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	<title>Comments for Paul Jakma&#039;s Blog</title>
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	<link>http://pjakma.wordpress.com</link>
	<description>Random ramblings</description>
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		<title>Comment on Guest Blog: A Pilot&#8217;s View on Banner-Towing by Shawn</title>
		<link>http://pjakma.wordpress.com/2010/05/13/banner-towing/#comment-1198</link>
		<dc:creator><![CDATA[Shawn]]></dc:creator>
		<pubDate>Sat, 18 May 2013 16:38:25 +0000</pubDate>
		<guid isPermaLink="false">http://pjakma.wordpress.com/?p=241#comment-1198</guid>
		<description><![CDATA[If you want to obtain a good deal from this article then you have to apply 
such techniques to your won website.]]></description>
		<content:encoded><![CDATA[<p>If you want to obtain a good deal from this article then you have to apply<br />
such techniques to your won website.</p>
]]></content:encoded>
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	<item>
		<title>Comment on Life by ompaul</title>
		<link>http://pjakma.wordpress.com/2013/05/12/life/#comment-1193</link>
		<dc:creator><![CDATA[ompaul]]></dc:creator>
		<pubDate>Sun, 12 May 2013 21:50:27 +0000</pubDate>
		<guid isPermaLink="false">http://pjakma.wordpress.com/?p=29137#comment-1193</guid>
		<description><![CDATA[Like they say: You are stardust!]]></description>
		<content:encoded><![CDATA[<p>Like they say: You are stardust!</p>
]]></content:encoded>
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	<item>
		<title>Comment on Mail-Followup-To Considered Harmful by Paul Jakma</title>
		<link>http://pjakma.wordpress.com/2009/07/08/mail-followup-to-considered-harmful/#comment-1192</link>
		<dc:creator><![CDATA[Paul Jakma]]></dc:creator>
		<pubDate>Sat, 11 May 2013 17:02:14 +0000</pubDate>
		<guid isPermaLink="false">http://pjakma.wordpress.com/?p=69#comment-1192</guid>
		<description><![CDATA[Set the Reply-To field to the list. Half-decent mailing list software should retain that, and half-decent MUAs should make it easy (e.g. default to) for the user to honour your Reply-To.]]></description>
		<content:encoded><![CDATA[<p>Set the Reply-To field to the list. Half-decent mailing list software should retain that, and half-decent MUAs should make it easy (e.g. default to) for the user to honour your Reply-To.</p>
]]></content:encoded>
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	<item>
		<title>Comment on Is this rusty bollard safe for bicyclists? by Cynthia</title>
		<link>http://pjakma.wordpress.com/2011/09/21/is-this-rusty-bollard-safe-for-bicyclists/#comment-1182</link>
		<dc:creator><![CDATA[Cynthia]]></dc:creator>
		<pubDate>Mon, 29 Apr 2013 20:00:36 +0000</pubDate>
		<guid isPermaLink="false">http://pjakma.wordpress.com/?p=441#comment-1182</guid>
		<description><![CDATA[Definitely a safety hazard.]]></description>
		<content:encoded><![CDATA[<p>Definitely a safety hazard.</p>
]]></content:encoded>
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		<title>Comment on The case against bicycle helmet advocacy: a quick guide by Paul Jakma</title>
		<link>http://pjakma.wordpress.com/2011/10/28/the-case-against-bicycle-helmets-quick-guide/#comment-1178</link>
		<dc:creator><![CDATA[Paul Jakma]]></dc:creator>
		<pubDate>Mon, 15 Apr 2013 11:18:37 +0000</pubDate>
		<guid isPermaLink="false">http://pjakma.wordpress.com/?p=447#comment-1178</guid>
		<description><![CDATA[Helmet wearers cycle more slowly if made to cycle without: http://www.sciencedirect.com/science/article/pii/S0001457512001169]]></description>
		<content:encoded><![CDATA[<p>Helmet wearers cycle more slowly if made to cycle without: <a href="http://www.sciencedirect.com/science/article/pii/S0001457512001169" rel="nofollow">http://www.sciencedirect.com/science/article/pii/S0001457512001169</a></p>
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		<title>Comment on Guest Blog: A Pilot&#8217;s View on Banner-Towing by Rudy Jakma</title>
		<link>http://pjakma.wordpress.com/2010/05/13/banner-towing/#comment-1172</link>
		<dc:creator><![CDATA[Rudy Jakma]]></dc:creator>
		<pubDate>Thu, 28 Feb 2013 13:41:50 +0000</pubDate>
		<guid isPermaLink="false">http://pjakma.wordpress.com/?p=241#comment-1172</guid>
		<description><![CDATA[Suffering from nostalgia or just reading this and watching a few photos and videos are awakening old memories ?
These videos , mentioned in the original entry, are great stuff.
The C150 (&quot;OO TOW&quot;) video clearly shows the chutes: one attached to the towing boom of the banner itself, a smaller one on the grapnel (you wouldn&#039;t want that falling on your head from 1000 feet now, would you ?).
Another one shows a pick-up with a Piper Pawnee, a purpose-built agricultural airplane with shots from the cockpit and a camera attached to the strut on top of the wing. Vveerryy nnnniiiicccceeee indeed.
It also seems to indicated the tightening of rules and regulations over the years.
Because the Pawnee takes off from a runway, climbs rather high and turns around the airport for the actual pick-up run.
In our wild-west days we would&#039; nay bother. Often we would take-off, make a quick side-step, throw the hook out and pick up without even bothering to circle.
Or, if we did, assuming there was not a lot of other traffic, we made the turns so tight that it once prompted the aerodrome manager to comment: &quot;I know that you are flying commercially and time is money, but would you please keep your traffic pattern outside the aerodrome boundary ?&quot;
This aerodrome was a grass field of no more than about 700 x 700 metres.
But some summers I flew more than 500 hours  - in one single season !
On one occasion the local aeroclub had a spot-landing competition.
They had laid out a square, 50x50 metres and had to (try to) land in that square. Many missed.
Then the banner-towing pilots returned from their mission. We spotted the square and tried our hand. To the disgust of the competitors, not one of us missed the spot and most even managed to stop in the square. But then, we flew every day the weather allowed. And here is the key: because we knew exactly what the aircraft could do and what we could do with it. With the decline of banner towing, that level of experience has declined as well.]]></description>
		<content:encoded><![CDATA[<p>Suffering from nostalgia or just reading this and watching a few photos and videos are awakening old memories ?<br />
These videos , mentioned in the original entry, are great stuff.<br />
The C150 (&#8220;OO TOW&#8221;) video clearly shows the chutes: one attached to the towing boom of the banner itself, a smaller one on the grapnel (you wouldn&#8217;t want that falling on your head from 1000 feet now, would you ?).<br />
Another one shows a pick-up with a Piper Pawnee, a purpose-built agricultural airplane with shots from the cockpit and a camera attached to the strut on top of the wing. Vveerryy nnnniiiicccceeee indeed.<br />
It also seems to indicated the tightening of rules and regulations over the years.<br />
Because the Pawnee takes off from a runway, climbs rather high and turns around the airport for the actual pick-up run.<br />
In our wild-west days we would&#8217; nay bother. Often we would take-off, make a quick side-step, throw the hook out and pick up without even bothering to circle.<br />
Or, if we did, assuming there was not a lot of other traffic, we made the turns so tight that it once prompted the aerodrome manager to comment: &#8220;I know that you are flying commercially and time is money, but would you please keep your traffic pattern outside the aerodrome boundary ?&#8221;<br />
This aerodrome was a grass field of no more than about 700 x 700 metres.<br />
But some summers I flew more than 500 hours  &#8211; in one single season !<br />
On one occasion the local aeroclub had a spot-landing competition.<br />
They had laid out a square, 50&#215;50 metres and had to (try to) land in that square. Many missed.<br />
Then the banner-towing pilots returned from their mission. We spotted the square and tried our hand. To the disgust of the competitors, not one of us missed the spot and most even managed to stop in the square. But then, we flew every day the weather allowed. And here is the key: because we knew exactly what the aircraft could do and what we could do with it. With the decline of banner towing, that level of experience has declined as well.</p>
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		<title>Comment on Guest Blog: A Pilot&#8217;s View on Banner-Towing by Rudy Jakma</title>
		<link>http://pjakma.wordpress.com/2010/05/13/banner-towing/#comment-1171</link>
		<dc:creator><![CDATA[Rudy Jakma]]></dc:creator>
		<pubDate>Thu, 28 Feb 2013 12:32:59 +0000</pubDate>
		<guid isPermaLink="false">http://pjakma.wordpress.com/?p=241#comment-1171</guid>
		<description><![CDATA[Read my previous comments: Banner towing is only dangerous if the pilot is not properly trained and / or insufficiently aware of the risks.
That does not apply to aviation alone.
One problem is that aerial advertising - &quot;banner towing&quot; - is not used much any more to promote or augment sales efforts.
The result is a lack of training and a lack of pilots with a solid experience in towing operations. When I started flying (in 1965 !) it was &quot;big business&quot;, especially on the continent. A major Dutch air charter company Martinair, now the main air cargo arm of KLM Royal Dutch Airlines, began with tethered balloons, followed by banner towing and grew into a major operator. The founder, Martin Schroder, kept the banner towing operation going for many years. Of course, nostalgia was not the main consideration: it made money.
In the heyday of the 1970&#039;s, this company &quot;Luchtreclame Nederland&quot;, re-named &quot;Reclamair&quot;, owned 12 Piper Super Cub 150hp aircraft.
The chief pilot, a man called Gerrit Wesseling, kept close watch over the operation and the standard of competence of the pilots. Accidents did not occur under his stewardship. And the company logged thousands of hours every summer season.]]></description>
		<content:encoded><![CDATA[<p>Read my previous comments: Banner towing is only dangerous if the pilot is not properly trained and / or insufficiently aware of the risks.<br />
That does not apply to aviation alone.<br />
One problem is that aerial advertising &#8211; &#8220;banner towing&#8221; &#8211; is not used much any more to promote or augment sales efforts.<br />
The result is a lack of training and a lack of pilots with a solid experience in towing operations. When I started flying (in 1965 !) it was &#8220;big business&#8221;, especially on the continent. A major Dutch air charter company Martinair, now the main air cargo arm of KLM Royal Dutch Airlines, began with tethered balloons, followed by banner towing and grew into a major operator. The founder, Martin Schroder, kept the banner towing operation going for many years. Of course, nostalgia was not the main consideration: it made money.<br />
In the heyday of the 1970&#8242;s, this company &#8220;Luchtreclame Nederland&#8221;, re-named &#8220;Reclamair&#8221;, owned 12 Piper Super Cub 150hp aircraft.<br />
The chief pilot, a man called Gerrit Wesseling, kept close watch over the operation and the standard of competence of the pilots. Accidents did not occur under his stewardship. And the company logged thousands of hours every summer season.</p>
]]></content:encoded>
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		<title>Comment on Guest Blog: A Pilot&#8217;s View on Banner-Towing by Rudy Jakma</title>
		<link>http://pjakma.wordpress.com/2010/05/13/banner-towing/#comment-1170</link>
		<dc:creator><![CDATA[Rudy Jakma]]></dc:creator>
		<pubDate>Thu, 28 Feb 2013 12:13:37 +0000</pubDate>
		<guid isPermaLink="false">http://pjakma.wordpress.com/?p=241#comment-1170</guid>
		<description><![CDATA[An excellent question.
The air behind the propeller indeed, inevitably, makes a &quot;curve&quot; as it spirals around the fuselage. All pilots flying single-engined aircraft know this. American-built aircraft engines in general turn clockwise (seen from the cockpit), British-built ones the other way around. During take-off this spiral effect is at it&#039;s maximum as the forward speed of the aircraft (the airspeed) is low and the engine runs at full power. Therefore pilots know that they have to compensate by feeding in some rudder during take-off. Cessna&#039;s and Pipers (amongst many others) need a tap of right rudder, the Tiger Moth, Chipmunk (at least if not re-engined) need a bit of pressure on the left rudder pedal to compensate. Light twin-engined aircraft for that reason have a &quot;critical&quot; engine, if that one fails control will be a bit more difficult than during a failure of the other one. Light twin-engined aircraft often do not have a lot of excess power to cope with an engine failure. A rather sick joke is: What is the purpose of the second engine on a light twin ?
Answer: If one fails, the other one will carry you to the scene of the accident .
If this still does not put you off flying:
To answer the original question: The banner is attached to the tail of the aircraft, I have in my original essay mentioned the grapnel with a line of 30 - 40 feet. But the banner itself is attached to a wide loop and between loop and banner is another line, also of 30-40 feet.
That brings the banner some 70 feet behind the aircraft - at least, which will move at about 50 - 60 mph through the air so the so-called &quot;propwash&quot; will not have much effect on the banner any more.
Then, because of it&#039;s own weight and drag, it tends to hang maybe 10 - 15 feet below the height of the aircraft itself, bringing it out of the propwash anyway.
So the main concern is to ensure that it will hang straight, not flat or upside-down.
This is achieved by attaching the tow line to three lines (it gets complicated !) that in turn are attached to the front boom. The top line is the shortest, the middle a bit longer and the bottom one, of course, the longest. This brings the centre of gravity below the centre-line of the banner.
To further improve stability sometimes a small weight is attached to the bottom of the boom. 
It will be evident that the banner itself will have to be well-made. Any stresses can cause the banner to twist in the airstream.
If it does rotate, it will more likely be caused by an aerodynamic fault in the banner itself than due to the propwash (the rotating air thrown back by the propeller).
Now, it the aircraft were to lose the banner or if e.g. an engine problem would require a premature jettisoning of the banner, the front boom will tend to fall straight down like a spear.
Some aviation authorities require the insertion of a parachute in the towing line in order to prevent serious accidents if the banner were to fall in a residential area. During flight, the &#039;chute will be kept closed by the airstream, but in fall it will open. Of course, it is the duty of the pilot to include essentials like this in a pre-flight check.Especially in the case of newly made-up banners I have made it a point to go in the field with the ground crew to check it all over. On one occasion, the &#039;chute was attached the wrong way around and would have opened during pick-up.
Now many may wonder: Is banner-towing dangerous?
Well, I was a member of the Tiger Club, then at Redhill north of London Gatwick for many years.
On the instrument panel of every aircraft they had a little placard with the inscription: &quot;All aircraft bite fools&quot;.
It applies to all types of flying. Training and a certain level of self-discipline, adherence to established and proven safety procedures and above all: not to assume that experience will be a substitute.
If you do ignore this, you need luck !
I have logged about 22000 flying hours in total.  Nearly 4000 were &quot;banner towing&quot;. I have flown single-seaters, biplanes, twins, business jets and airliners both turbo-props and jets.
I have had a few difficult moments - and not even that many, coming to think of it, but no accidents ! None ! And I flew from 1965 until 2009.]]></description>
		<content:encoded><![CDATA[<p>An excellent question.<br />
The air behind the propeller indeed, inevitably, makes a &#8220;curve&#8221; as it spirals around the fuselage. All pilots flying single-engined aircraft know this. American-built aircraft engines in general turn clockwise (seen from the cockpit), British-built ones the other way around. During take-off this spiral effect is at it&#8217;s maximum as the forward speed of the aircraft (the airspeed) is low and the engine runs at full power. Therefore pilots know that they have to compensate by feeding in some rudder during take-off. Cessna&#8217;s and Pipers (amongst many others) need a tap of right rudder, the Tiger Moth, Chipmunk (at least if not re-engined) need a bit of pressure on the left rudder pedal to compensate. Light twin-engined aircraft for that reason have a &#8220;critical&#8221; engine, if that one fails control will be a bit more difficult than during a failure of the other one. Light twin-engined aircraft often do not have a lot of excess power to cope with an engine failure. A rather sick joke is: What is the purpose of the second engine on a light twin ?<br />
Answer: If one fails, the other one will carry you to the scene of the accident .<br />
If this still does not put you off flying:<br />
To answer the original question: The banner is attached to the tail of the aircraft, I have in my original essay mentioned the grapnel with a line of 30 &#8211; 40 feet. But the banner itself is attached to a wide loop and between loop and banner is another line, also of 30-40 feet.<br />
That brings the banner some 70 feet behind the aircraft &#8211; at least, which will move at about 50 &#8211; 60 mph through the air so the so-called &#8220;propwash&#8221; will not have much effect on the banner any more.<br />
Then, because of it&#8217;s own weight and drag, it tends to hang maybe 10 &#8211; 15 feet below the height of the aircraft itself, bringing it out of the propwash anyway.<br />
So the main concern is to ensure that it will hang straight, not flat or upside-down.<br />
This is achieved by attaching the tow line to three lines (it gets complicated !) that in turn are attached to the front boom. The top line is the shortest, the middle a bit longer and the bottom one, of course, the longest. This brings the centre of gravity below the centre-line of the banner.<br />
To further improve stability sometimes a small weight is attached to the bottom of the boom.<br />
It will be evident that the banner itself will have to be well-made. Any stresses can cause the banner to twist in the airstream.<br />
If it does rotate, it will more likely be caused by an aerodynamic fault in the banner itself than due to the propwash (the rotating air thrown back by the propeller).<br />
Now, it the aircraft were to lose the banner or if e.g. an engine problem would require a premature jettisoning of the banner, the front boom will tend to fall straight down like a spear.<br />
Some aviation authorities require the insertion of a parachute in the towing line in order to prevent serious accidents if the banner were to fall in a residential area. During flight, the &#8216;chute will be kept closed by the airstream, but in fall it will open. Of course, it is the duty of the pilot to include essentials like this in a pre-flight check.Especially in the case of newly made-up banners I have made it a point to go in the field with the ground crew to check it all over. On one occasion, the &#8216;chute was attached the wrong way around and would have opened during pick-up.<br />
Now many may wonder: Is banner-towing dangerous?<br />
Well, I was a member of the Tiger Club, then at Redhill north of London Gatwick for many years.<br />
On the instrument panel of every aircraft they had a little placard with the inscription: &#8220;All aircraft bite fools&#8221;.<br />
It applies to all types of flying. Training and a certain level of self-discipline, adherence to established and proven safety procedures and above all: not to assume that experience will be a substitute.<br />
If you do ignore this, you need luck !<br />
I have logged about 22000 flying hours in total.  Nearly 4000 were &#8220;banner towing&#8221;. I have flown single-seaters, biplanes, twins, business jets and airliners both turbo-props and jets.<br />
I have had a few difficult moments &#8211; and not even that many, coming to think of it, but no accidents ! None ! And I flew from 1965 until 2009.</p>
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		<title>Comment on The case against bicycle helmet advocacy: a quick guide by Paul Jakma</title>
		<link>http://pjakma.wordpress.com/2011/10/28/the-case-against-bicycle-helmets-quick-guide/#comment-1169</link>
		<dc:creator><![CDATA[Paul Jakma]]></dc:creator>
		<pubDate>Thu, 28 Feb 2013 07:33:13 +0000</pubDate>
		<guid isPermaLink="false">http://pjakma.wordpress.com/?p=447#comment-1169</guid>
		<description><![CDATA[Another study showing helmet laws do reduce cycling head injuries in children. However, it is accompanied by increase in head injuries in children from other causes, suggesting that the cycling decrease is due to drop in cycling rates rather than the effect of the helmets on crashes: 

http://www.nber.org/papers/w18773]]></description>
		<content:encoded><![CDATA[<p>Another study showing helmet laws do reduce cycling head injuries in children. However, it is accompanied by increase in head injuries in children from other causes, suggesting that the cycling decrease is due to drop in cycling rates rather than the effect of the helmets on crashes: </p>
<p><a href="http://www.nber.org/papers/w18773" rel="nofollow">http://www.nber.org/papers/w18773</a></p>
]]></content:encoded>
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		<title>Comment on Guest Blog: A Pilot&#8217;s View on Banner-Towing by Now I Know &#8211; Flying Signs</title>
		<link>http://pjakma.wordpress.com/2010/05/13/banner-towing/#comment-1168</link>
		<dc:creator><![CDATA[Now I Know &#8211; Flying Signs]]></dc:creator>
		<pubDate>Sun, 24 Feb 2013 02:05:05 +0000</pubDate>
		<guid isPermaLink="false">http://pjakma.wordpress.com/?p=241#comment-1168</guid>
		<description><![CDATA[[...] As seen in this video (but you will have to look closely), the plane flies toward a pair of uprights, dangling a hook about 25 feet behind. The sign is attached to a big loop, which itself lays across a pair of uprights. When the plane flies over the uprights, the hook grabs onto the loop, lifting it &#8212; and the sign &#8212; skyward.  In order to pull off the maneuver, the plane needs to get rather close to the ground &#8212; sometimes, no more than 30 or 40 feet above the surface.  While the whole process is risky (and there have been terrible accidents), it really is the only option available.  (For an excellent essay on the entire process, click here.) [...]]]></description>
		<content:encoded><![CDATA[<p>[...] As seen in this video (but you will have to look closely), the plane flies toward a pair of uprights, dangling a hook about 25 feet behind. The sign is attached to a big loop, which itself lays across a pair of uprights. When the plane flies over the uprights, the hook grabs onto the loop, lifting it &#8212; and the sign &#8212; skyward.  In order to pull off the maneuver, the plane needs to get rather close to the ground &#8212; sometimes, no more than 30 or 40 feet above the surface.  While the whole process is risky (and there have been terrible accidents), it really is the only option available.  (For an excellent essay on the entire process, click here.) [...]</p>
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		<title>Comment on Mail-Followup-To Considered Harmful by Ian</title>
		<link>http://pjakma.wordpress.com/2009/07/08/mail-followup-to-considered-harmful/#comment-1167</link>
		<dc:creator><![CDATA[Ian]]></dc:creator>
		<pubDate>Mon, 18 Feb 2013 05:50:16 +0000</pubDate>
		<guid isPermaLink="false">http://pjakma.wordpress.com/?p=69#comment-1167</guid>
		<description><![CDATA[So, when I am starting a thread how I am supposed to indicate that I DO NOT want the extra personal reply, so the MUA of the replier can cue them?]]></description>
		<content:encoded><![CDATA[<p>So, when I am starting a thread how I am supposed to indicate that I DO NOT want the extra personal reply, so the MUA of the replier can cue them?</p>
]]></content:encoded>
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		<title>Comment on McGill&#8217;s buses and yellow lights by John Fleming</title>
		<link>http://pjakma.wordpress.com/2012/03/19/mcgills-buses-and-yellow-lights/#comment-1120</link>
		<dc:creator><![CDATA[John Fleming]]></dc:creator>
		<pubDate>Sat, 08 Dec 2012 19:45:26 +0000</pubDate>
		<guid isPermaLink="false">http://pjakma.wordpress.com/?p=500#comment-1120</guid>
		<description><![CDATA[no one seems too bothered that this company is run by a known criminals &amp; co, typical SNP politicians talk a lot and do nothing]]></description>
		<content:encoded><![CDATA[<p>no one seems too bothered that this company is run by a known criminals &amp; co, typical SNP politicians talk a lot and do nothing</p>
]]></content:encoded>
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		<title>Comment on Dear geek, the BBC is not your friend by Paul Jakma</title>
		<link>http://pjakma.wordpress.com/2012/10/01/dear-geek-the-bbc-is-not-your-friend/#comment-997</link>
		<dc:creator><![CDATA[Paul Jakma]]></dc:creator>
		<pubDate>Wed, 03 Oct 2012 13:48:50 +0000</pubDate>
		<guid isPermaLink="false">http://pjakma.wordpress.com/?p=538#comment-997</guid>
		<description><![CDATA[Building a digital TV from scratch is something that you can do, without needing from permission from anyone - the specifications and patents are all available on non-discriminatory terms, as result there are many vendors of ready-made components (if you don&#039;t want to do it entirely from scratch). Ditto for a PVR. However, you can not build a new IPTV platform, without the approval and explicit co-operation of either Adobe¹ or the BBC.

E.g. I could get a IPTV-capable TV from random, cheap Asian vendors, which support &lt;i&gt;all&lt;/i&gt; the technologies required to use the BBC HTML video iPlayer platform, yet the TV will &lt;i&gt;not work&lt;/i&gt; with that platform, unless BBC approves of that vendor and that vendor has done the work to enable it. The BBC has constructed this power for itself. Now imagine if every state broadcaster in the world takes this approach - its going to increase the costs of IPTV significantly.

So yes, I completely agree with you. It should not be different. However, it is. That is my complaint. It should be yours too.

Update: A concrete example today: Android. Android supports all the technologies needed for the HTML video option, yet if you try to access iPlayer with Android it will not work (unless you have Flash, which many Android users do not). Why is this? The BBC has not approved Android for some reason, even though it has approved Apple iOS devices. Android users have been asking this of the BBC for years, to little avail. The BBC recently introduced an &lt;a href=&quot;http://www.bbc.co.uk/blogs/bbcinternet/2012/09/media_player_android_phones_ta.html&quot; rel=&quot;nofollow&quot;&gt;Android app&lt;/a&gt; to solve this problem, which is basically an Adobe Air wrapper for the Flash interface, however many users appear to find it substandard in features and performance, e.g. compared to the HTML video interface available to iOS. This would not be an issue if there were non-discriminatory access to the BBCs&#039; IPTV platform.

1.  For however much longer the Flash platform remains relevant - I wouldn&#039;t want to invest in it at this point.]]></description>
		<content:encoded><![CDATA[<p>Building a digital TV from scratch is something that you can do, without needing from permission from anyone &#8211; the specifications and patents are all available on non-discriminatory terms, as result there are many vendors of ready-made components (if you don&#8217;t want to do it entirely from scratch). Ditto for a PVR. However, you can not build a new IPTV platform, without the approval and explicit co-operation of either Adobe¹ or the BBC.</p>
<p>E.g. I could get a IPTV-capable TV from random, cheap Asian vendors, which support <i>all</i> the technologies required to use the BBC HTML video iPlayer platform, yet the TV will <i>not work</i> with that platform, unless BBC approves of that vendor and that vendor has done the work to enable it. The BBC has constructed this power for itself. Now imagine if every state broadcaster in the world takes this approach &#8211; its going to increase the costs of IPTV significantly.</p>
<p>So yes, I completely agree with you. It should not be different. However, it is. That is my complaint. It should be yours too.</p>
<p>Update: A concrete example today: Android. Android supports all the technologies needed for the HTML video option, yet if you try to access iPlayer with Android it will not work (unless you have Flash, which many Android users do not). Why is this? The BBC has not approved Android for some reason, even though it has approved Apple iOS devices. Android users have been asking this of the BBC for years, to little avail. The BBC recently introduced an <a href="http://www.bbc.co.uk/blogs/bbcinternet/2012/09/media_player_android_phones_ta.html" rel="nofollow">Android app</a> to solve this problem, which is basically an Adobe Air wrapper for the Flash interface, however many users appear to find it substandard in features and performance, e.g. compared to the HTML video interface available to iOS. This would not be an issue if there were non-discriminatory access to the BBCs&#8217; IPTV platform.</p>
<p>1.  For however much longer the Flash platform remains relevant &#8211; I wouldn&#8217;t want to invest in it at this point.</p>
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		<title>Comment on Dear geek, the BBC is not your friend by David</title>
		<link>http://pjakma.wordpress.com/2012/10/01/dear-geek-the-bbc-is-not-your-friend/#comment-996</link>
		<dc:creator><![CDATA[David]]></dc:creator>
		<pubDate>Wed, 03 Oct 2012 11:49:00 +0000</pubDate>
		<guid isPermaLink="false">http://pjakma.wordpress.com/?p=538#comment-996</guid>
		<description><![CDATA[Surely the  barrier is no different to the technology needed to create a TV, build a PVR or to build a video recorder? Why should the barrier to entry be different for IP delivered media to that of terrestrial broadcasting?]]></description>
		<content:encoded><![CDATA[<p>Surely the  barrier is no different to the technology needed to create a TV, build a PVR or to build a video recorder? Why should the barrier to entry be different for IP delivered media to that of terrestrial broadcasting?</p>
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		<title>Comment on Dear geek, the BBC is not your friend by Paul Jakma</title>
		<link>http://pjakma.wordpress.com/2012/10/01/dear-geek-the-bbc-is-not-your-friend/#comment-995</link>
		<dc:creator><![CDATA[Paul Jakma]]></dc:creator>
		<pubDate>Wed, 03 Oct 2012 09:16:12 +0000</pubDate>
		<guid isPermaLink="false">http://pjakma.wordpress.com/?p=538#comment-995</guid>
		<description><![CDATA[I think the BBC should provide methods that are generally accessible (even if requiring authentication), and not dependent on a restricted, selected set of suppliers. If the BBC were do provide that, then it wouldn&#039;t matter what other methods they provide.

Unfortunately, at the moment, the only options are:

a) An obsolete technology, whose supplier is no longer particularly interested in porting to new platforms, nor even in continuing to support existing platforms. Even if they were interested, it may require a six-figure sum and/or per-unit royalties.

b) Persuade the BBC to approve your device. Whether the BBC will do so depends on unspecified criteria.

The net result is that at present, entrance to the ondemand IPTV market has a very high barrier to entry. This is entirely due to the BBC. Further, the longer this goes on the more it seems the BBC is deliberately pursuing a strategy of building a restricted IPTV market.

Is my view.]]></description>
		<content:encoded><![CDATA[<p>I think the BBC should provide methods that are generally accessible (even if requiring authentication), and not dependent on a restricted, selected set of suppliers. If the BBC were do provide that, then it wouldn&#8217;t matter what other methods they provide.</p>
<p>Unfortunately, at the moment, the only options are:</p>
<p>a) An obsolete technology, whose supplier is no longer particularly interested in porting to new platforms, nor even in continuing to support existing platforms. Even if they were interested, it may require a six-figure sum and/or per-unit royalties.</p>
<p>b) Persuade the BBC to approve your device. Whether the BBC will do so depends on unspecified criteria.</p>
<p>The net result is that at present, entrance to the ondemand IPTV market has a very high barrier to entry. This is entirely due to the BBC. Further, the longer this goes on the more it seems the BBC is deliberately pursuing a strategy of building a restricted IPTV market.</p>
<p>Is my view.</p>
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		<title>Comment on Dear geek, the BBC is not your friend by David</title>
		<link>http://pjakma.wordpress.com/2012/10/01/dear-geek-the-bbc-is-not-your-friend/#comment-994</link>
		<dc:creator><![CDATA[David]]></dc:creator>
		<pubDate>Tue, 02 Oct 2012 19:07:37 +0000</pubDate>
		<guid isPermaLink="false">http://pjakma.wordpress.com/?p=538#comment-994</guid>
		<description><![CDATA[If, as you say, no alternatives exist then are you also saying that the BBC should cease providing iPlayer  streams using Flash? 

It would appear that the BBC selected a supplier of streaming technology (Adobe) as a partner on the iPlayer project. Previous comments from the BBC would indicate a key factor was cross platform delivery. Previous to adopting Adobe they used Microsoft technology. The selection of Adobe appears to be above board - as you say what other platforms were available? Real, Microsoft, Quicktime (Apple) come to mind - and I&#039;m sure we all remember how bad Real player which the BBC used to use for audio...

The fact that all the UK IPTV providers use DRM and/or Flash would indicate that digital protection of the stream is a requirement. I would have thought it unlikely that anyone would spend good money on DRM delivery platforms if they weren&#039;t needed.

You can record TV locally as broadcast for time-shifted viewing - I think this has to be performed from the live broadcast and in your home. The fact TV is broadcast un-encrypted allows you to do this. The universal delivery of TV is currently mandated by the BBC Trust. The nature of the current TV license/BBC funding would need to change if delivery of all TV moved to the Internet. I&#039;m sure technology would be developed to support local timeshift copies that are digitally locked to the local user to ensure copyright is preserved.]]></description>
		<content:encoded><![CDATA[<p>If, as you say, no alternatives exist then are you also saying that the BBC should cease providing iPlayer  streams using Flash? </p>
<p>It would appear that the BBC selected a supplier of streaming technology (Adobe) as a partner on the iPlayer project. Previous comments from the BBC would indicate a key factor was cross platform delivery. Previous to adopting Adobe they used Microsoft technology. The selection of Adobe appears to be above board &#8211; as you say what other platforms were available? Real, Microsoft, Quicktime (Apple) come to mind &#8211; and I&#8217;m sure we all remember how bad Real player which the BBC used to use for audio&#8230;</p>
<p>The fact that all the UK IPTV providers use DRM and/or Flash would indicate that digital protection of the stream is a requirement. I would have thought it unlikely that anyone would spend good money on DRM delivery platforms if they weren&#8217;t needed.</p>
<p>You can record TV locally as broadcast for time-shifted viewing &#8211; I think this has to be performed from the live broadcast and in your home. The fact TV is broadcast un-encrypted allows you to do this. The universal delivery of TV is currently mandated by the BBC Trust. The nature of the current TV license/BBC funding would need to change if delivery of all TV moved to the Internet. I&#8217;m sure technology would be developed to support local timeshift copies that are digitally locked to the local user to ensure copyright is preserved.</p>
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		<title>Comment on Dear geek, the BBC is not your friend by Paul Jakma</title>
		<link>http://pjakma.wordpress.com/2012/10/01/dear-geek-the-bbc-is-not-your-friend/#comment-993</link>
		<dc:creator><![CDATA[Paul Jakma]]></dc:creator>
		<pubDate>Tue, 02 Oct 2012 08:50:02 +0000</pubDate>
		<guid isPermaLink="false">http://pjakma.wordpress.com/?p=538#comment-993</guid>
		<description><![CDATA[Flash is a proprietary technology. It is available only from a single supplier, and hence only platforms that the supplier cares to support have Flash. That supplier can demand porting fees and sometimes per-unit royalties for that support (the PC version of Flash is free to end-users, but it is not generally the case that Flash is free of cost). That is a  clear-cut anti-competitive situation. 

For there to be competition in the market for Flash, requires there to be an alternative supplier for it (one that actually works). I am fairly confident that none such exists (and I know about Gnash and Lightspark). If you know otherwise, feel free to point me towards that supplier.

See also an earlier blog of mine, &lt;a href=&quot;http://pjakma.wordpress.com/2010/04/17/letter-to-the-bbc-trust-regarding-concerns-with-the-bbc-iplayer/&quot; rel=&quot;nofollow&quot;&gt;“Letter to the BBC Trust regarding concerns with the BBC iPlayer”&lt;/a&gt;.]]></description>
		<content:encoded><![CDATA[<p>Flash is a proprietary technology. It is available only from a single supplier, and hence only platforms that the supplier cares to support have Flash. That supplier can demand porting fees and sometimes per-unit royalties for that support (the PC version of Flash is free to end-users, but it is not generally the case that Flash is free of cost). That is a  clear-cut anti-competitive situation. </p>
<p>For there to be competition in the market for Flash, requires there to be an alternative supplier for it (one that actually works). I am fairly confident that none such exists (and I know about Gnash and Lightspark). If you know otherwise, feel free to point me towards that supplier.</p>
<p>See also an earlier blog of mine, <a href="http://pjakma.wordpress.com/2010/04/17/letter-to-the-bbc-trust-regarding-concerns-with-the-bbc-iplayer/" rel="nofollow">“Letter to the BBC Trust regarding concerns with the BBC iPlayer”</a>.</p>
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		<title>Comment on Dear geek, the BBC is not your friend by Mordan</title>
		<link>http://pjakma.wordpress.com/2012/10/01/dear-geek-the-bbc-is-not-your-friend/#comment-992</link>
		<dc:creator><![CDATA[Mordan]]></dc:creator>
		<pubDate>Tue, 02 Oct 2012 08:33:58 +0000</pubDate>
		<guid isPermaLink="false">http://pjakma.wordpress.com/?p=538#comment-992</guid>
		<description><![CDATA[How is using Flash anti-competitive? You were making reasoned arguments up to that point then go off on one. Saying &quot;to my thinking&quot; is not the same as giving evidence or facts.]]></description>
		<content:encoded><![CDATA[<p>How is using Flash anti-competitive? You were making reasoned arguments up to that point then go off on one. Saying &#8220;to my thinking&#8221; is not the same as giving evidence or facts.</p>
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		<title>Comment on Dear geek, the BBC is not your friend by Paul Jakma</title>
		<link>http://pjakma.wordpress.com/2012/10/01/dear-geek-the-bbc-is-not-your-friend/#comment-988</link>
		<dc:creator><![CDATA[Paul Jakma]]></dc:creator>
		<pubDate>Mon, 01 Oct 2012 17:21:20 +0000</pubDate>
		<guid isPermaLink="false">http://pjakma.wordpress.com/?p=538#comment-988</guid>
		<description><![CDATA[Let me answer your &quot;ideals&quot; and &quot;compromise&quot; point. 

Let me be clear, I do not object to the BBC authenticating the end-user. E.g. if the BBC would sign my certificate, so that my home-built IPTV device could access the HTML video iPlayer interface, I would be happy. More generally, to satisfy me, the BBC would need at least a semi-automated Cert Authority system to allow small vendors and hobbyists to request and obtain signed certs. This would allow the BBC to later revoke access, if they had evidence of misbehaviour by an end-user.

My problem is that the BBC discriminates in who it will issue these certificates to, locking out all but a selected few from the ability to build IPTV devices.]]></description>
		<content:encoded><![CDATA[<p>Let me answer your &#8220;ideals&#8221; and &#8220;compromise&#8221; point. </p>
<p>Let me be clear, I do not object to the BBC authenticating the end-user. E.g. if the BBC would sign my certificate, so that my home-built IPTV device could access the HTML video iPlayer interface, I would be happy. More generally, to satisfy me, the BBC would need at least a semi-automated Cert Authority system to allow small vendors and hobbyists to request and obtain signed certs. This would allow the BBC to later revoke access, if they had evidence of misbehaviour by an end-user.</p>
<p>My problem is that the BBC discriminates in who it will issue these certificates to, locking out all but a selected few from the ability to build IPTV devices.</p>
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		<title>Comment on Dear geek, the BBC is not your friend by Paul Jakma</title>
		<link>http://pjakma.wordpress.com/2012/10/01/dear-geek-the-bbc-is-not-your-friend/#comment-987</link>
		<dc:creator><![CDATA[Paul Jakma]]></dc:creator>
		<pubDate>Mon, 01 Oct 2012 17:10:42 +0000</pubDate>
		<guid isPermaLink="false">http://pjakma.wordpress.com/?p=538#comment-987</guid>
		<description><![CDATA[Commercial confidentiality is not an absolute in the FOI law. If the commercial sensitivity being prevented is relatively limited compared to the public interest being defended, then it should be released.

It&#039;s a balancing judgement, but unfortunately the public can do little but trust the BBC has made the right call. However, I do not accept for a moment that the BBC had their hands bound by content makers - the BBC owns or part owns many of the production companies it commissions from! And for those it does not own, they have demonstrated they are happy to fore-go encryption elsewhere. I am not even convinced these contracts really require the BBC to implement DRM, except perhaps with BBC Worldwide. Particularly given the technology is evolving, and the BBC was not in a position to guarantee OfCom or the BBC Trust would have actually allowed them to implement DRM.

As for DVB-T2, it does *NOT* have DRM. The BBC *tried* to get DRM for FreeViewHD, using the same arguments as for digital, but OfCom disallowed it ruling, iirc, that BBCs&#039; remit requires them to broadcast unencrypted. Parts of the EPG data are indeed encrypted, but the actual MPEG media streams are NOT encrypted. And guess what, there&#039;s plenty of content to broadcast!

As for SD, the content available on iPlayer often doesn&#039;t go past SD in potential quality. Which is also being broadcast in the clear!

I sympathise with the BBC situation somewhat. However the arguments they&#039;ve made have reality-consistency issues to them that undermine their credibility. Where those arguments might hold water, it relies on documents which, conveniently, can not be released or even quoted from; on associations with other organisations who can not be identified.

So basically, there are 2 poles to the range of ways to view what has happened:

1. The valiant little BBC fought hard for the public interest, but ultimately was cornered by the powerful private content-makers, and forced into signing away the public&#039;s fair-dealing rights. Worse, the BBC can not even defend itself from the likes of  me, because those powerful content-makers have made every detail of those agreements confidential.

Poor BBC!

2. The BBC, under the leadership of people who sometimes come from and often later go to private media companies, have used the extensive resources available to it to re-shape the future of TV (which IPTV almost certainly represents). In particular, removing freedoms the public has held for many decades. Freedoms which private media companies have never been easy with, and which they find inconvenient in the digital world. The BBC  have justified this based on the deals the BBC has made with private media companies. Where those deals require DRM, the BBC has actively encouraged the addition of such terms. The BBC is conveniently able to hide these deals from FOI requests under the smoke-screen of commercial sensitivity, even though some of these deals will be with companies the BBC part owns or even wholly owns - BBC Worldwide most notably.

I don&#039;t know which of these two extremes is more representative of what&#039;s happened. The BBC won&#039;t show me the documents that could allow me to tell! I suspect option 2 may be closer to the truth though.]]></description>
		<content:encoded><![CDATA[<p>Commercial confidentiality is not an absolute in the FOI law. If the commercial sensitivity being prevented is relatively limited compared to the public interest being defended, then it should be released.</p>
<p>It&#8217;s a balancing judgement, but unfortunately the public can do little but trust the BBC has made the right call. However, I do not accept for a moment that the BBC had their hands bound by content makers &#8211; the BBC owns or part owns many of the production companies it commissions from! And for those it does not own, they have demonstrated they are happy to fore-go encryption elsewhere. I am not even convinced these contracts really require the BBC to implement DRM, except perhaps with BBC Worldwide. Particularly given the technology is evolving, and the BBC was not in a position to guarantee OfCom or the BBC Trust would have actually allowed them to implement DRM.</p>
<p>As for DVB-T2, it does *NOT* have DRM. The BBC *tried* to get DRM for FreeViewHD, using the same arguments as for digital, but OfCom disallowed it ruling, iirc, that BBCs&#8217; remit requires them to broadcast unencrypted. Parts of the EPG data are indeed encrypted, but the actual MPEG media streams are NOT encrypted. And guess what, there&#8217;s plenty of content to broadcast!</p>
<p>As for SD, the content available on iPlayer often doesn&#8217;t go past SD in potential quality. Which is also being broadcast in the clear!</p>
<p>I sympathise with the BBC situation somewhat. However the arguments they&#8217;ve made have reality-consistency issues to them that undermine their credibility. Where those arguments might hold water, it relies on documents which, conveniently, can not be released or even quoted from; on associations with other organisations who can not be identified.</p>
<p>So basically, there are 2 poles to the range of ways to view what has happened:</p>
<p>1. The valiant little BBC fought hard for the public interest, but ultimately was cornered by the powerful private content-makers, and forced into signing away the public&#8217;s fair-dealing rights. Worse, the BBC can not even defend itself from the likes of  me, because those powerful content-makers have made every detail of those agreements confidential.</p>
<p>Poor BBC!</p>
<p>2. The BBC, under the leadership of people who sometimes come from and often later go to private media companies, have used the extensive resources available to it to re-shape the future of TV (which IPTV almost certainly represents). In particular, removing freedoms the public has held for many decades. Freedoms which private media companies have never been easy with, and which they find inconvenient in the digital world. The BBC  have justified this based on the deals the BBC has made with private media companies. Where those deals require DRM, the BBC has actively encouraged the addition of such terms. The BBC is conveniently able to hide these deals from FOI requests under the smoke-screen of commercial sensitivity, even though some of these deals will be with companies the BBC part owns or even wholly owns &#8211; BBC Worldwide most notably.</p>
<p>I don&#8217;t know which of these two extremes is more representative of what&#8217;s happened. The BBC won&#8217;t show me the documents that could allow me to tell! I suspect option 2 may be closer to the truth though.</p>
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