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Human Powered Flight
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BarneyH View Drop Down
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Points: 439 		Post Options Post Options   Thanks (0) Thanks(0)   Quote BarneyH Quote  Post ReplyReply Direct Link To This Post Topic: Human Powered Flight
    Posted: 24 April 2012 at 2:10pm
An interesting piece for the amatuer engineers among us.
http://www.bbc.co.uk/news/uk-17754246
 
Considering the same guy tried to build a human powered hydrofoil last year he may be interested in what we do.
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Adrian Setter View Drop Down
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Points: 1606 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Adrian Setter Quote  Post ReplyReply Direct Link To This Post Posted: 24 April 2012 at 4:33pm

Saw the programme last night.  The thing that pricked my ears up was that they were estimating he needed to put out 350W to fly it.  I stand to be proved wrong but I don't rate his chances. 

Challenge Hurricane - MicWic Delta (Front half) - Burrows Ratracer
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Richard Ballant View Drop Down
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Points: 802 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Richard Ballant Quote  Post ReplyReply Direct Link To This Post Posted: 27 April 2012 at 2:50pm
A constant output of .35 HP or 262W is the ballpark figure for keeping an HPA aloft. That's constant, lift-off, climbing and turns need more power.

Interesting that a wing dipped but did not break. The Daedalus, which did 74 miles across the Agean, fractured a wing in mid-air when coming in for a landing on a beach, because of thermal difference between the air over the sand and the air over the water! Like the British Airglow, the new HPA seems to be made more robustly.

The blog comments for the film are interesting, because they suggest that fitting a shell around the rider would, as well as reducing drag, assist in countering rotation (dropping a wing).
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Yanto View Drop Down
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Points: 1521 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Yanto Quote  Post ReplyReply Direct Link To This Post Posted: 27 April 2012 at 4:36pm
I didn't notice any control surfaces. where there any?  If not using shifting body weight to control the thing i would have thought to be nigh on impossible when pedaling and with such a wingspan.

Edited by Yanto - 27 April 2012 at 4:36pm
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NickM View Drop Down
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Points: 1926 		Post Options Post Options   Thanks (0) Thanks(0)   Quote NickM Quote  Post ReplyReply Direct Link To This Post Posted: 28 April 2012 at 10:53am
Good for him. His enthusiasm is admirable Thumbs Up

Mind you, it would be a lot easier to get off the ground if he didn't have to take that bloody choir and orchestra with him... Are television programs these days considered incomplete without a "portentous" soundtrack churned out by some hack?
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