Daithi O Buitigh Posted February 14, 2012 Share Posted February 14, 2012 Then you have the V/STOL humming bird which can fly backwards (try that for an aerobatic maneouvre) On the other hand, I remember watching a swan on a take-off run with the feet paddling like crazy in the water just to get the airspeed up Quote Link to comment Share on other sites More sharing options...
Wingman Posted February 14, 2012 Share Posted February 14, 2012 At my place of work I can lean on the handrail and watch large sea birds - Fulmars and Skuas I think - flying below me. They are obviously flying just for fun, skimming the surface and using lift from the waves, very rarely flapping their wings. You can see the tail working and also the feathers lifting on top of their wings when they get near the stall Quote Link to comment Share on other sites More sharing options...
Simon Chaddock Posted February 14, 2012 Share Posted February 14, 2012 PlummetI think the answer is if you have "computer" controlled full 3 axis variable geometry wings that also provide propulsion then you can do without any supplementary control surfaces. Quote Link to comment Share on other sites More sharing options...
John Sheehy Posted February 28, 2012 Share Posted February 28, 2012 That info is no longer current DH, Scientists have now decided that bees can fly. Quote Link to comment Share on other sites More sharing options...
PatMc Posted February 28, 2012 Share Posted February 28, 2012 A lot (most?) of hang gliders don't have any fin. Quote Link to comment Share on other sites More sharing options...
Plummet Posted February 28, 2012 Author Share Posted February 28, 2012 Posted by PatMc on 28/02/2012 21:16:31: A lot (most?) of hang gliders don't have any fin. ... but certainly with the flexywing ones the curve of the fabric gives it a lot of vertical surface. Plummet Quote Link to comment Share on other sites More sharing options...
PatMc Posted February 28, 2012 Share Posted February 28, 2012 ... but certainly with the flexywing ones the curve of the fabric gives it a lot of vertical surface. Plummet ... but no more than models with a lot of dihedral/polyhedral. Quote Link to comment Share on other sites More sharing options...
Seamus O'Leprosy Posted February 28, 2012 Share Posted February 28, 2012 Most ornithopters do not have fins or rudders either! Quote Link to comment Share on other sites More sharing options...
PatMc Posted February 28, 2012 Share Posted February 28, 2012 Posted by Seamus O'Leprosy on 28/02/2012 22:51:51: Most ornithopters do not have fins or rudders either! Looks like this thread has come full circle. Quote Link to comment Share on other sites More sharing options...
Plummet Posted February 29, 2012 Author Share Posted February 29, 2012 ... and most of those rubber powered ornithopters just fly in circles as well. P Quote Link to comment Share on other sites More sharing options...
Former Member Posted February 29, 2012 Share Posted February 29, 2012 [This posting has been removed] Quote Link to comment Share on other sites More sharing options...
PatMc Posted February 29, 2012 Share Posted February 29, 2012 ...but as I said a lot (most?) of hang gliders don't have any fin. Quote Link to comment Share on other sites More sharing options...
Myron Beaumont Posted February 29, 2012 Share Posted February 29, 2012 Eric Mine didn't ! But I know what you mean ,it;s like a small fin but underneath the wing . 'er indoors (doctor of biology /philosophy) says it is a pectoral fin like a fish Myron YO13 grounded dodgy hip dept Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.