David Ashby - Moderator Posted November 2, 2011 Share Posted November 2, 2011 Well, what can you say? He's flying it while holding the Tx! Thomas Senkel from Germany piloting the world’s first electric multicopter, powerful enough to hover for 90 seconds.....with him in it Edited By David Ashby - RCME Admin on 02/11/2011 07:59:10 Quote Link to comment Share on other sites More sharing options...
Vecchio Austriaco Posted November 2, 2011 Share Posted November 2, 2011 What a waste - think about the number of nice planes you could power with all these nice outrunners and batteries.... Actually the frame showed some kind of vibration s and torsion, I would not like to go on that (also for my weight class you need to install a few power units more...) Cheers VA Quote Link to comment Share on other sites More sharing options...
Terry Walters Posted November 2, 2011 Share Posted November 2, 2011 Well that's impressive! Not sure I would want to sit on it myself but having noted a remarkable similarity between the inflated ball support and SWMBO's swiss exercise ball I can probably get some practice in on that first! Well done to these guys - the true spirit of aviation lives on! Terry Quote Link to comment Share on other sites More sharing options...
Ben B Posted November 2, 2011 Share Posted November 2, 2011 I suppose the challenge is building redundancy into the system. Having so many motors is a good start (with quads if one motor dies you're in big trouble) but you would still have to have one ECU controlling the ESCs. If you had two independant ECUs they'd fight each other. You'ld probably need a system whereby there are two ECUs but the output of the first inhibits the second as soon as the 2nd ECU detects a failure of the 1st ECU it takes over. Something like a watchdog timer reset in effect. Then again for hovering a meter off the ground redundancy isn't so important. But certainly for anything higher I'd want back-up, I don't think multicopters autorotate that well- certainly not with any control! Or perhaps that's why the gym ball is for It would be like trying to land Tigger on a pogostick Quote Link to comment Share on other sites More sharing options...
Dave Towell Posted November 2, 2011 Share Posted November 2, 2011 Looks cool ! I now know what I want for xmas!!! Quote Link to comment Share on other sites More sharing options...
Pete B Posted November 2, 2011 Share Posted November 2, 2011 Nice design exercise but I don't think it will catch on - where would you put the tax disc? Besides, what was that about keeping out of the line of the prop? Pete Quote Link to comment Share on other sites More sharing options...
Josip Vrandecic -Mes Posted November 2, 2011 Share Posted November 2, 2011 I'm not impressed with "German- E - Volante" ...I experienced and better invention than this one....anyway Thanks David. Jo Quote Link to comment Share on other sites More sharing options...
Richard Harris Posted November 2, 2011 Share Posted November 2, 2011 We all know the dangers of standing in front of a model with a rotating prop or to the side, looks like he he sat in a prime target position if one of those props decides to let go Despite that, an interesting and very brave concept, thanks for posting the video David made me chuckle. I hope he's not using Spektrum radio gear! Ok, I will go and hide under the kitchen table! Long live the Space Hopper!! Rich Quote Link to comment Share on other sites More sharing options...
Stephen Grigg Posted November 2, 2011 Share Posted November 2, 2011 Just the bouncy ball concept going a bi further Quote Link to comment Share on other sites More sharing options...
Erfolg Posted November 2, 2011 Share Posted November 2, 2011 Was budget equipment used? I guess that it was 2.4 set? Would it not be better to have a hard wired control system rather than radio? Quote Link to comment Share on other sites More sharing options...
Biggles' Elder Brother - Moderator Posted November 2, 2011 Share Posted November 2, 2011 Well its certainly an acommplishment. And interesting in concept. But like Richard I don't think I'd want to be sitting there with all those "hedge trimmers" level with my kidneys not too mention other parts of my anatomy I'm rather attached too. BEB Quote Link to comment Share on other sites More sharing options...
Frank Skilbeck Posted November 2, 2011 Share Posted November 2, 2011 Posted by Erfolg on 02/11/2011 10:56:17: Was budget equipment used? I guess that it was 2.4 set? Would it not be better to have a hard wired control system rather than radio? At least he has no range issues..................... Quote Link to comment Share on other sites More sharing options...
Delta Whiskey Posted November 2, 2011 Share Posted November 2, 2011 Impressive first step as to what may be possible in the future ! - hold on a minute - I'm in the UK, there be red tape all over this sort of idea here, with licensing and tax to follow - you bet , not to mention the health & safety police ! Good on these pioneering folk ! Edited By Delta Whiskey on 02/11/2011 14:34:35 Quote Link to comment Share on other sites More sharing options...
John Privett Posted November 2, 2011 Share Posted November 2, 2011 It's certainly impressive, and hats off to them for doing it. But practical? No! As already stated, there is no redundancy in the thing at all. With a conventional plane, when (not "if"!) the motor fails, you can glide down, with full use of the controls, to a safe landing. Same with a helicopter - autorotating. At least as long as you keep out of the "dead mans curve" ie. low and slow. But with this... Both lift and control come through the motors and electronics. A simple failure will have you plummeting out of the sky faster than a very fast thing... Quote Link to comment Share on other sites More sharing options...
Seamus O'Leprosy Posted November 2, 2011 Share Posted November 2, 2011 Avro's version Edited By Seamus O'Leprosy on 02/11/2011 20:31:37 Quote Link to comment Share on other sites More sharing options...
Pat (rActive) Harbord Posted November 2, 2011 Share Posted November 2, 2011 Now that's big boys toys Quote Link to comment Share on other sites More sharing options...
Tom Wright 2 Posted November 2, 2011 Share Posted November 2, 2011 I have a secret urge to build a proper light aircraft powered by our hobby electrics and controled with a 2.4 tx but as Rich said not specy . An airframe weght of 150 lbs is easy to acheve thats a power requirement of 15 kw (could get away with less) may be 10kw 13-15 hp ....bring it on . As others have said the prop danger and extreme power to lift the machine in the video is not a very economical use of energy, and no back up if things go wrong. Quote Link to comment Share on other sites More sharing options...
Foamie Dave Posted November 3, 2011 Share Posted November 3, 2011 Hope he remembered to set his failsafe to cut the power Quote Link to comment Share on other sites More sharing options...
Richard Putnam 1 Posted December 16, 2011 Share Posted December 16, 2011 Anyone wanting to see the Multicopter video (January 2012 bottom of page8) The web address is e-volo.com NOT e-volvo.com It is definitely not a car! Great mag keep up the good work. RichardEdited By David Ashby - RCME Admin on 16/12/2011 10:25:10 Quote Link to comment Share on other sites More sharing options...
David Ashby - Moderator Posted December 16, 2011 Author Share Posted December 16, 2011 Thanks Richard Quote Link to comment Share on other sites More sharing options...
Olly P Posted December 16, 2011 Share Posted December 16, 2011 Yes, I am. BUT would wear full biker kevlar gear.... Quote Link to comment Share on other sites More sharing options...
Delta Whiskey Posted December 16, 2011 Share Posted December 16, 2011 Would love to give it a go, obviously keeping it low ie not more than 4 foot ! Quote Link to comment Share on other sites More sharing options...
David Ashby - Moderator Posted February 20, 2013 Author Share Posted February 20, 2013 Just by way of an update, it looks as if the folks behind this have ambitious plans. I spotted a model of their new project at Nuremburg.... ...and the website confirms Edited By David Ashby - RCME on 20/02/2013 07:35:50 Quote Link to comment Share on other sites More sharing options...
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