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Wacky homebuilt ultralight from France

Posted By:
Dan Grunloh
Homebuilder or CraftsmanAirVenture Volunteer
66
Posts
25
#1 Posted: 10/13/2010 15:34:23

 “ULM artisanal Essais au sol”  (microlight craft ground test) captures the spirit of do-it-yourself aviation.  Could this possibly fly?  http://www.youtube.com/watch?v=9VA1W3XUXXQ

 




Dan Grunloh
Homebuilder or CraftsmanAirVenture Volunteer
66
Posts
25
#2 Posted: 10/18/2010 12:32:16

 I wish I could I understand French.  I ran the comments posted on YouTube though an online web translator.  The builder said the design is still  "crashing during ground runs".  It's a good thing  because the front bicycle wheel is not likely  to withstand typical landing loads.  Of more interest to me is if the craft could actually be turned in the air.

Weight shift trikes work in part because of differential washout and billow shifting due to the floating crossbar.  This rigid wing craft has no tip rudders like a Kasperwing.  Would pure weigh shift turn this thing?  The only comparable wing I can recall is the Hang Loose glider by Jack Lambie.  It didn't work.

 



Bill Berson
Homebuilder or Craftsman
106
Posts
19
#3 Posted: 10/18/2010 13:04:57 Modified: 10/18/2010 13:08:33

The wing spar seems to lack a shear web as far as I can see.

At least it started on the second pull.

 


p.s. I built a Jack Lambie Hang loose. It worked once. Scared me enough when parts fell off after liftoff to ever try it again.




Neal Miller
IAC Member
23
Posts
4
#4 Posted: 11/3/2010 06:11:20

Wow!!

Gotta give the dude credit, he's actually homebuilding vs assembling. And he sounds like he's having fun.

That prop even looks handcarved!

Don't think I'll order one just yet, though.
wink



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