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17608

Towing the GOAT "El Pelicano"

pelicano3 http://youtu.be/_qo8oIjj36c http://youtu.be/_qo8oIjj36c pelicano3 http://youtu.be/_qo8oIjj36c El Pelicano flight to 250 feet agl View on youtu.be
ferrerdallas
10:27 PM
#17608
 
17607

Re: BirdGlider, the new website of this Airchair.

Thanks, Steve. I truly believe that this short tail will work enough and if not ...we were already planning to solve it ...like you just mentioned. Indeed, we
Koen Van de Kerckhove
Mar 29
#17607
 
17606

Re: BirdGlider, the new website of this Airchair.

It's just too easy to get caught up in all the math and formulas. I've been flying gliders with no tail of any kind for 40 years. And they all had
harrier187
Mar 28
#17606
 
17605

Re: BirdGlider, the new website of this Airchair.

The shorter the distance between the elevator and the tail, the more elevator throw you will need... further you may need more up elevator to oppose the moment
doubd92
Mar 26
#17605
 
17604

Re: Digest Number 3429

I could be wrong but aren't aerofoils with a low or neutral Cm inclined to be symmetrical? By the the aircraft I fly at the moment has no tail plane, but I'm
Iain Vass
Mar 26
#17604
 
17603

Re: Digest Number 3429

... well, there are even tailless planes, aren't there ? And the "Pou-du-ciel" has even shorter tail. It all comes to the Cm of the wing. If you have an
Zoltan HUBERT
Mar 26
#17603
 
17602

Re: BirdGlider, the new website of this Airchair.

Hi Koen, Aerodynamics is not my field, but the sort coupling is not just a matter of rudder authority it can make the pitch control more twitchy and less
Iain Vass
Mar 25
#17602
 
17600

Re: BirdGlider, the new website of this Airchair.

It is not usual this short coupled tail. I wanted it that way to reduce overal dimensions. My team compared a lot of short coupled airplanes desings and
nestofdragons
Mar 25
#17600
 
17599

Re: BirdGlider, the new website of this Airchair.

The distance between the main wing and the tail seems very short, this is not an issue?
doubd92
Mar 24
#17599
 
17597

BirdGlider, the new website of this Airchair.

Hallo, i am happy to announce the new website. I hope you like what you see. Two prototypes are being build. A third is about to become official. Flight are
nestofdragons
Mar 21
#17597
 
17596

New file uploaded to Airchairgroup

Hello, This email message is a notification to let you know that a file has been uploaded to the Files area of the Airchairgroup group. File : /Quick
Airchairgroup@yahoogroups.com
Mar 14
#17596
 
17595

Re: GOAT Weight and Balance.

Good going with the new airchair! Your preflight balance procedure is what I used on the Goat 1,since the wheel station represented the aft most CG limit. I
ms7525
Mar 11
#17595
 
17594

Re: GOAT Weight and Balance.

... Ok, that does indicate the CG is too far back. Moving the seat forward, or using a thick but light back cushion is a good way to correct it. Brian
Brian Huffaker
Mar 11
#17594
 
17593

Re: GOAT Weight and Balance.

Again, I guess I did not explained myself clearly.. The GOAT drawings, indicate that while properly loaded, statically, wheel on the ground, if you set the
ferrerdallas
Mar 11
#17593
 
17592

Re: GOAT Weight and Balance.

... This can be calculated if the weight, CG and moment of the airfoil are known. But as the goat doesn't use a standard airfoil, this moment isn't available.
Brian Huffaker
Mar 11
#17592
 
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