bobdabilduh55
Wanted to do the Horten America Bomber and some how ended up with a wing eight-feet long ( 2.4m) .
First flight proved i did not have enough carbon rods in her wings. That resolved i went on to her trim issues. Finally got her to fly.
Heres are a couple of her build pics and one with my 5EZP Ho-229 i recently built.IMG_0294.jpg  IMG_0295.jpg  IMG_0296.jpg 
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bobdabilduh55
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bobdabilduh55
"Five Easy Pieces"
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bobdabilduh55
"Five Easy Pieces"
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bobdabilduh55
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Lgel
Impressive build! this one wouldn't fit in my car. Seems very pitch sensitive compared to the HO 229 I built with your plan.
Congrats and cheers.
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solentlife
Definite Brown Trouser moments there !! 

I'm sure this is no exception to the 'reflex' and serious expo needs !! 

Watching the maiden reminded me of first flights I had with my Teksumo !!  
I'll fly anything if I can launch it ! Youtube : solentlifeuk
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bobdabilduh55
Lgel wrote:
Impressive build! this one wouldn't fit in my car. Seems very pitch sensitive compared to the HO 229 I built with your plan.
Congrats and cheers.
She really is a pussycat once you get her trimmed out. 
I am currently building a 72" version. This eight-footer is just to much to haul around. She will have a foot more wingspan than the 229. 
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bobdabilduh55
solentlife wrote:
Definite Brown Trouser moments there !! 

I'm sure this is no exception to the 'reflex' and serious expo needs !! 

Watching the maiden reminded me of first flights I had with my Teksumo !!  


Watch the later flights. she is tamable and rather majestic in her turns. 
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Lgel
You make some comments about ailerons on an another of your builds. I also read many times that ailerons that run to the wing tip favour tip stalls, but I fly an aerobatic slope glider (Vagabond XL) with no dihedral, enormous ailerons that run all the length of the wing with a width close to half cord, and huge travel.

And guess what, no tip stall at all, a 2m glider that can roll in one second, turn or loop on a dime, and is easy to fly as a beginner plane (even if not recommended for them). Simply no auto stabilizing in flight due to it's extreme manoeuvrability, so it requires to be piloted at all time.

So...

Cheers.

Ailerons Vagabond XL_1.jpg 
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solentlife
Tip Stall - the term is frowned upon as I heard in the real world. It does describe the result of wing drop due to loss of lift at the tip ... but fails to explain why.

Washout is difficult to maintain with full span ailerons as the twist can in fact work to advantage one way but disadvantage the other. Think of the roll action.

Say you want to roll right ... left aileron goes down but the washout reduces the wing tips 'droop' allowing that tip to maintain more % lift than the root of the aileron / wing. Now look at the right aileron and that washout is INCREASING the reduction lift out there to a greater % than the ailerons root ... its OK if speed is sufficient to maintain wing ... but let the speed drop a touch and that right wing will lose enough lift at the tip to drop. I am avoiding using the word stall deliberately as it has not stalled ... its just lost enough lift to drop more than the roll action you called for.

As to the Slope Soarer ... usually most soarers have higher aspect ratio wings than most meaning lift is spread more along the extra span.... and of course you have generally lighter wing loading.
I'll fly anything if I can launch it ! Youtube : solentlifeuk
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bobdabilduh55
You make some comments about ailerons on an another of your builds. I also read many times that ailerons that run to the wing tip favour tip stalls, but I fly an aerobatic slope glider (Vagabond XL) with no dihedral, enormous ailerons that run all the length of the wing with a width close to half cord, and huge travel.

And guess what, no tip stall at all, a 2m glider that can roll in one second, turn or loop on a dime, and is easy to fly as a beginner plane (even if not recommended for them). Simply no auto stabilizing in flight due to it's extreme manoeuvrability, so it requires to be piloted at all time.

So...

Cheers.

Ailerons Vagabond XL_1.jpg [/

Thanks for the encouragement Lgel. The extending the ailerons did help their authority.
QUOTE]
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bobdabilduh55
The eight-foot Ho-18 was fun to fly but a pain to haul around so i built a six-foot version ( 12" bigger than my Ho-229)  I've also reinforced the wing better so flying fast won't cause flutter. She is powered by a GH SUPER-SONIC motor with a 6x4 prop and 40A ESC. I'm also using the same two servo with onboard mixer set-up i used with the Ho-229.
IMG_0300.jpg  IMG_0302.jpg   
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Lgel
Nice one!
Cheers.
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bobdabilduh55
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