Watching Algy Yates build his craft is amazing. The optimizing done to use so little wood and yet produce a very strong rib is amazing. You guys are truly dedicated to what you do. When you come from an engineering world where everything is beefed up "just in case" it takes a bit of getting used to to look at such components and get past their "flimsy" look at first. I'm amazed truly.
Hey Dave, I like what you guys are doing! I haven’t been following your design efforts closely but let me throw a little ice water on your landing gear design: you need to have a compression member that can resist side loading or else you run the risk of folding the gear under. It looks to me like your transverse diagonal strut is too long and thin to resist buckling. If this strut buckles, you could have a gear fold under during side loading. Please ignore this comment if you’ve already evaluated the side loading case.
We have incorporated special brackets into the upper channels that are designed to resist side loading. These have been computer modeled and have had a FEA analysis done. We just passed with a single bracket on each side and so decided to put 2 on each side to attain a better than 1.5 x safety factor.
What is the likelihood of one of the 2 seaters being able to take on an 80's Honda Goldwing engine? I'm aware it would take a hell of a lot of configuring. That I'm sure I could work out. I'm more concerned if it would be too much engine or not.
Watching Algy Yates build his craft is amazing. The optimizing done to use so little wood and yet produce a very strong rib is amazing. You guys are truly dedicated to what you do.
When you come from an engineering world where everything is beefed up "just in case" it takes a bit of getting used to to look at such components and get past their "flimsy" look at first. I'm amazed truly.
Thanks for the kind comment
Hey Dave, I like what you guys are doing! I haven’t been following your design efforts closely but let me throw a little ice water on your landing gear design: you need to have a compression member that can resist side loading or else you run the risk of folding the gear under. It looks to me like your transverse diagonal strut is too long and thin to resist buckling. If this strut buckles, you could have a gear fold under during side loading. Please ignore this comment if you’ve already evaluated the side loading case.
We have incorporated special brackets into the upper channels that are designed to resist side loading. These have been computer modeled and have had a FEA analysis done. We just passed with a single bracket on each side and so decided to put 2 on each side to attain a better than 1.5 x safety factor.
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Excellent. The brackets weren’t obvious in the video. Thanks for the quick reply!
Nice landing gear test! Are the springs dampened?
No. We have no spring damping. The test showed that it isn't necessary. The bounce dampened out in 1.5 cycles or so.
What is the likelihood of one of the 2 seaters being able to take on an 80's Honda Goldwing engine? I'm aware it would take a hell of a lot of configuring. That I'm sure I could work out. I'm more concerned if it would be too much engine or not.
The limit is about 200 lbs of firewall forward weight.
Holy smokes. I could put an enormous motorcycle engine up front then.