KR> Non-zero spar loads was Question on bent spars

The vertical shear spar loads will not drop to zero inside the fuselage, unless the seats are mounted to the longerons instead of to the spar as they normally are. The horizontal shear loads caused by the bending moments remain constant (not zero) inside the fuselage if there is no vertical load a

KR> Non-zero spar loads was Question on bent spars

Wesley Scott wrote: > The vertical shear spar loads will not drop to zero inside the > fuselage, unless the seats are mounted to the longerons instead of to > the spar as they normally are. The horizontal shear loads caused by > the bending moments remain constant (not zero) inside the fuselage if

KR> Non-zero spar loads was Question on bent spars

"Bubba" wrote: > Guess I didn't mention I'm mounting the seat supports to the floor and sides > of the fuselage ;) Half the cockpit (seat, armrests, headrest) is this foam > thing. I'll put some pics somewhere when the plans show up and I've had time > to build more than a mockup. I believe it wo

KR> Non-zero spar loads was Question on bent spars

"I believe it would be wise to put the seats on the spars, if at all possible." I think that Mark is being kind to use the word "wise". Seems to me that a 1/2 g drop as in a hard landing would place a sudden 100 pound load (assuming a 200 pound pilot) on the floor/side wall structure. The pilo

Réf. : Re: KR> Non-zero spar loads was Question on bent spars

M) Objet : Re: KR> Non-zero spar loads was Question on bent spars "I believe it would be wise to put the seats on the spars, if at all possible." I think that Mark is being kind to use the word "wise". Seems to me that a 1/2 g drop as in a hard landing would pla

KR> Non-zero spar loads was Question on bent spars

you posted: "I believe it would be wise to put the seats on the spars, if at all possible." I think that Mark is being kind to use the word "wise". Seems to me that a 1/2 g drop as in a hard landing would place a sudden 100 pound load (assuming a 200 pound pilot) on the floor/side wall structu

KR> Non-zero spar loads was Question on bent spars

Naw.. Orma's math was correct.. I think you were thinking of 1.5g's. 1.5 x 200 = 300... 0.5 x 200 = 100... or do I need to take math 101 again. But screw the landing... What about the in-flight forces :-) Drop the skid plate and grab a parachute! Not really the way I would want to egress.. Mat

KR> Non-zero spar loads was Question on bent spars

Matt said: Naw.. Orma's math was correct.. I think you were thinking of 1.5g's. 1.5 x 200 = 300... 0.5 x 200 = 100... or do I need to take math 101 again. But screw the landing... What about the in-flight forces :-) Drop the skid plate and grab a parachute! Not really the way I would want to e