Greetings all,
I have looked through old posts as I am sure I am not the first person to ask this – but no luck. Hopefully someone can point me in the right direction please.
I was wondering how compression struts are attached in a typical 2 spar, ladder type, aluminum tube wing construction? Or put differently, what would be the acceptable way of building such a wing for a single place ultralight?
A wing such as the Airdrome Dream Classic is what I would be referring to. I assume the bolt goes through the spar into some sort of plug that sits inside the compression strut? This seems similar to the construction pictures I saw of a Graham Lee biplane although in these pictures the bolt head was aft of the spar and the thread pointing forward – which looked a little strange.
I have seen Mike Sandlin’s Goat and Bug plans but they have bolts drilled through the spar hang glider style – which is probably fine for the speeds, weights and lack of engine that these aircraft fly at. I assume that this is not the recommended approach for heavier, engined aircraft?
I have previously worked with wood and the use of aluminum was limited to making various fittings and brackets.
My thanks
CJ
I have looked through old posts as I am sure I am not the first person to ask this – but no luck. Hopefully someone can point me in the right direction please.
I was wondering how compression struts are attached in a typical 2 spar, ladder type, aluminum tube wing construction? Or put differently, what would be the acceptable way of building such a wing for a single place ultralight?
A wing such as the Airdrome Dream Classic is what I would be referring to. I assume the bolt goes through the spar into some sort of plug that sits inside the compression strut? This seems similar to the construction pictures I saw of a Graham Lee biplane although in these pictures the bolt head was aft of the spar and the thread pointing forward – which looked a little strange.
I have seen Mike Sandlin’s Goat and Bug plans but they have bolts drilled through the spar hang glider style – which is probably fine for the speeds, weights and lack of engine that these aircraft fly at. I assume that this is not the recommended approach for heavier, engined aircraft?
I have previously worked with wood and the use of aluminum was limited to making various fittings and brackets.
My thanks
CJ