QCR flop wing retention system

[Rktman]

Anyone have one of the old QCR diagonal flop wing gliders and know how the wing retention setup worked?

 

[caveduck]

I think I see a guide pin on the side of the pylon, so I'd imagine that the wing release was a pretty simple burn thread.

 

[BABAR]

It was a burn string, can’t remember the routing exactly.

This was the rocket that taught me the double tape hinge technique.

When I added sewing them in with dental floss, it became my major helicopter hinge technique.

 

[Rktman]

Thanks guys, appreciate the feedback.

 

[Rktman]

I think I've figured out how the retention system worked. If you look closely at the area circled in this shot from a 2002 Sport Rocketry mag issue, there is an L-shaped piece of music wire attached to the wing. A burn string passes over it and holds the wings folded back. Very simple but effective method. I tried it on my old prototype and it worked well; routed thread from the motor pod burn holes back down over the music wire hold-downs, then back over to the other side of the fuselage through a wire loop. It holds the wings in place securely.

I'm definitely going to use this method on my version #3 (version #2 which I just finished uses a more intricate method with more fiddly bits).

 

[Rktman]