- Mar 21, 2011
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Are there any plans (or kits) for cardstock boost/rocket gliders?
Cool, but I’m thinking unlikely to hold up to a model rocket boost. I could be mistaken.
I always considered the Hummingbird to be made of a fiberboard material as opposed to cardstock. Was much heavier duty than typical cardstock. Note that it used wood strips on the tail booms for reinforcement.The Centuri Hummingbird was a rocket glider...
Depends on the rocket, it would probably do fine on a Big Bertha or Amazon as a parasite glider, you know a low and slow booster. But probably not suited to a pop-pod tractor motor type of RBG. The WhiteWings usually have a portion of the wing doubled up, so the leading edge portion is pretty well reinforced, you could probably simply add another laminate to simulate a wing spar to add some strength to help prevent it from bending under the loads during boost. To help reduce the lifting load, the parasite glider could be mounted slightly nose-down relative to the rocket so that it is oriented at its zero-lift angle of attack during boost, probably just under 10-deg or so. What makes these gliders perform so well is the cambered airfoils, the wings are not flat, so to help them retain that curved shape they are laminated and you kind of curl them before the glue dries to match a jig provided in the kit. Any delta wing planforms would probably be fine, but some of the typical wing planforms probably need to be laminated one or two extra layers of the card stock cut from scraps of the included sheets in the kit, maybe just a strip along the peak of the curve on the bottom of the wing. Adding carbon fiber to one of those might make it too heavy, but you could compensate by making the wing a little bigger.Cool, but I’m thinking unlikely to hold up to a model rocket boost. I could be mistaken.
Might be interesting to do a 137% 24mm version using lightweight 1/32" contest balsa papered with the printed templates. Think I'll try it, shouldn't be hard to do.