Fins are about the least work.
Seems like any other method for spin stabilization would require lots
I'm not quite sure how a stick works for spin stabilization, anyway.
Canted fins are probably the easiest method to achieve spin.
Well, a within the past few weeks, this poster posted here and on
rec.pyro looking for plastic fin units. I would hazard a guess here is
talking of stabilizing a firework rocket (as that is the only place I
can see the stick comming in, too).
Rocketdragon, if your building fireworks, have you checked out stinger
You can use a few ideas. One is like the McDonnel Douglas DC-X. But
tht gets you lots of base drag and you Cg has to be far forward to get
enough stability. I hve flown 3 of my 28" tall DC-X models and using a
G80 its oretty good. altitude is only about 600 feet.
Other ideas are to use screens or wires at the base. the Soviets liked
to do this on thier N-1 as an example, like having a drag brake out.
Cut short sections of tube from the same material as your
airframe. Make them as long as or a little longer than their
diameter (between 1.0 to 2.0 times longer). Glue them to each
other and to the airframe at the base of the rocket, they'll fit
perfectly around the airframe, touching the airframe and each other.
They line themselves up automatically, no fiddling around to get
the fins lined up and perpendicular. And they're super-stable;
tube-finned rockets fly straight and true.
Full scale rockets would have some sort of active guidance, negating
the need for passive stabilization fins. On smaller things like
sounding rockets, tube fins would probably add more frontal drag and
weight than the designers would like.
Well, I don't know about "real world", but I have seen a large
(10' tall, 7" airframe) tube-finned rocket fly on M and N motors,
including the AT N2000 and the CTI N2500 - its liftoff weight on
an N was about 80 lbs.
Not surprisingly, a tube-finned rocket flies as straight and true
scaled-up to that size as it does in the model- and mid-powered
sizes. But the tube-finned design is draggy - those N-powered
flights only reached about 7200', IIRC.
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