Take any 3fnc rocket that is marginally stable and has both nose weight and fins... remove either completely (or mostly) and it's suddenly not stable.I think there's a really good balance of gds and nose weight here.
Take any 3fnc rocket that is marginally stable and has both nose weight and fins... remove either completely (or mostly) and it's suddenly not stable.I think there's a really good balance of gds and nose weight here.
So you are saying -- if its not broke don't fix it...Take any 3fnc rocket that is marginally stable and has both nose weight and fins... remove either completely (or mostly) and it's suddenly not stable.
Well, more that I feel it's currently a few things going on at once vs. just gds, etc. so taping off the lower intakes or removing all the weight isn't really going to prove that either is the single stabilizing factor unless either was applied in a neglible amountSo you are saying -- if its not broke don't fix it...
I’d be happy to take a crack at it. You could just send me the stl files.If someone wants to use this as a test bed for evaluating GDS I am happy to print a set of parts and send them to you.
I cannot afford that many E12 engines
No, apparently GDS only works as the motor is burning and thus pulling air in for combustion. However, I have always done a combination of nose weight and GDS so rockets don't just suddenly go crazy after the engine thrust stops.As always, I am late to the party. One question, does GDS continue to work once the motor is no longer under thrust?
Would be a short flight (kind of like a saucer), but how does it fly with a zero delay motor?
INTERESTING! Makes sense, if the rocket is unstable going up (once thrust ceases) it will continue unstable (rather than ballistic) coming down.I posted a different rocket build here that shows the rocket backslide after reaching apogee (I think it is easier to see in the 2nd view I shared).
Rocket engines to not pull in air for combustion, as you very well know. The exhaust plume pulls in air by the venturi effect or something akin to it.No, apparently GDS only works as the motor is burning and thus pulling air in for combustion.
Yea, in this case, GDS sucks, literally and figuratively.Rocket enginestodo not pull in air for combustion, as you very well know. The exhaust plume pulls in air by the venturi effect or something akin to it.
Just needs more power ...
I can't get enough ...Did you mean "cowbell"?
The flavor of a Pringle?I got a fever, and the onlyperceptionprescription is ….
If power and nose weight solves 90% of my problems, then GDS and base drag could take out at least 5% of the remainder. AND THAT AIN'T BAD!
I had to start with monochrome... Baby steps...I think you painted something. I'm not sure I've ever seen that before.
Had another very good flight today of another build with the eyes and 3D printed arms. I spaced this model in among the Viking launches from my younger kid's Scout Den. It was a very popular model with the kids! This is almost ready to go as a kit.
Thanks! There are actually 4 fins inside there now basically to bridge the gap between the two tubes.Have you tried putting fins inside the tail ring for the motor thrust to blow across?
Spin wouldn't help. A real bullet spins at 30,000rpm to get some stability.
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