Lakeroadster's Rock-A-Chute 2021
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Cool project. One question: the drawings don't seem to show enough room between the top of the engine and the parachute to include any wadding. Do you have a plan for not melting or burning the parachute, or am I reading the drawings wrong?
It gives me the (crazy?) idea of placing another piece of body tube between the dowels, but not attached, with a booster motor. Pick the length of the booster such that the launch stack looks like a normal rocket, then after staging you've got the Rock-a-Chute. With the lower CG I guess one might have to take artistic license to expand the fins a bit.
It gives me the (crazy?) idea of placing another piece of body tube between the dowels, but not attached, with a booster motor. Pick the length of the booster such that the launch stack looks like a normal rocket, then after staging you've got the Rock-a-Chute. With the lower CG I guess one might have to take artistic license to expand the fins a bit.
lakeroadster
When in doubt... build hell-for-stout!
Check out figure 4 below and the accompanying patent text where Orville Carlisle discusses protecting the chute. I'm going to try this, using crepe paper. That's one reason though why I made the body tube 1" longer... I want to use a 10" chute and have adequate space to not pack the chute to dense. I can always cut an inch off if I find I have plenty of space.
I'm trying to stay relatively true to Orville's design on this rocket..... but... that's a neat idea for a future variant. A fella could probably just tape a booster motor to the sustainer, and let it free fall, since they are 18mm motor's. I think that may have been something they did back in the day, if you look at the motor below that's a period correct piece in the Smithsonian.
For 'chute protection, yes, I see. Please make sure that the paper you make the end cap (52) from is flame resistant; Estes paper wadding is good. The patent description does not seem to specify what the parachute (46) is made of; I'm concerned that enough heat may penetrate the end cap (52) to melt it, but we shall see.
Regarding the booster, I envision it such that when it's removed you are left with exactly the rocket you're now preparing to build, unless the larger fins end up being needed; maybe removable nose weight could be added when a booster is used, in a way that is fully hidden. But that's a subject for another time.
Regarding the booster, I envision it such that when it's removed you are left with exactly the rocket you're now preparing to build, unless the larger fins end up being needed; maybe removable nose weight could be added when a booster is used, in a way that is fully hidden. But that's a subject for another time.
lakeroadster
When in doubt... build hell-for-stout!
The crepe paper I use is flame resistant. It states such on the package... and I tested it to be sure.
My plan to install some crepe paper it and compact it, using a dowel, so it's about a 1/2" thick plug and right up against the motor tube. Next, from the chute and hand conform more crepe paper to it's outside and bottom, then slide that into the tube against the crepe paper plug.
Note to self: Kevlar shock chord will be used, ran through a straw that spans through the motor mount centering rings, with a noose attached to the motor.
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shockie
High Plains Rocketeer
lakeroadster
When in doubt... build hell-for-stout!
I am slooooooooow. For me it's all about the journey, not the destination.
October Sky. Shoot down that new Red moon! A bit more power and we will catch those Ruskies.
lakeroadster
When in doubt... build hell-for-stout!
Autodesk Inventor.... The drawings are posted, make it your own.
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