Rockets

[Oblio]

Forgive the sidejack, but this is the edition I read. Mr. Stein was (is?) also a prolific sci-fi author.

https://www.amazon.com/dp/B00BQ9QOXQ/?tag=ff0d01-20

 

[Back in the fold]

Ooh ! Copyright 1967. That's got to be good @Oblio . That was my heyday for model rockets , late 60's early 70's. I remember when Estes came out with the "D" engine and now they have "E" and "F" before you jump up to high power. Need a lot of open ground for recovery with those I bet. I successfully flew a three stage but couldn't get the hang of Boost Gliders. Aerodynamics are tricky and precise . No room for by guess or by gosh.

 

[Oblio]

Yep, the mighty "D", my first was the 'Goblin', took a heaping helping of allowance to fire that one off.

Have you seen the low impulse amateur rockets with gimbals that have a much better scale WRT velocity, rather than going "SWOOOSH!"?

 

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@GaryE will eventually bring us back around on topic but since this thread has been turned into a model rocketry thread , so be it. My first "D" was the pointy nosed Cherokee D . That one was a great flyer. Almost as good as my Astron Sprint with a C6-7 in it. Never have seen or heard of low impulse rockets but it would be nice to actually see them fly off the pad instead of hearing the whoosh and then craning your neck and squinting into the sky to try and spot a speck of nothing two thousand feet away.

 

[Oblio]

@GaryE will eventually bring us back around on topic but since this thread has been turned into a model rocketry thread , so be it. My first "D" was the pointy nosed Cherokee D . That one was a great flyer. Almost as good as my Astron Sprint with a C6-7 in it. Never have seen or heard of low impulse rockets but it would be nice to actually see them fly off the pad instead of hearing the whoosh and then craning your neck and squinting into the sky to try and spot a speck of nothing two thousand feet away.

At one time there was a kit that contained the electronics, sensors, and servos, but it was out of production. With todays inexpensive microcontrollers and sensors it would be pretty easy to design your own. The interesting part is that it is illegal to program a rocket to guide to a particular point in space, which in essence makes it a guided missile. It is legal to provide stabilizing guidance controls.

 

[Oblio]

Not the same company, but check out the video at this link

Thrust Vector Control 3D Files

Developed over 3 years of iterative design with over 40 successful flights, this thrust vector control(TVC) hardware is used in nearly every BPS.space model rocket. What's Included STL gimbal files TVC airframe cut and drill templates PDF instructions for assembly

bps.space

 

[Oblio]

Falcon Heavy

BPS.Space

bps.space

 

[Back in the fold]

Model rocketry has advanced to unheard of levels today. Amateur rocketeers are going into orbit and putting up satellites. Take a look at high power rocket videos. Amazing isn't even the word I would use. Slowing down the video has exposed fin flutter , that when corrected , made even higher velocities possible. Ever hear of the Ansari X Prize ? Guys chasing that are modern day Von Brauns.

 

[Oblio]

Amateur rocketry ranks up there as one of the potentially most expensive hobbies/sports- "I had to give up unlimited Air Racing to support my rockets"
A interesting sub-genre is model Water Rockets.

Sorry Gary

 

[Back in the fold]

The worst part is that the really fun stuff is so dang expensive.

 

[Oblio]

I may just have to build something. Start off with a simple instrumented rocket to explore onboard sensors, but it may be a 401k busting rabbit hole

 

[GaryE]

You know, fishkeeping isn't rocket science...

 

[Fishmanic]

The only rockets I've launched are water rockets which you pump up with air. It was like $5 when I was just a yute. And bottle rockets

 

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I may just have to build something. Start off with a simple instrumented rocket to explore onboard sensors, but it may be a 401k busting rabbit hole

I hear you Man ! Maybe the Saturn 1B I've always wanted. It runs on a three "C" cluster.

 

[Oblio]

The only rockets I've launched are water rockets which you pump up with air. It was like $5 when I was just a yute. And bottle rockets

Me too! White body with a red tank, spin stabilized, launched off the pump.
I think my kids built some proper water rockets in Middle School.