- Joined
- Jun 6, 2011
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Grain is highly over-rated, except in beer....
Measure once, cut twice.
Measure it with a micrometer.
Mark it with chalk.
Cut it with an axe.
If you don't have chalk, magic marker, whiteboard marker, powdered burnt propellant, or spray paint work just as well.
Dang, I was thinking a paint roller would work.
Measure it with a micrometer.
Mark it with chalk.
Cut it with an axe.
Static test each motor before use.
LCO's checklist:
1. Has the rocket been verified stable in a simulator?
2. Has it been swing-tested?
3. Does it look interesting?
4. Did the owner give you one of his beers?
If the answer to any of these is "yes", let it fly.
We once had an entire Civil Air Patrol group show up at a launch and every one of them had used hot glue to attach the fins. What a mess.To quickly build your rocket, hot melt glue works great.
Always keep your fingernails nice and long while working with balsa parts.
:bang:
Especially the lightweight "competition" balsa!
Except the nose cone, body, and fins. Those should be cast lead.Always use competition balsa for all structural components. It's for "competition", therefore it's better!
Scared your ejection charge is too wimpy? Stuff the tube with flash powder!
https://imgur.com/duG8PUN Stamped out serial number?
https://i.imgur.com/Pe4qft2.jpg
https://i.imgur.com/6mJDWiG.jpg
https://imgur.com/nvyfhyJ Bottom
middle to bottom
https://i.imgur.com/mDYuQxt.jpg middle to top.
Im leaning away from the APFSDS (armor piercing fin stabilizing discarding sabot) round. I just looks too old to be one and the weight and shape aren't right.
Im leaning away from the APFSDS (armor piercing fin stabilizing discarding sabot) round. I just looks too old to be one and the weight and shape aren't right.
Pre 1960 were people making their own hobby rockets out of steel?
Possibly this piece would have came down on a parachute and the back half would have been separated at the apex of the flight. It would have been at least twice as long and considering the material, it would have stood at least 3 foot tall in order to have enough propellant to lift it up. Thoughts on that?
Pre 1960 were people making their own hobby rockets out of steel?
Possibly this piece would have came down on a parachute and the back half would have been separated at the apex of the flight. It would have been at least twice as long and considering the material, it would have stood at least 3 foot tall in order to have enough propellant to lift it up. Thoughts on that?
Well, you can see what not to do...Start a thread about bogus tips and put it in the "Beginners & Educational Programs" forum where a newbie would never confuse it for actual good advice, instead of the "Watering Hole" where it should probably be. :confused2:
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