Pretty much if there's a parachute then it's a legal hobby rocket. As to the rocket that goes unstable I'd bet it needs a longer stickI'm not sure if this is against the safety code, but has anyone attempted to make a stick guided rocket before? Stick guided as in the rocket attached to a stick like fireworks, but with a recovery system instead.
After exploding several FSI F100's I made a bottle rocket from the last one, packed a bunch of black powder and Roman Candle balls from a broken firework. It was the only F100 that actually made it to apogee....I made a few stick rockets in the early 80's. D12-0's taped to three foot long 1/4 inch dowels. They worked great and were mostly stable.
Stick needs to be at least 3 times the lenght of body and nose cone. (from history channel, Ancient Discoveries, Chinese Rockets)
3x or 5x times. Killing me here! Anywhoo- the rocket in the pic has fins. Not a TRUE stick in the mud rocket.The one picture I seen on this thread the stick is way too short. The stick should be at least 5 times as long as the rocket to be effective.
We have several fireworks guys that post here, too. That looks to be a legitimate firework, they can be ignited pretty much anyway they want. They have their own NFPA Codes that have no relationship to rocketry and yet they have rockets, too. It's just they generally explode instead of returning under parachuteAlso fuse ignition is against the safety code... not sure about the ejection charge part. Someone could probably say that the overuse of ejection charge was a deliberate attempt at getting around the explosive payload thing... but who knows, some people may accidentally use a whole pound of Goex for ejection charge....
Awww, heck, no, that's a junk rocket. built as cheaply as possible because they knew it was going to blow up. The airframe of my 3rd level rocket was under $30 and I built it pretty stout, made it from PVC drain pipe. Rocketry can be done on the cheap.That must be what, 1000 dollars in hardware?
Sure it will, my conformation (not certification) rocket is also PVC and 21 years old and I would have no problems loading a J350 in it anytime, Secret is scuffing the surface with very rough sandpaper, like 60 grit rough. This raises a "tooth" for the epoxy to grab. There's no hint of separation between the epoxy and PVC.I wonder about PVC pipes... How do you glue it, or even get paints to stick to it? Epoxy will not stick to PVC.