Back to fixing up giveaway rockets.
On the Monarch, I’d hoped not to have to do anything about the upper body tube but that was wishful thinking. I twisted it a bit too hard trying to see if the nose cone was glued in (it was) and it collapsed.
So I cut the tube loose and replaced it. But rather than just gluing a piece of tube on, I figured, what’s cooler than a free rocket? A free rocket you can stick a borrowed club altimeter in. So I punched a vent hole and drilled a hole into the nose cone for a screw.And of course I glued the transition to the other end.
I pulled out the remains of the shock cord mount. I still have to replace that, and then do some painting.
As for what used to be a Mongoose sustainer, first I dealt with motor retention. I didn’t like the thought of friction fitting for a kids’ giveaway rocket, so after considering a few other options I decided to go with an external hook. I re-bent the finger on a standard hook to give it a longer reach…… too long, in fact, on the first try; I cut it back some. Then I mounted it to the body tube with some electrical tape and CA.I sanded down the runny paint job on the balsa nose cone. … balsa? That’s not standard for a Mongoose. Neither’s the payload section, which looked pretty grubby.But I figured as long as there was a nose block there I might as well use it. The screw eye was loose, despite being glued in. So I replaced it with a bigger one with coarser threads, which should hold better.
As for the scratch rocket I’ve donated a nose cone. Quick sim indicates it’s actually overstable; no surprise really with those big fins. I decided to fill them with CWF, but the more I think about it the more I think I want to truncate them. Otherwise it’ll weathercock like crazy and the fins will probably break on landing.
The Athena I think I’m just going to repaint.