here are some of the other ones I've put together. all are scratch built with
the exception of the Aura (checker fade paintjob)

Very nice work. That thing should be bulletproof :D. How much does it weigh?

Those are some nice rockets! Very nice work getting the pics posted in the forum too. Well done.

Warren

not sure on weight yet, as soon as it's done I'll take it to the post office and get an accurate figure. PML says something like 52oz, so we'll see how my pig compares; I used some pretty thick CF, and I know it soaked up quite a bit of resin (will definately use epoxy next time).

anybody know how much a J350 reload and casing weigh? I will need to add nose weight to adjust CG.

cheers, will have more photos as it progresses.

If you've got Rocksim, the motor weight will come out in the sim. Both propellant and casing.

Warren

(will definately use epoxy next time).

Did you not use epoxy?

As for motor weight, a J350 is a bit over a pound IIRC. If you're using rocksim though, it will take care of it. I doubt if you'll need noseweight with the 6 fins, but it's hard to say. Interesting how you put CF over the nose cone too - that's one cone that won't be coming off 😆

What weight of carbon is that?

I used polyester resin, had a bunch laying around the shop. It smells 10 times worse than an epoxy. The CF cloth I used was a 6 oz twill (I think), again it was some material we had laying around our shop.

The nose cone is definately not coming off; which may be a mistake in hindsight if I need to add any more nose weight, but not totally impossible.

It's been progressing well. I will have it all done by Mile High Mayhem.
😀

I actually don't have rocketsim, I had a trial version, but it expired.

Anybody in/around Denver got a copy I could borrow?

Polyeter resin can work ok,, But it does not have the great bonding strength of epoxy. Ive done lots of Fg work for years (lots of it on cars and boats as well as rockets) and used the PR and not only does it smell worse and not have the strength (its also a bit more brittle when cured) as epoxy does, But the alphatics and such it puts off are very toxic and can create allergies to it easier then epoxys can.

that is all correct; epoxy is definately better than polyester for CFRP. was one of those situations where it was available and free...hard to pass up 😀

got lots of sanding done, looking good now, will have photos later!

updated photos, almost ready for paint! (white paint is to identify high/low spots)

Looks pretty damn good to me!

Warren

Looks VERY nice, and even though you did use polyester resin (never used the stuff honestly, so I can't say much about it), it should be more than strong enough for the I600 for L1 and the K1445 for L2, right 😉 😆

On a slightly more serious note, it looks great, and it should fly really well on a decent I or J motor for the cert flights. Good luck.

it will definately be good for L1 and L2.

I learned a lot and the next one will be better, but that will be a while from now...don't need to be thinking about another one just yet; need to FINISH this one!

As for motor recommendations; I've got the PML datasheet, and found a copy of RocketSim to use...does anybody have any suggestions of where to start? I'm debating Cesaroni or Aerotech RMS...Cesaroni's are just so nice and easy while the Aerotech and all the motor casing clones that use Aerotech reloads are super common but a little more finicky loading the grains.