UTC SEDS 2017 3rd/ SEDS 2018 1st
- Sep 22, 2017
- Reaction score
I flew this RB-05A at VAST the other day after a university launch, it's very stable at a stability margin of 1.73 in OR, it handles stiff crosswinds nicely, leaves pad at decent velocity, and it had an empty weight of 2.5 pounds. There is a pound of lead in the nosecone as a modification since the stock rocket kit had -0.33 stability. Fully loaded is 3.5 pounds. The I300T-14A punts this heavy little guy a mile high basically in windy conditions. It sims for apogee at 16.6s on a good day. RSO helped me install a 550 Paracord shock cord on the range at his advice for longer length and it snapped anyways on deployment and that heavy nosecone slammed into earth from 5,400ft. I think it needs a thicker shock cord, but I don't have the experience to know how thick. I've got an IRIS 24" drogue and a RMS 38/480 casing. Other motor option is a 1299N, but I'm afraid of using the WARP9 since destroying a multistage rocket already with one this year, and having a deployment charge electronically explode next to hand on packing. Kit survived fall with no damage and I got the pieces back so its flying again someday.