/sci/ - Science & Math

>>12137596
Hybrid motors? They're very niche, but they're easier to make than liquid propellant engines while being much safer than solid propellant motors. Useful for trainees and garage engineers.

>>11946716
Did that first accident really mess up the company that much? It feels like they've been in stasis after the first one.

>>11946735
Fair, but luck did play a big factor in SpaceX's early period when they were just a smallsat launch company with a rocket that hasn't flown successfully yet.

https://www.rocketmotorparts.com/Hydroxyl-terminated_Polybutadiene_Resin_12_Gallon/p1577809_15683131.aspx
Looking for rubber to use for a solid motor, and this is the best I can find. My question is that doesn't the resin need some other agent to turn into solid rubber, or does it "set" like glue upon contact with the air?

pic semi-related

Anyone know where to buy the mix for hydroxyl-terminated polybutadiene for rocket motors?