ceo.of.leeland
New Member
Originally I was going to go with G10 Fiberglass Fins but since i'm on a budget my group leader wants me to find a cheaper option and I stumbled upon the 4" PAC-3 Aft Fin form Madcow Rocketry (https://www.madcowrocketry.com/4-pac-3-aft-fin/ )but I'm not sure if the material could withstand an L550 Rocket engine form HyperTek.