These motors i purchased from a guy clearing out a storage unit so no idea of the condition they were stored in. It was only 20 bucks for about 15 composite motors and a bunch of rocket gear. Looks like the Aerotech composite motors are from the 90's. I tested 2 of the E30's, first one went great but second one just popped and my rocket on fire. The F motors seem to be unusable because when you look at the propellant through the nozzle its swelled and you cant fit an ignitor in. What would you do with them lol