Ground Testing

[Jonsayler]

Hey guys, I am about to ground test my Level 3 rocket which has a 98mm motor mount tube. I need to plug the motor end obviously but what have you been using to do this the best way. I do not have any motor casing to plug it with...Ideas? TIA

 

[David Schwantz]

Round piece of ply that fits over the MMT on the inside. Rags shoved up the back end and then taped over to hold them in place.

 

[mtnmanak]

You don't need the inside cover, just plug up the aft end (rags and tape is a good suggestion). If you can eject the laundry when the MMT is empty, you know it will work when it is filled up with a motor.