I am building a PML Pterodactyl Jr. Four inch diameter, Quantum tube pre-slotted, G-10 fins, 38 mm engine mount, all very nice. The kit comes with a piston ejection system. But I like baffles. So finally, a question: Should I use the piston ejection system, or should I install my favorite baffle?
The pistol ejection system employs its own shock cord. One end gets epoxied to the motor tube, then forward through a slot in the forward centering ring. The other end goes through a slot in the piston bulkhead, through a D ring, back through the slot, and is then epoxied to itself. This shock cord is long enough for the piston to be pushed completely out of the body tube. Is that how it is supposed to work? This seems to make sense to me; the piston out of the body tube would facilitate cleaning the inside of the Quantum tubing and the piston itself.
Use of the piston system would, however, remove any possibility of using rail buttons. The head of the T-nut would prevent the piston from traveling any further forward. I do have some stand off rail guides I could epoxy to the tube. I could still use a 1010 rail.
Your suggestions will be appreciated.
Bob in Phoenix
The pistol ejection system employs its own shock cord. One end gets epoxied to the motor tube, then forward through a slot in the forward centering ring. The other end goes through a slot in the piston bulkhead, through a D ring, back through the slot, and is then epoxied to itself. This shock cord is long enough for the piston to be pushed completely out of the body tube. Is that how it is supposed to work? This seems to make sense to me; the piston out of the body tube would facilitate cleaning the inside of the Quantum tubing and the piston itself.
Use of the piston system would, however, remove any possibility of using rail buttons. The head of the T-nut would prevent the piston from traveling any further forward. I do have some stand off rail guides I could epoxy to the tube. I could still use a 1010 rail.
Your suggestions will be appreciated.
Bob in Phoenix