Preston:
No vent holes in the 4" tube that holds the main?
Here is what I do, For the Main I use a piston in the 4" BT that holds the Main.
- The piston gets attached to the main chutes D-Ring loop at the top of the chute via the quick link in the pic.
- On the underside of the piston is a small Blastcap
- An Ematch goes in the Blastcap with your BP & Dog barf and is then taped closed.
- The Ematch lead comes up through that small hole next to the Eyebolt and is connected to the terminal block on the top of the Av-Bay.
- Once the charge goes off the piston pushes the chute out breaks the small ematch lead and the piston remains connected to the chute.