OK boys, let's hope all the best for the float........ must try to know how it will work.
Unfortunately I am rather tight up right now, might not be able to test till another 60 over days......but.....
Don,
God to hear you are OK. Those EPIRB especially 406mhz type is surely a must. What boat are you buying next ? Insurance OK ?
The float Jim said is 20 liters worth of air and that is about 44 pounds of lift if my calculation is correct.
In the mean time, I will dive with it like how you see the first photo. I will never attach it on me, I got BCD and gauges, it might get stuck on me, too dangerous. It will dangle some 30cm below the gun. Since I hover mid water 95% of the dive, I hope it won't get entangled to any rocks. Since the MT5 is big, I hope the float with 2 x 68 gram C02 will not upset very much of the balance. Since I place the float on the butt of the gun, it might even help to make the gun better balanced. I have to try it in actual use.
Initially I was thinking to secure the float with some sort of velcro strap which I will install on the gun's wing but it will mean one side of the gun will be heavy. So I think first test will be like the photo shown. More experience in its use should be able to educate me better in the long run.
Actually if I have water to test in, I can make a shaft ( 5/16" ) with only one wrap of mono line, shoot it with 3-4 bands at nothing and see if the left over energy of the shaft will pull the parachute float and activate the C02 pull cord. A big fish on the end of the shaft will be of similiar pull.
Next possible test will be to tie a 30-40# lead on my Ice Pick slip tip, sink it in 100 feet of water and pull the trigger without any bands. The lead will sink the shaft and will pull the parachute float fast enough and will activate the C02 activator, in my theory of course. If the float is filled with air by the C02, the parachute float will open up at about 35 feet depth because that's the float clip position at the reel line + shooting line + the extra 1 meter of Kevlar line.
Will see if I can do some early "actual" C02 pull test. Will let you know.
Thanks - IYA