825 V 750 Engel tank
I put in the 825 tank because I could.
The metal mech tray allowed the bigger tank to fit.
I use the extra tank capacity to set the boat perfectly on the waterline without messing with lead ballast.
I can allso take the boat right under , or any level I want as the tank is fully preportional.
From what I have read the 750 is perfectly ok fpr static dive ,but the bigger capacity just gives me more flexibillity.
Working torpedo setup
I have finally managed to fit in my version of airbrush proppelant powered torps.
The torps are alloy tube with alloy valves for filling and ptfe noxxle at rear.
I was going to use a valve arrangement but tried the pin method first , it works fine for me.
Torps are fitted with the pins ang given a liquid charge.
Pushed down the tubes and the pins clipped onto the servo links , ready to go.
I used a Futaba servo , warerproofed with epoxy and a viton "o" ring under the servo arm, Seems to work fine.
Fired the system on dry land and the torps exit the tubes with quite some speed.
Torps tested in circular test pool ran for arround 15 seconds on a liquid charge.
All that remains now is to test the whole plot in the local pool , when I get the chance.
I will try to get some pictures of the event.
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