The tank is a 330 ml water bottle fitted with gas fittings I sell. If you need some shooot me an email at [email protected]. Very inexpensive and functional. The gas tubing is tygothane from McMaster Carr. But for convenience, I carry this too. Much less expensive than the yellow stuff and stays flexible inside the tank and out.

I had been running a 240 ml tank previously and it gave around 12 minutes of run time, not quite enough for 2 Masters schedules back to back. Also used a 550 ml tank and that allowed 25 minutes flying which made my flying buds b..i..t..ch too much.....LOL! Electrics...Bah Humbug!!

Note the hole in the firewall. That helps equalize pressure for the carb so no carb issues are encountered. The firewall is standard 1/4" cross grained balsa laminated with carbon cloth on both sides. This has been covered extensively before so I won't go into any detail. Plenty strong and super lightweight.