The guy I got it from had it in a Hotspot and said he got 10 minutes of flying time out of a two liter tank. Two liters would be 65 ounces, right? He may be a little optimistic, or the hotspot does not need much throttle. Or he is talking about flying the tank out, which is not really realistic.
I would feel more comfortable with more flying time, as the seven minute mark is sometimes the point at which my knees stop shaking and I start enjoying the flight!
Actually, I like to fit big tanks into my models. Call me a frequency hog. I just have always thought that most problems with models happen during the takeoffs and landings, so the longer I am airborne, the longer I can avoid those two particualar problems!
But, the additional tankage to feed a turbine for the kind of duration I like may translate into quite a few pounds of extra weight. No free lunch...
How much tankage would I need to carry to get ten minutes and some safety margin? This is the full auto-start version, so I guess I can spend less time on the ground putting the hatch on and stuff...
Curtis
Tony...one more thing...
Would it be convenient for you to measure the wing-root tanks of the Bobcat, dimensions, not capacity? I am building a Mick Reeves Venom, and he shows two British windsheild-wiper fluid tanks, and the bobcat tanks might be a lot neater if they will fit....
If you cannot get to them, it's no big deal. I'm not that far along yet...