There have been a lot of improvement in both airplanes and helicopters throughout the years, but one area that has remained the same is the fuel tank. It seems I always have problems with leaks, poor fittings, broken fuel lines, etc. So, when I saw an ad for the RotoFlow Fuel System, I had to learn more.
The plastic tank is constructed of very strong material, at least that’s the way it feels. But the real improvements are in its design and metal parts. It works with both gas and nitro fuels, and uses a brass rotary pickup to ensure bubble free operation, with no internal hoses to break or leak, and requires no maintenance. It’s offered in three different sizes, but all have the same 3 inches outer diameter. Only the length changes to provide 16, 20 or 24 ounces of capacity.
I have not had the opportunity to try one of these tanks, but from what I can see it should be a great improvement over what we are using now. I imagine the 16 ounce should be plenty for most of our operation, requiring only small changes to the side frames to make it fit. When I retrofit one of my helicopters with this tank, I’ll let you know how it works. Or, if you install one in your helicopter, let us all know what you think. 
