ORIGINAL: wikman
Very easy...
A lot of fuel left in the 2,1 liter tank after 10 minutes

I would guess that you do not have a Flash... There is a small problem to use all the fuel in that tank.

We have found out that we uses half the fuel compared to a JC P120SE or JC P120 at the same flying time and type of flying.
Yes, I actually do have a Flash, with both a wing and main tank. I don't have problems using the fuel in the main tank, but I made a pleated paper filter pickup for my main tank that just about gets it all out.
As far as fuel consumption of your engine is concerned, its your engine and your data, so I'll take it with a grain of salt, but HALF the fuel consumption of a P-120SE?!? I don't think so. I read that the P-120SE was listed in RCJI as the 3rd most fuel efficient engine they've tested. Regardless, you'd have to be a genious to get that kind of improvement over a relatively modern engine without developing a turbo-fan...
As far as the Bandit is concerned, from what I've seen, the new Bandit ARF is not the same speed machine that the Super Bandit kit version is - but I will admit that I have not yet seen a Bandit ARF with a 120N engine in it. The Super Bandit with the P-120 is just about the fastest jet I have ever seen...
Bob