I don't mind the discussions and rabbit trails so long as the mods are okay with it. I posted these questions for the express purpose that everyone is posting here. I am greatful for all the insight I've been offered. I also enjoy the banter between those here that really understand what they are discussing. It is easy to see that becuase things are being explained in terms I can understand.

Actually, a few other questions I had have been addressed but I've been too embarrassed to ask. Now I am wrapping my head around those things as well.

Wow. I wonder if that is what I've been fighting.

Does a four stroke have more draw than a two stroke? This might explain why I've had better luck with them.

As per the per the SPA- again, trying to ask for help to bring that to this area is like asking for one's firstborn. I refer you to that 40 mile stare again... I like the piped 2 stroke on the front of a pattern ship. It just seems right to me.

Konrad-

With regard to the tank size, this is why I was really contemplating the pump. From my understanding, a 14 oz tank or larger could cause issues with the engine- leaning it out/fuel draw. The whole purpose of the pump is to counter this, am I correct? The fringe benefit to the pump is I can mount the tank further away from the firewall for more consistant flight in duration, which also frees up some room in the area for the front retract.

Going with a 14oz tank, would I be better off mounting a pump?

I realize you addressed this earlier, but it seems you have a better understanding of my goals now. So I hope you do not get frustrated with the reiteration of this question. If you think I would be fine without the pump, and a 14 oz tank, this is good too. I had a 12 oz tank mounted behind this engine with a stock set-up. The flight would consistantly last 10 minutes plus some change. I think I would like a little extra time for the UFO to get her on the deck again.

Brian