Interesting.  What are the rules?  Could you make the rolled-tube version push-pull?

OK, so this is not quite free since it flies around a pole but it still fits here.

Here is the preliminary drawing for The Speed Merchant, my Round-The-Pole rubber powered speed model, for the contest at Duarte on February 16th.  Before I cut wood I'm considering moving the wing to the bottom of the fuselage.  the tether wire will go from the right side of the fuselage, embedded in bottom of the wing about half way between the leading edge and the spar, to the left wing tip where it will have a loop.  Will test both two and four blade prop.  If other obligations permit I will have both the built up fuselage and rolled tube versions ready for test flying at Duarte on January 19.