On the topic of Speed limit combat, It is alive and well. So is 1/2 A. While the engines for 1/2 A may be a bit tricky to source, they can be had. The performance of them is kind of insane really. These 2 examples spin around 34,000 rpm. This is my latest 1/2 A combat design, the Super Attitudinal, a slightly larger version of the original. The new one was blown up in size to accommodate the more powerful engines.
Also, you will see my speed limit plane, the Fast Nimbus. The old Fast foamies make great speed limit planes, and mine are around 500 sq. in. I am converting them all to the ASP .25, which has become the engine of choice. We put a screw in the venture, so we can fine tune the speed. The engine on this plane in the pic is an old Mk 4 Fox combat special. It is a little too powerful for this event though.
