I was just reading the Gremlin 1/2A pattern plane article in the May ’75 issue of Model Builder by Tom Dixon, and it says the plane flies on a Cox “stunt special” engine. The “stunt special” is a TD .049 with a Babe Bee piston/cylinder and a low compression glow head, a Kirn-Kraft NVA, and turning a Cox 6x4 prop on 5% nitro fuel from a Perfect wedge tank. Tom says this pulls the 12 ounce model through the entire stunt pattern. The KK fine needle would be the only thing I would have associated with “performance”. A low compression head topping a single bypass/no boost cylinder with SPI doesn’t scream “performance”. 5% nitro on a 1/2A doesn’t scream “performance”. A TD on suction from a standard plumbed wedge tank doesn’t scream performance. And a Cox 6x4 doesn’t scream “performance” (unless you’re propping for torque). And we all know Cox TD engines were made to scream.
What exactly am I missing on this?