Q40, Q500 Motor und Propeller

16.2.2 Powerplant
a. Engine
1) Maximum displacement: 0.403 cubic inch.

2) Configuration: Stock, commercially available, ABC, front-intake, side-exhaust. The cylinder liner shall be of standard three port Schneurle port design, incorporating no more than one exhaust port, one boost port and two side transfer ports. The head shall be machined to accept one standard long glow plug with a ¼-28 threaded body. The piston and liner must be removable. Integral cylinder/crankcase or cooling fins are prohibited. Domed pistons are prohibited. Crankcase must be one piece and must be a casting. Solid Billet or Barstock crankcases are prohibited. Bypasses cast into the side of the crankcase must be of essentially constant cross section and can only taper in area no more than is required for good casting practice. The top 1/8” of the bypass transfer ports may be tapered or shaped to match the cylinder ports. The boost port bypass may be tapered ¼” at the top. The removable liner must bound one side of all bypass channels. Notwithstanding the definition of “engine” in section 2 of these rules, substitution of the original crankshaft bearings with ceramic bearings or other types of aftermarket bearings from any source other than the engine manufacturer is prohibited. Bearings must be removable from the crankshaft. I.E., no integral bearing/crankshafts are allowed.

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Dj Nafets schrieb:

Ich hab da nämlich so ne Vermutung wo der Nelson LS auf einmal den Knall herzaubert. Um das zu bestätigen bräuchte ich die beiden Steuerzeiten.

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