Author Topic: Unusual Porting  (Read 4891 times)

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Offline 660magnum

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Re: Unusual Porting
« on: February 06, 2012, 08:17:47 pm »
Most of the newer design model airplane gasoline engines are reed valve designs.

The reeds are fiberglass and are usually two opposing each other in a pyramid shape.

The Chinese engines are not too sophisticated in the hand work department. The cheapest ones have "as cast" cylinder walls and bearing pockets. Naturally the transfers are as cast too. The quality and finish is nothing like Mahle.

The engine in the video above is supposedly made in USA. It is a Desert Aircraft 120 cc opposed twin with a single carb with reeds. I think it has tuned cannister mufflers? The company makes the same cylinder on a 60cc single with reeds.

The kid flying the plane is around 15 yrs old. His dad flies too.

Here are the reeds from a Chinese DLE 111cc twin



Here is the reed block from the Chinese DLE 55 single

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