> 1/2A Speed: Many modelers are still interested in the small '/2A
> classes 1/2A Speed and Profile Proto.  If there are going to be any
> young, new fliers, those classes need to be encouraged.  However, there
> is a lack of good, reasonably priced .049 engines.

> I recently purchased a CS Chinese made engine with pipe, and hope to have
> it running next spring.  High-nitro fuel is still allowed in the 1/2A
> classes, and the CS engine is one of the few that can handle the hot
> fuel without self-destructing.  The engine crankcase is a sand casting,
> so it looks kind of rough, but some of the engines run quite well.
> Dave Hull has placed in Profile Proto at the Nats with his CS.

> The manufacturer plans to convert to a die-cast crankcase by spring, so
> if you are interested in getting one of these .049 engines. call James Zhou.

> The engine is a true ABC and doesn't need much
> rework, but there are a few things you can do to increase rpm.  The
> casting is rough, so look at it and clean up any flash or edges with
> your cylinder, if necessary.  You can relieve the crankshaft bore across
> from the intake hole to reduce drag on the shaft; just make sure you
> leave enough seal area for crankcase compression.  The ball bearings
> aren't of high quality, so replace them with new ones from Boca
> Bearings, and get a special head for high-performance plugs.  Then come
> and have fun with us! +

Remarks from James:
Thanks for Mr. Glen Lee, we are changing the head and improving the bearings.