(I don't think he built one for each of his grandkids.)
PS -- For more, see www.grantmaclaren.com/ralph
PPS -- Properly used, the iPhone takes pretty decent closeups, methinks.
Since you asked:
I'm going to guess the "block" portion is about 7 inches long. (I should have included a 25 cent piece, but forgot. Maybe I'll bring it home and shoot it again.)
It has a model airplane carb on the back. The intake is like a model "A's" in that it is "Siamese." (on the near side.) Fuel/oil mixture is sucked into the back of the crankcase (see below), then up via the two manifold tubes to combustion chamber. Four-tube exhaust manifold on far side. It runs good -- better than the 5 cyl. radial Ralph also built.
CLICK HERE FOR an 8 x10
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