When I was a kid, my father introduced me to model airplanes.  At the time control line models were in their late infancy.  They had been around for a while but were not very sophisticated.  Some of my dad's stuff still had the old gasoline/ignition engines.  I grew up in the "glo" age.  These engines ran on "hot fuel" and required no onboard ignition system, batteries, switches etc.  Those parts were heavy, troublesome and expensive.  I got pretty good at flying "controliners" and even had moderate success flying competitively.  My favorites were "combat" and "stunt".  Combat was a gas, as each of two very fast/maneuverable airplanes attempted to cut 12 foot streamers trailing from the other's tail to score points.  It was exciting to watch, fun to participate and very destructive to the models.  Stunt was an effort to fly a predetermined series of maneuvers or "pattern" more precisely than your competitors.  I last flew competition when I was still in my teens.  A couple of years ago I was feeling a bit nostalgic (I think that comes with old age.), and decided to build a replica of "Butch" a biplane that my father had.  Butch was pretty old and I was pretty young so my recollection is somewhat vague.  I do remember he was pretty good sized and painted white.  Somewhere on the side was the name "Butch".  I don't know if that was the airplane or the pilot.  I normally scratch build or build from antique plans.  But this time I cheated in an effort to make fast progress.  So I built this version of Butch from a kit which I restyled to suit me.  The original power I used was a Saito four stroke single.  What a sweet engine!  While attending a model airplane swap I happened upon a technopower 7 cylinder radial.  I just had to have it!  I knew right then that it was going on Butch.  I purchased it and made all the alterations to Butch to fit it up.  As it turned out this engine was damaged from fuel residue.  I took it all apart and machined one cylinder liner, made a couple of valve guides, made one valve, and several other small parts, replaced all the bearings, and found a very talented gentleman who made me a set (14) of piston rings.  The original manufacturer of these engines stated that there were more than 300 parts in one of them.  What a job!  This engine is about 30 years old.  It is four cycle, seven cylinder, 5/8 bore with about one horsepower.  This version of Butch, like the original, is a control line model.  I don't want this airplane and engine flying any more than about 75 feet away from me.