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Homebuilt radials

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cluttonfred

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Feb 13, 2010
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I am not looking for a Twin Wasp or Cyclone, just a nice, low-revving, direct-drive engine, say 3 or 5 cylinders and modest weight and horsepower, say under 200 lbs complete firewall forward and about 40-60 hp. That would make a great engine for any number of small replicas and would sound great to boot.
  • There are the Rotec radials, of course, but they are heavy, expensive and more power than I need or want.
  • I kept an eye on the development of the HCI radial using VW cylinders for several years but the project seemed to stall.
  • Old magazines from the 1930s often mention DIY radials using V-twin motorcycle cylinders with a custom crankcase and crank.
  • I heard a while backabout a project to develop a small radial using Citroen 2CV cylinders.
  • A gentleman named Webster developed a homebuilt radial named Whirlwhind, but I haven't found much on it.
Unfortunately, none of the others ever seem to have taken off, so to speak. Does anyone know of any other DIY radial projects, preferably currently active ones, that might have a chance of success?

Cheers,

Matthew
 
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