Build your own miniture 9 cylinder radial

[maxum96]

http://www.youtube.com/watch?v=Y1rjRmTV9qE&feature=related

[The Inspector]

Now THAT'S COOL!! Quite the technical achievement as well as doing 99.99% of the creating and machining and it sounds pretty stout too!

[CAPFlyer]

I want to see someone put something like that on an R/C BT or Texan. That would be too cool to hear an engine that runs at the right RPMs on one of them.

[JDK]

The Rotec radials built here in Victoria started out when the guys were building scale radials for models, and it was suggested that they just 'scale 'em up'!

http://www.rotecradialengines.com/aboutus.htm