"Black Jack" radial engine chopper. Not the first radial chopper I've posted, but I'm not over them yet

for the story about it: http://redoubtreporter.wordpress.com/2010/10/06/bike-takes-flight-%E2%80%94%C2%A0motorcycle-powered-by-airplane-engine/ in the story the bike builder and owner states that there are only 3 radial engine choppers... I guess he hasn't looked at my blog, I've got 3 others posted, Lucky 7 seems to be posted 2wice, before (at SEMA 2009) and after a blue paint job, one chopper

Radial engine

Radial engine is a modification of the internal combustion engine however it is different from a usual car engine.The constructionA usual car engine has its cylinders lined up in two rows. And they are called inline engines. Every cylinder is attached to the crankshaft with its own attachment. The crankshaft is long and it is one of disadvantages of the inline engine. The crankshaft is long,