On Fri, 18 Jan 2008 17:24:51 -0500, "Robert11"
wrote:

Hello,

Saw a picture and diagram of the WWII Japanese Naval Zero.

Apparently it had 2 machine guns in the upper cowling that fired thru the
prop.
True ?

My question regards the synchronization of these guns so they didn't hit the
prop.
How was this done ?
Mechanical interlock, electrical, or... ?

I'm an engineer, and wouldbe most appreciative for a technical description
of how it was accomplished.

Any pictures of the mechanism, etc. on the web ?

Not specifically about the Zero, but here are some links:

http://www.spartacus.schoolnet.co.uk...chronizing.htm

http://en.wikipedia.org/wiki/Interrupter_gear

http://www.freepatentsonline.com/1782148.html