Thomas Borchert wrote:
Paul,

Does it really run at 4300rpm?


Yes (no offense, but in what hole have you been hiding all those years?
;-))

It is geared down. It is a very, very quiet engine, much quieter than
any Lycosaurus or TCM. Thanks to water cooling which also ends the
shock cooling debate. Welcome to 1990s technology.


Really?

http://www.zenoswarbirdvideos.com/P-51_Variants.html

Seems like water cooling has been around just a little longer than that.

Matt