On Mon, 05 Apr 2004 17:10:28 GMT,
(Corky Scott) wrote:


The Bf 109 used a Daimler Benze DB601 2,070 cubic inch displacement,
fuel injected inverted engine. The canon used in the models F and G
but not the E used during the Battle of Britain, nestled between the
banks of the inverted V12 and fired through the hollow gear that spun
the prop.

Corky Scott

PS, google Bf 109 and you'll find lots of information.


Sorry, I re-read that and it looks a little confusing. To elaborate,
the DB 601 had a spur gear type reduction drive with the drive gear on
the end of the crankshaft driving a hollow propshaft gear. It is
through the propshaft gear that the canon fires, the propshaft gear
was offset enough to allow the barrel of the cannon to fit between the
banks of the engine.

The reduction ratio was either 1.55 to 1 or 1.88 to 1, depending on
the model and use.

My understanding is that it was a tough gun to keep working correctly
and it must have been fun to open the cowl to get to it to clean and
re-arm when the engine was nice and hot.

Corky Scott