Hispano Suiza for sale

Did the cannon come through that big ‘ole in the middle?

Thanks Mike.

…basically it’s a pre crossflow, with inlets and exhaust on the same side…

Yes, but was designed to have a cannon between the cylinder-blocks so the inlet manifold couldn’t be there anyway…..or could it? I am sure the DB605 is a cross-flow?

And the basic design of the Hispano-Suiza went on to great success in various Russian aircraft (as the M-105?)…

…even though it has crappy articulated connecting-rods!

To be fair, it is 36 litres, the size of a Griffon, and it didn’t enter production until 1940.
This version also reached the limits of power output for that design.

Don’t be fooled by the cylinder design either, except that it is probably 2 valve? The Merlin induction system is fairly basic, just neater, and with a very efficient supercharger design, after 1941.

Pete

Looking at it with a bit more magnification, you might be right, basically it’s a pre crossflow, with inlets and exhaust on the same side; even less likely that it achieved 1000hp in ’37, especially when the Merlin was struggling to achieve that.

Different engine altogether Tony. The WWI-era Hisso was a 140-300hp V8, this is the 1930s 1000hp V12

I know of a new old stock (never run) one for sale, indeed it’s on the web, see

http://www.newenglandboatandmotor.com/engine-for-sale

Wish someone would build a D.520 around it!

Don’t the inlets start down at the back of the engine, throught the super-charger and then go forward to the carburettors on the outside of the cylinder-heads?

Do those inlets really go all the way to the front, angle up, turn round and go back, and it still produces 1000hp?

A lot of engine for the money or a lot of money for the engine, I don’t know! The engine was made for the Morane-Saulnier MS.406 and Dewoitine D.520.