Garry Russell wrote:The Bristol Hercules was LH but the RR Merlin was RH
I've not looked to see if these are stndard for these manufactures.
Garry
Hi Garry, if my memory serves me right the Griffon turned in the opposite direction to the Merlin
Propeller Drive:
The Griffon 74 uses a left hand tractor propeller driven through a single spur reduction gear housed partly in a casing formed integrally with the crankcase and for the remainder, in a casing bolted to the to the front end of the crankcase.
"The Book of Flight Tests" shows the Piper PA-44 Seminole as being powered by two 180hp Lycoming engines which counter-rotate. Same appears true of the Beechcraft Duchess, Piper Seneca, Cessna Crusader... (based on looking at the prop-blade pitch when the engines are off). Interestingly though, high-powered piston twins and turbine twins don't seem to counter-rotate.
