50mph
0.30
The winding design of the motor will not economically allow this to work. You would have to drive a 3 phase generator to supply it.
9989819
1968 20hp
thats the same engine and same weight.
mix 50:1
your motor is a 1975 200 20hp you can get more info here: http://www.autorepairmanuals.biz/site/573683/page/599300
try iboats.com
Assuming a power factor of approx. 0.8 which depends on motor but this will error on the side of caution IL =S/1.73*VL S=P/pf 20hp= about 15000 W. S=15000/.8 = 18750 VA. IL = 18750/1.73*415 = 26A The motor would draw about 26 A. depending on Load and efficiency
That would be 20hp
Is there a shear on a 1975 mercury 200 (20hp) outboard motor
The size of the contactors are dependant upon what the voltage the motor is operating on.