R03   1000 hp  Elliott Input speed 4478 rpm output speed 1800 rpm ratio 2.487:1 (2)

​R04   1500 hp  Philadelphia input speed 3750 rpm output speed 3750 rpm ratio 1:1 dwg-1   Dwg-2
​​R10    1677 hp Turbodyne input speed 4511 rpm output speed 1200 rpm ratio 3.759:1, SF 1.1

R06   3380 hp  Graffenstaden  input speed 12732 rpm output speed 1800 rpm ratio 7.073:1
R07   3450 hp  Falk  input speed 11800 rpm output speed 11800 rpm ratio 1.1:1 Dwg
R08   5980 hp  Graffenstaden input speed 5029 rpm output speed 1800 rpm ratio 2.79:1     

​R16   12837 hp Lufkin N2400C input speed 4711 rpm output speed 1800 rpm ratio 2.617:1  Dwg ​​