Input Data Here How To
1 Number of Motors (2 max) 10,000 Max displacement in lbs
45 BHP per Motor 27.0 LWL in feet
2000 Max continuous RPM 8.5 Beam waterline in feet
2.3 Hull Draft in feet exc keel or deadwood
1 # of gearboxes or vee drives 7 reqd speed in Knots
2 # of bearings 150 "C" for hull (150 for runabout, 190 for fast, 210 for race.)
1.00 g/box reduction ratio 16 Max prop dia in inches
         
Experiment with g/b ratio & max dia if reqd.
Results
1 propellers, each 14 diameter 7 inch pitch, with DAR 33%
material 6 propshaft 1    diameter 3 3/7 ft propshaft bearing spacing
will develop 855 pounds of bollard pull.
Warnings
Ideal prop suitable     pitch/diameter OK    
Reqd speed within limits for economy .     16891.2
Sufficient motor power available .