| 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 | . | ||||||||||