Eagle Notes

The speeds listed below are approximate and not guaranteed. They are based on the listed displacement and may vary if displacement (weight) varies. All speeds assume well-faired hulls driving through properly sized propellers with suitable gearing to match the power and torque curves of the engine in question. All speeds are in knots per hour. To convert to miles per hour, divide by .87. Horsepower is given as constant 24-hour rated SHAFT HORSEPOWER (SHP); NOT brake horsepower (BHP), nor intermittent ratings. If only BHP is known, multiply this figure by .70 for approximate constant SHP. Figures assume S.A.E. methods. If ratings given in D.I.N., these will be about 8% less than S.A.E. If ratings given in KW, this will give ratings about 75% of BHP (S.A.E.) ratings. In all cases, it makes no difference if the engine is diesel or gasoline powered.

6 knots 10 SHP
7 knots 12 SHP
8 knots 16 SHP
9 knots 21 SHP
11 knots 27 SHP
13 knots 32 SHP
15 knots 43 SHP
18 knots 56 SHP
20 knots 70 SHP
22 knots 88 SHP
25 knots 105 SHP
27 knots 125 SHP