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It does 51 mph with a GPS, revs are 5800-5900 with full tank and one on board. With 3 on board it is 5700 revs and 48mph. Prop is mercury alu A15 P21. Speed to plane is good and there is no feeling of lacking power. At 4100rpm I cruise approx 33 mph. I need anyway a spare prop so what could be...
Can someone help please? I just bought a Maxum 1900Xr BR with a Mercury 150hp OB. Both are 1997 model year. The 3-blade prop got the following id on the hub: 832832 A14P21 MERCURY. I am trying to find out if this is the original size prop? Also what that number tells you? (P21 = pitch?). Are...
