Thread subject: Whaler Central - Boston Whaler Boat Information and Photos :: Prop size for 13 ft

Posted by Eddie M on 06/21/17 - 2:50 PM
#5

Reel. I have a 1998 Anniversary 13' Classic #12 with a FI F 40. I use the Yamaha SS prop listed above and, I think I have a prior post with the performance numbers. The motor is mounted all the way down or lowest position. Depending on wind, current, sea condition and fuel condition I have inconsistently hit top speed of 36 mph at 5600 rpm's. That is with no load by myself. Makes for an uneasy ride. Consistantly the boat runs 5500 rpm's at 34 mph. The FI F40 Yamaha is making 40hp at 5500rpm's per the owners manual. Some motors make more power at the top of their recommended limit or up closer the rev limiter. You would find that out testing an 11" prop. Please post the information if you get the opportunity to test one. I will do the same. Thank you, Ed.