how to get bow lift
10-06-2008, 06:59 PM
#4
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actually the first place to start is with prop rotation and prop type. Maybe higher rake? what have you tried so far? not sure what you would do to a hull . . . add rocker?
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Last edited by glassdave; 10-06-2008 at 07:02 PM.
10-06-2008, 07:31 PM
#6
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i have tried
17x26 labbed 4 blade merc cleaver tips rounded gave good bow lift but 55mph
17x27 3 blade merc labbed 50 mph
17x26 3 blade high rake bronz 58mph
16x24 chopper type prop 4 blade 65mph but i cant find out who manafactured the chopper or cant find another one like that
if you search CHOPPER WANTED
cheers gerard
17x26 labbed 4 blade merc cleaver tips rounded gave good bow lift but 55mph
17x27 3 blade merc labbed 50 mph
17x26 3 blade high rake bronz 58mph
16x24 chopper type prop 4 blade 65mph but i cant find out who manafactured the chopper or cant find another one like that
if you search CHOPPER WANTED
cheers gerard
Last edited by gerard; 10-06-2008 at 07:35 PM. Reason: wrong wording
10-06-2008, 08:00 PM
#7
what kind of boat again and which way are you spinning them?
__________________
Throttles- Cleveland Construction 377 Talon
08 OPA Class 1 National Champion
08 Class 1 Geico Triple Crown Champion
08 OPA High Points Champion
10 OPA Class 1 National Champion ( happy now Ed! )
Throttles- Cleveland Construction 377 Talon
08 OPA Class 1 National Champion
08 Class 1 Geico Triple Crown Champion
08 OPA High Points Champion
10 OPA Class 1 National Champion ( happy now Ed! )
10-06-2008, 08:12 PM
#8
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Weight in the bow of the boat is a big game changer.
Weight in the stern seems to have a pretty big effect as well.
Propwise:
Less blades= (less stern lift) which translates to more bow lift
smaller diameter= (less stern lift) which translates to more bow lift
round ear blades= more bow lift
Hullwise:
Making sure there is no hook has got to help bow lift.
(It feels impossible to lift the bow when you have a hook)
A little bit of rocker in the hull seems like it would assist trim induced bow lift
Not sure about the chines- maybe larger/wider strakes would help but not sure on that one.
Weight in the stern seems to have a pretty big effect as well.
Propwise:
Less blades= (less stern lift) which translates to more bow lift
smaller diameter= (less stern lift) which translates to more bow lift
round ear blades= more bow lift
Hullwise:
Making sure there is no hook has got to help bow lift.
(It feels impossible to lift the bow when you have a hook)
A little bit of rocker in the hull seems like it would assist trim induced bow lift
Not sure about the chines- maybe larger/wider strakes would help but not sure on that one.
