Prop question
mememememe! wrote:
Hi,
i'm wondering if someone could give some advice on what prop i should use
i have a 15ft fibreglass runabout with a 70 hp 3 cyl evinrude motor with
trim tilt
i have a propco-19p prop that i would like to use on it , i'm guessing
its a 19 in pitch prop
would this be sufficient for decent holeshot and reasonable top end ?
i cant really find alot of info in goog le.com
its not a heavy boat
thanks
Like airplane props, boat props specify diameter, # of blades and pitch.
Diameter and blade count are a function of shaft HP X prop shaft speed.
Pitch varies with desired boat speed of operation and prop shaft speed
Boat speed depends on hull shape - principally if it can hop onto the
plane.
It's sometimes easier to refer to a guide (of similar types) and try two
or three props to bracket the desired result.....
Brian W
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