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Old 07 June 2007, 16:23   #11
RJH
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Country: UK - England
Town: Southampton
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Originally Posted by behavin View Post
what prop are you running with the 250?

i have a 3x16x21.5 but might try a 3x16x23 which i believe is the standard prop on the df250??

my prop has had some usage and small repairs (previous owner) so it may not be quite as efficent as a new one.

Currently hit 6200rpm (for short runs as don't like those revs and saw the rev limiter come on once too) and get 47 knots in flat water but think that a slight increase in pitch may just make the magic 50 whilst reducing the revs to 5800-5900....??thus not stressing the engine in short blasts

boat is the 6.8 ribcraft and i'm not carrying big loads ie divers..just 2 adults and two children plus picnic gear.
Have now checked and prop is definitely 23" so hopefully should be good for more than 45kts
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Old 07 June 2007, 17:28   #12
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Country: UK - England
Town: Nr Tring
Boat name: Braveheart
Make: Porters Renegade
Length: 6m +
Engine: Tohatsu 140
Join Date: May 2007
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Congrats on the new boat - she looks lovely. May the sun shine and the fuel price reduce...
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Old 07 June 2007, 17:56   #13
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Country: UK - England
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Boat name: Niam-ho
Make: Ribcraft
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Engine: Suzuki DF250
MMSI: 235040417
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Quote:
Originally Posted by RJH View Post
Have now checked and prop is definitely 23" so hopefully should be good for more than 45kts
I've got a 23" prop also ... best to date for me has been 52kts. Def more to go though ... just need a nice calm day, debris-free water & suitably game crew to push it a little further!
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Old 08 June 2007, 17:10   #14
RJH
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Congrats on the new boat - she looks lovely. May the sun shine and the fuel price reduce...
Thanks but don't hold out much hope about fuel prices!
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Old 08 June 2007, 17:14   #15
RJH
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Country: UK - England
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Quote:
Originally Posted by NautiAndNice View Post
I've got a 23" prop also ... best to date for me has been 52kts. Def more to go though ... just need a nice calm day, debris-free water & suitably game crew to push it a little further!
Wow..i'll let you know how things go when I've got her run in.
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