ms1
Member
I am a Fairline Mirage 29 owner
I am still think 15 x 17 for the AQ145 set up ...
but happy to be proved wrong
LH part 854982
or
RH part 854997
when you borrow your friends prop these are the numbers to look for
-------------LH ------ RH
14 x 17 854977 854992
14 x 19 854978 854993
14 x 21 854979 854994
14 x 23 854980 854995
15 x 15 854981 854996
15 x 17 854982 854997
15 x 19 854983 854998
15 x 21 854984 854999
16 x 9 854985 —
16 x 13 854986 872000
16 x 15 854987 872001
16 x 17 854988 872002
16 x 19 854989 872003
16 x 21 854990 872004
16 x 23 854991 872005
These are the 'long hub' part numbers
also
15x17 is the largest 'short hub' Volvo propeller
if you take your waterline length as 25 feet then you 'hull' speed (or max displacement speed) is 6.7 knots
this means after that sort of speed you have to get over the 'hump' caused by the bow, for which you need a whole bunch of power. Trim tabs, if you have them, help by getting the stern up a bit to help you beat the hump.
If you want to talk speed and prop stuff then Mike Bellamy at Lancing Marine is likely to be able to give you some guidance.
Sadly propellers are not cheap which means experimenting is likely to be costly. Ebay often has propellers on offer which might be helpful.
I previously owned a B 25, a I remember the tunnel prop version had a traditional engine, gearbox, prop shaft and, whilst the hull above the waterline looked identical, the planing hull shape was fitted with outdrive transmission.
As previously mentioned by other subscribers the manufacturers could be quite optimistic about their speed claims, but I still like to think that you will succeed eventually.
Also as mentioned I suspect you will be either up or down .. .as soon as you throttle back a bit it may well fall off the plane. Throttle wide open trying to beat the hump , if unsuccessful, will give you bigtime fuel consumption of course.
If you decide what will be successful and then get a cheap mashed prop off eBay, then Steel Developments in London will fix/ rebuild it for you.
I am still think 15 x 17 for the AQ145 set up ...
but happy to be proved wrong
LH part 854982
or
RH part 854997
when you borrow your friends prop these are the numbers to look for
-------------LH ------ RH
14 x 17 854977 854992
14 x 19 854978 854993
14 x 21 854979 854994
14 x 23 854980 854995
15 x 15 854981 854996
15 x 17 854982 854997
15 x 19 854983 854998
15 x 21 854984 854999
16 x 9 854985 —
16 x 13 854986 872000
16 x 15 854987 872001
16 x 17 854988 872002
16 x 19 854989 872003
16 x 21 854990 872004
16 x 23 854991 872005
These are the 'long hub' part numbers
also
15x17 is the largest 'short hub' Volvo propeller
if you take your waterline length as 25 feet then you 'hull' speed (or max displacement speed) is 6.7 knots
this means after that sort of speed you have to get over the 'hump' caused by the bow, for which you need a whole bunch of power. Trim tabs, if you have them, help by getting the stern up a bit to help you beat the hump.
If you want to talk speed and prop stuff then Mike Bellamy at Lancing Marine is likely to be able to give you some guidance.
Sadly propellers are not cheap which means experimenting is likely to be costly. Ebay often has propellers on offer which might be helpful.
I previously owned a B 25, a I remember the tunnel prop version had a traditional engine, gearbox, prop shaft and, whilst the hull above the waterline looked identical, the planing hull shape was fitted with outdrive transmission.
As previously mentioned by other subscribers the manufacturers could be quite optimistic about their speed claims, but I still like to think that you will succeed eventually.
Also as mentioned I suspect you will be either up or down .. .as soon as you throttle back a bit it may well fall off the plane. Throttle wide open trying to beat the hump , if unsuccessful, will give you bigtime fuel consumption of course.
If you decide what will be successful and then get a cheap mashed prop off eBay, then Steel Developments in London will fix/ rebuild it for you.