Reply
 
Thread Tools Search this Thread
 
Old 14 November 2004, 16:35   #1
ADS
Member
 
Country: UK - England
Town: Dorset
Length: 4m +
Join Date: Oct 2003
Posts: 1,410
Prop Advice

Hi guys,

I am after a bit of prop advice for my little Avon.
Currently, the boat does 25 knots @ WOT. I am currently running an 11.5 x 13 (aluminium) prop. I do not have a rev counter but I guess I am reaching max revs. At the moment there is bags of acceleration and lot of 'pull'. The boat planes 7 up and when a friend in a 12ft speedboat broke down off hurst I pulled that onto the plane no problem and could reach about 19/20knots!

I am looking for a bit more top end speed as 25 is a little slow So I guess I need to go up in pitch. The question is a would people recommend a 14 or a 15 pitch. Nasher has an ideal 15 pitch prop for sale at the moment (see for sale section) I am just worried that the engine may not reach max RPM with this. The boat is a shallow V and realtively light, I usually use it two up so I am not worried about loosing a bit of acceleration.

Does anybody have any ideas?

Thanks

Alex
__________________

__________________
ADS is offline   Reply With Quote
Old 14 November 2004, 16:48   #2
Member
 
ashbypower's Avatar
 
Country: UK - England
Town: Salisbury/Poole
Boat name: Blue C
Make: XS 600
Length: 6m +
Engine: 125hp Opti
MMSI: 235082826/235909566
Join Date: Jan 2004
Posts: 1,439
Hi Alex try,

http://www.pathfinderpowerboatclub.org.uk/

They have a prop calc prog on the site.

Brian
__________________

__________________
Brian C
Harbour Sea School & APS Marine Centre
ashbypower is offline   Reply With Quote
Old 14 November 2004, 17:13   #3
Member
 
Richard B's Avatar
 
Country: UK - England
Town: Devon
Boat name: White Ice
Make: Ranieri
Length: 5m +
Engine: Suzuki 115hp
Join Date: Jul 2002
Posts: 5,015
Quote:
Originally Posted by ADS
Nasher has an ideal 15 pitch prop for sale at the moment... Does anybody have any ideas?
Yes - ask Nasher if you can borrow his 15" prop! Proof of the pudding is usually at the eating stage
Richard B is offline   Reply With Quote
Old 16 November 2004, 03:53   #4
Member
 
Nasher's Avatar
 
Country: Other
Town: Principalite d'Chaos
Boat name: The Nashers Revenge!
Make: Ocean & Bombard
Length: 6m +
Engine: Suzi DT200EFI, DT9.9
MMSI: "Mmmmm SI" she said!
Join Date: Jan 2004
Posts: 4,147
Not a problem

Nasher
__________________
RIBBED For extra pleasure.
Member of the ebay Blue RIB cover club.
Member of the Bombard 380 Aerotec club
Nasher is offline   Reply With Quote
Old 21 November 2004, 17:21   #5
ADS
Member
 
Country: UK - England
Town: Dorset
Length: 4m +
Join Date: Oct 2003
Posts: 1,410
Nasher, did you get my PM? Maybe your inbox is full, or the kill cord isn't in

Alex
__________________
ADS is offline   Reply With Quote
Reply

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off





Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -5. The time now is 12:05.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.