Cruisers Forum
 


Join CruisersForum Today

Reply
 
Thread Tools Rate Thread Display Modes
Old 10-11-2014, 12:36   #1
Registered User

Join Date: Dec 2013
Posts: 73
Sillette Sonic Drive Leg - Anyone fitted larger prop?

Two mechanics now have advised that prop on my sillette leg on a Prout Snowgoose is too small and costing me speed at any given revs.

Its the standard prop that Sillette supplied and nothing bigger will fit under the cavitation plate on the leg. Has anyone experimented with cutting off the stock cavitation plate and fitting a bigger prop and a new higher plate? With hundreds of Prouts using these legs and several other brands too I figure someone must have tried it??
__________________
Snowgoose35 is offline   Reply With Quote
Old 10-11-2014, 14:35   #2
Senior Cruiser
 
atoll's Avatar

Cruisers Forum Supporter

Join Date: Mar 2010
Location: gettin naughty on the beach in cornwall
Boat: 63 custom alloy sloop,macwester26,prout snowgoose 37 elite catamaran!
Posts: 9,310
Images: 75
Re: Sillette Sonic Drive Leg - Anyone fitted larger prop?

quite a few prouts either elites or snowgooses carry 2 props with slightly different pitches,a finer pitch for coastal waters and a courser pitch for ocean passages.

sorry in Thailand at the moment so cant quote exact size and pitch but think I have 12x17 and 12x19 which both work great and give about 7.6 knots with my 33hp motor on my prout elite 37ft.

not sure if it would be possible to cut out the plate and fit a bigger prop without changing/extending the drive shaft
__________________
my catamaran building project updates http://www.cruisersforum.com/forums/...36#post2502136
atoll is offline   Reply With Quote
Old 11-11-2014, 02:26   #3
Registered User

Join Date: Dec 2013
Posts: 73
Re: Sillette Sonic Drive Leg - Anyone fitted larger prop?

Interesting - I have a 15 x 11 which was what Sillette supplied with the leg for my 3GM30 motor (27hp)
__________________
Snowgoose35 is offline   Reply With Quote
Reply

Thread Tools
Display Modes Rate This Thread
Rate This Thread:

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


Similar Threads
Thread Thread Starter Forum Replies Last Post
For Sale: Sillette Sonic cat drive 2 for sale cskins Classifieds Archive 1 06-10-2014 03:08
For Sale: Calling Cat Owners! Sonic Sillette Cat Drive 2 Lower Leg / Props BareProductions Classifieds Archive 14 10-10-2013 13:30
Want To Buy: Sonic Sillette Drive jphillips48 Classifieds Archive 15 07-10-2013 07:40
Sillette drive leg Gwilliston Propellers & Drive Systems 1 17-09-2012 09:40
Sillette-Sonic Drive Pa La O La Multihull Sailboats 12 30-01-2012 18:12



Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -7. The time now is 16:33.


Google+
Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.
Social Knowledge Networks
Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.

ShowCase vBulletin Plugins by Drive Thru Online, Inc.