Thread Tools Search this Thread
Old 30 January 2012, 17:16   #1
Country: UK - England
Town: Devon
Length: 3m +
Engine: YAM 25, YAM 30
Join Date: Aug 2011
Posts: 50
Avon super sport planing

My AVON supersport rib has the Yamaha 30 hp long shaft engine and the previous owner has fitted plastic extension fins to the gearbox leg, is there any difficulty getting this rib on the plane with this engine? Iíd like to remove the fins and just have the standard leg.
What do you guys think?
Attached Thumbnails
Click image for larger version

Name:	DSC01134.JPG
Views:	177
Size:	16.1 KB
ID:	65270  

eliott is offline   Reply With Quote
Old 30 January 2012, 18:40   #2
Country: UK - Wales
Town: West Wales
Make: Vipermax 5.8, SR4.7
Length: 5m +
Engine: 150 Opti, F50EFi
Join Date: Sep 2005
Posts: 6,299
Yes, I'd suggest you get them off there.

Maybe with 4 on board and 2 full tanks, it was riding a bit stern-heavy, so the previous owner fitted the fins to help it get on the plane.

Downhilldai is offline   Reply With Quote
Old 31 January 2012, 09:38   #3
Country: UK - Scotland
Boat name: Wildheart
Make: Humber/Delta Seasafe
Length: 5m +
Engine: Merc 60 Clamshell
MMSI: 235068449
Join Date: Apr 2007
Posts: 4,650
I've removed fins from 2 boats so far and improved the performance & handling. There are scenarios where they improve matters. You may need to muck about with the engine trim once they are off.

Worst case if you take them off and it handles like a pile of mince, put them back on!
9D280 is offline   Reply With Quote
Old 31 January 2012, 12:25   #4
Country: UK - England
Town: Dorset & Hants
Boat name: Streaker/Orange
Make: Avon/Ribcraft
Length: 4m +
Engine: 50Yam/25 Mariner
Join Date: Apr 2007
Posts: 5,551
Why not try it with them and then decide ? Any reason you really want to take them off ?

They were clearly put on for a reason ( as has been said maybe to conter being a bit tail heavy ) .

I added them to my 4m as while it planed easily it did a good impression of a rocket until it got going. Admitedly it was only for a second or so , but helped me no end & I can now plane at lower speeds ( within the harbour speed limit )
PeterM is offline   Reply With Quote

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

All times are GMT. The time now is 14:04.

Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2022, vBulletin Solutions, Inc.