Thread Tools Search this Thread
Old 19 August 2010, 11:24   #11
RIBnet admin team
willk's Avatar
Country: Ireland
Make: Redbay Boats
Length: 9m +
Engine: 370hp
Join Date: Feb 2008
Posts: 13,092
Originally Posted by Screaming04 View Post
I too am curious as to those in smaller boats operating twin 40's or 60's. Can they plane on one?
Meh 6.5 with 90s can plane quite happily at 22.5kts on one wing

She falls off the plane at about 16kts

BTW, Nice rib you have there lad

willk is online now   Reply With Quote
Old 19 August 2010, 12:01   #12
Screaming04's Avatar
Country: Canada
Town: Vancouver, BC Canada
Boat name: Black Ops
Make: Zodiac Hurricane 733
Length: 7m +
Engine: OceanPro 150hp x 2
Join Date: Oct 2008
Posts: 246
Originally Posted by willk View Post

BTW, Nice rib you have there lad
Thanks! I just can't stop putting up pictures since I've figured out how.
Attached Thumbnails
Click image for larger version

Name:	P8103971.jpg
Views:	152
Size:	65.4 KB
ID:	53557  

Screaming04 is offline   Reply With Quote
Old 21 August 2010, 08:48   #13
Country: France
Town: Cannes
Boat name: midkat 550
Make: apoge
Length: 5m +
Engine: 2x50 Tohatsu
Join Date: Jan 2008
Posts: 126
I have another answer, but on a very uncommon rib !

The rib is a Stingray-Tomcat (european name) 6.3 catamaran, with 2x50hp Tohatsu (carb version) and a pair of (too) long props (15" stainless for speed)

With 6 male adults on board, she was unable to plane on the starboard engine - but she did on the port one.
The top speed was 36knots with 2 on board, not bad at all.

The same boat run at 45 knots with a pair of 90 Yam (2 stroke) and 15" ali props @6000 rpm, a bit too high - 16 or 17" SS should gain 2 or 3 knots easily, possibly more.
yorfuoj is offline   Reply With Quote
Old 23 August 2010, 05:02   #14
Country: UK - Scotland
Boat name: Wildheart
Make: Humber/Delta Seasafe
Length: 5m +
Engine: Merc 60 Clamshell
MMSI: 235068449
Join Date: Apr 2007
Posts: 4,614
And from the very dim & distant past, SR5.4, twin Yam premix 30s. - Just planed & no more, but took forever to get rid of the ballast!
9D280 is offline   Reply With Quote
Old 05 September 2010, 16:11   #15
RIBnet supporter
Pikey Dave's Avatar
Country: UK - England
Town: South Yorks
Boat name: Black Pig
Make: Ribcraft
Length: 5m +
Engine: DF140a
MMSI: 235111389
Join Date: Feb 2008
Posts: 7,943
I can plane quite happily at 28kn on one engine, using both engines gets me about another 10kn. I'm on 19p Mercury Rev4s, it was always the plan to be able to run on one engine.
Pikey Dave is offline   Reply With Quote
Old 05 September 2010, 16:25   #16
RIBnet supporter
Country: UK - Scotland
Town: West of Scotland
Make: humber
Length: 5m +
Engine: 90
Join Date: Nov 2007
Posts: 92

I used a SR 5.4 with twin 30's and it would plane on one, - with just the driver, or with one moveable crew as well, to get it over the hump, but no more than that.
eilean mor 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

Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -5. The time now is 06:27.

Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2018, vBulletin Solutions, Inc.