Reply
 
Thread Tools Search this Thread
 
Old 10 July 2003, 15:56   #1
Member
 
Country: UK - England
Town: Lymington Yacht Have
Boat name: Various
Make: Cobra
Length: 10m +
Engine: F225 Yamahas
Join Date: Apr 2003
Posts: 36
70knots, I think not!!

Perhaps if you dropped both those Ballistics in question out of a plane I don't doubt they would do more than 70Knots but not on the water!! Believe me I know!
__________________

__________________
Islander is offline   Reply With Quote
Old 10 July 2003, 16:04   #2
Member
 
Country: UK - England
Town: Hamble
Length: 9m +
Join Date: Dec 2002
Posts: 2,317
Maybe "Chris Murray" is the English translation of MANOS!
__________________

__________________
Dirk Diggler is offline   Reply With Quote
Old 10 July 2003, 16:10   #3
Member
 
Country: UK - Channel Islands
Boat name: Spud
Make: BWM
Length: 5.75
Engine: Mariner 125
Join Date: Jan 2003
Posts: 199
Quote:
Originally posted by Dirk Diggler
Maybe "Chris Murray" is the English translation of MANOS!
*cough*
i wrote that Don't try giving someone else my limelight


But yeah I thought 70kts was OTT but thats what the sale speech says
__________________
-<=[Tw18]=>- is offline   Reply With Quote
Old 10 July 2003, 16:35   #4
Member
 
Country: UK - England
Town: West Wickham
Boat name: Aries IV
Make: Scorpion
Length: 8m +
Engine: Etec 250
MMSI: 235036477
Join Date: Dec 2002
Posts: 273
It's not as outrageous as it sounds ... really!

Based on GaryGee's recent info, the 7.8 Offshore (which is a heavily-built boat) does about 34 kts with a 240 HP inboard diesel (might be 230 HP).

While I appreciate that this is perhaps a little under twice the weight of an outboard of equivalent power output, I doubt that a 225 HPDI would produce more than say 45kts. However, I have no doubt that higher speeds would be achieved on lighter RIBs of the same length and beam.

Given that the 225, 250 and 300 HPDI engines are exactly the same weight and have the same cylinder block, I should have thought that there would be no difference in fuel consumption at cruising speed (say 35 kts). I would therefore suggest that "economy" at cruising speed is not really an issue, when considering these engines.

On this basis, what is the point in limiting the top speed (not to mention the acceleration) by going for the lower power output?

Manos - What a great chap!

Regards,

Chris.
__________________
Chris Murray is offline   Reply With Quote
Old 11 July 2003, 05:04   #5
Member
 
Cookee's Avatar
 
Country: UK - England
Town: Salcombe, Devon, UK
Boat name: BananaShark
Make: BananaShark
Length: 10m +
Engine: 2xYanmar 260 diesels
Join Date: Mar 2003
Posts: 4,225
Oi you lot stop Manosturbating or you'll go blind!

__________________
Cookee
Originally Posted by Zippy
When a boat looks that good who needs tubes!!!
Cookee is offline   Reply With Quote
Old 11 July 2003, 05:11   #6
Member
 
Country: Greece
Town: Gloucetsreshire
Boat name: GATO DI MARE
Make: MAR.CO
Length: 9m +
Engine: Yamaha 200Vmax
MMSI: 235027678
Join Date: Sep 2002
Posts: 3,339
Send a message via MSN to Manos Send a message via Yahoo to Manos Send a message via Skype™ to Manos
Hey people have you found where excatly the sea is located in the UK yet??
You may put your so called 'boats' in it one of these days (if you find where exactly is that is)
Manos is offline   Reply With Quote
Old 11 July 2003, 06:05   #7
Member
 
Country: UK - England
Town: Oxford
Make: Ribtec, Ballistic, C
Engine: 40hp 4 strokes - twi
Join Date: Apr 2002
Posts: 309
ISLANDER I garentee that you could tow them at more than 70! . In my opinion you could do with a longer boat than 8 meters with twin 225's on. They are very heavy. I think twin 175 would be more suitible. I think you would find it a very skitish ride at 70 in an 8m. Hitting 70 knots is possible though. would compleetly depend on the engine set up, ie hight, jacking plates how close together, props ect. o and most importantly when the helm bricks it!
__________________
dgpw is offline   Reply With Quote
Old 11 July 2003, 12:58   #8
Member
 
Country: UK - England
Town: Lymington
Make: Ribcraft
Length: 10m +
Engine: Yamaha
Join Date: Dec 2002
Posts: 205
I think the chance of getting 70knts out of a 7.8 Ballistic is about the same as finding a RIB in a box of kellogs cornflakes.
__________________
stuart hedges is offline   Reply With Quote
Old 11 July 2003, 13:09   #9
Member
 
Country: UK - England
Town: Blackpool
Boat name: To Exi
Make: new sib 4 man
Length: 8+ft
Engine: Mariner 4hp long shaft
Join Date: Nov 2002
Posts: 1,012
__________________
www.eurocommuter.com
crazyhorse is offline   Reply With Quote
Old 11 July 2003, 13:34   #10
Member
 
Country: UK - England
Town: Hamble
Length: 9m +
Join Date: Dec 2002
Posts: 2,317
Quote:
Originally posted by H2O Events
is about the same as finding a RIB in a box of kellogs cornflakes.
Don't tell Manos that, he's still hoping.
__________________

__________________
Dirk Diggler 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 17:56.


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