Reply
 
Thread Tools Search this Thread
 
Old 26 April 2014, 15:08   #1
Member
 
Country: USA
Town: california
Length: 4m +
Join Date: Apr 2014
Posts: 5
MPG in a 14' Rib?

Hello I'm new to ribs but have owned a 17' boston whaler montauk and a 18' boston whaler outrage. I'm looking at getting a 14' AB rib with a 50 hp 4 stroke on it. I've read other threads and did a search online and haven't really found a good estimation on mpg on a rib this size? I know it will vary widely with wind, swell etc, but can anyone give me a ballpark estimation?

I'm hoping to take this rib around coastal areas in california and maybe to the islands when weather permits but need to figure out the range.

Thanks, I'm sure I'm going to have a bunch of questions later!
__________________

__________________
c-level is offline   Reply With Quote
Old 26 April 2014, 15:23   #2
Member
 
Adamn's Avatar
 
Country: UK - England
Town: Helston
Boat name: Myrtle
Make: Zodiac pro 500
Length: 4m +
Engine: Outboard 60hp
Join Date: Sep 2012
Posts: 255
Hi I have a 4.7m (approx 15.6ft) Zodiac 9 man powered with a 60 HP Yam.
I get close to 2nm per litre ( 4.5 litres in a gallon ). I would say you should be getting close to 10 miles per gallon. Hope this helps.
__________________

__________________
Adamn is offline   Reply With Quote
Old 26 April 2014, 17:33   #3
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: 7,594
RIBase
Quote:
Originally Posted by Adamn View Post
Hi I have a 4.7m (approx 15.6ft) Zodiac 9 man powered with a 60 HP Yam.
I get close to 2nm per litre ( 4.5 litres in a real gallon ). I would say you should be getting close to 10 nm miles per Proper imperial gallon. Hope this helps.
ftfy
__________________
Rule#2: Never argue with an idiot. He'll drag you down to his level & then beat you with experience.
Rule#3: Tha' can't educate pork.
Rule#4: See rule#5
Pikey Dave is offline   Reply With Quote
Old 26 April 2014, 22:28   #4
Member
 
Country: Canada
Town: Bella Coola
Boat name: Water Rocket
Make: Polaris
Length: 9m +
Engine: twin Yamaha 150 hp
Join Date: Nov 2003
Posts: 123
I read somewhere that a outboard burns 1 gallon per hour per 50 hp.
__________________
hank is offline   Reply With Quote
Old 27 April 2014, 02:43   #5
Member
 
Peter_C's Avatar
 
Country: USA
Boat name: Uh...a kayak?
Length: 4m +
Join Date: Dec 2009
Posts: 1,485
You must be in SoCal when you talk about the "islands"? In NorCal the Farallons are not somewhere I would condsider taking a 14' RIB. I do know someone who routinely takes his 15' SIB out to Catalina and the like.

I have never tried to figure out my fuel mileage, but with a 40hp on a 14' SIB I can run for around 4 hours on 6.6 gallons. Even with my 2 stroke I consider it very fuel efficient. A 4 stroke would be even better.

Whalers are nice boats, and I have often dreamed of owning an Outrage.
__________________
Peter_C is offline   Reply With Quote
Old 27 April 2014, 03:20   #6
Member
 
Adamn's Avatar
 
Country: UK - England
Town: Helston
Boat name: Myrtle
Make: Zodiac pro 500
Length: 4m +
Engine: Outboard 60hp
Join Date: Sep 2012
Posts: 255
What I go by is what fuel I actually use! I have a 35 litre console tank (8 imperial Gallons) so if I am out fishing on tick over and moving from place to place at various speeds I look at the GPS for my NM and when I fill up I see what it takes. It is only an average and of course gunning it on WOT and towing will be a different story.
__________________
Adamn is offline   Reply With Quote
Old 27 April 2014, 15:25   #7
Member
 
Country: USA
Town: Oakland CA
Length: 3m +
Join Date: Feb 2005
Posts: 6,653
Quote:
Originally Posted by hank View Post
I read somewhere that a outboard burns 1 gallon per hour per 50 hp.
That sounds really low to me.

Depends on a lot of things: Throttle setting is the main thing, but sea state, load, currents, and wind all play a part.

At cruise (24 or so mph) my 18'/F115 burns about 6 gph in reasonable conditions. WOT it's closer to 11 or 12 GPH at around 40 mph.

I'd guess the OP would get somewhere in the 6-8 mpg range if he stays off the stops (don't run wide open.) That is just a guess though.

jky
__________________
jyasaki is offline   Reply With Quote
Old 27 April 2014, 16:48   #8
Member
 
Country: USA
Town: california
Length: 4m +
Join Date: Apr 2014
Posts: 5
I'm surprised that most people don't really keep track of it, I guess everyone just has a rough idea of how long their tank will last and for most folks down here the smaller ribs are just used as tenders.

You are correct Peter, I live in southern California. Catalina island is one of my favorite stops, I loved running there in my whaler Outrage. I'd even take that boat to San Clemente Island in good weather. Right now I'm just looking for something safe to run that gets good gas milage so I can take it out by myself.
__________________

__________________
c-level is offline   Reply With Quote
Reply

Tags
rib

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 16:23.


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