Mariner 50 Range

Bootneck · 19 March 2006, 16:53

Hi,

Just fitted a Mariner 50 2 stroke to a 4.5 rib. Does the old 1ltr per mile rule still apply ?

Bootneck

ADS · 19 March 2006, 16:59

Depends how you drive it!

Daniel TD5 · 19 March 2006, 18:16

i had a 50hp merc on a 4.5 meter vailant with 25 litres it went for most of the day had a spare 25l tank just in case

dan

Nos4r2 · 20 March 2006, 21:13

work on 1 gallon per hour per 10hp and you won't go far wrong.

gaviotapete · 16 April 2006, 03:40

are you saying 40hp will burn 4 gallons per hour at, say,
3/4 throttle?

Poly · 16 April 2006, 10:49

I think the 1 Gal/Hr for each 10HP rule of thumb is actually at full open throttle. So a 40HP would burn 4 Gal/hr at full throttle, and considerably less than this at 3/4.

Nos4r2 · 16 April 2006, 11:14

yeah-but if you work a flat rule of 1gph/10hp you aren't going to run out, which is part of the point.

Dino89 · 16 April 2006, 14:28

i have 50 merc 2 stroke on 3 metre searider and on a 3 hour normal average run out almost always have to swap tanks i take 2 x 25 litre tanks would say i use 8 - 12 litres per hour as i say this is an average in reasonable sea driving to enjoy trip
definitley wouldnt go out with out a spare tank !!

Nos4r2 · 16 April 2006, 18:34

Ditto-I've actually got 3 tanks-2x25litre and 1x30litre so if I do get one of those nice days where I want go halfway across the channel I can. I usually only take 50 litres out with me though.

Biggles · 16 April 2006, 19:04

Quote:

Originally Posted by Bootneck

Hi,

Just fitted a Mariner 50 2 stroke to a 4.5 rib. Does the old 1ltr per mile rule still apply ?

Bootneck

It certainly does on my mates 50 HP Mariner on a 4 mtr Searider.

Swifty · 16 April 2006, 22:28

(aged) 2 stroke 90 on a searider 5.4 gets 1.0 - 1.2 NM to litre. I budget 1 mile=1 lire. Anything better is a bonus. That works out at about 5 galls/hr @ 24 kn @ 3/4 throttle. A bit more at wot.

If that helps...
Tim'mers.

Rogan · 26 April 2006, 22:09

We seem to be able to chew through 5 gallons an hour at WOT. About 38MPH in the Zodiac Fututa Mark IIC and about 27 MPH in the little Hurricane. But switching props and taking it easy we can stay in the 3 gallon an hour range. When we cross Lake Michigan, about 56miles, we take a 12 gallon and two 5 gallon tanks (You never know whats going to happen).

Rogan

Bootneck · 04 May 2006, 20:26

Hi,

Thanks for the info, I took the old girl out today on the River Trent, sticking to the speed limit in displacement mode it ate the fuel up big time.

Bootneck