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Old 10 July 2012, 11:18   #1
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Country: UK - England
Town: Thornaby
Boat name: Storm
Make: Humber Ocean Pro 6.5
Length: 6m +
Engine: Suzuki DF 150
Join Date: Jan 2008
Posts: 335
115 hp fuel consumtion.

So who has an engine similar size on there rib.

What size boat and fuel usage ish ?!?

Phil
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Old 10 July 2012, 11:47   #2
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6.2 metre with yamaha f115. At 25kts about 1ltr/mile
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Old 11 July 2012, 18:02   #3
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Country: USA
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18' aluminum hull; F115 = about 4mpg.

jky
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Old 11 July 2012, 18:24   #4
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Country: UK - England
Town: Truro-Cornwall & Brazil
Boat name: Bananas in Blue
Make: Humber Destroyer 5.5
Length: 5m +
Engine: E-Tec 115
Join Date: Jun 2007
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5.5m Humber Destroyer with E-tec 115hp, Getting about 1.3 Nm/L @25knts.

Drops to about 1Nm/L @30knts.
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Old 12 July 2012, 11:53   #5
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Country: UK - England
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Make: Humber Ocean Pro 6.5
Length: 6m +
Engine: Suzuki DF 150
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My Ficht seems to be doing 1l/m on 5.2 offshore with 4 divers slight sea and about 23-25 mph.
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Old 12 July 2012, 15:42   #6
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Country: UK - England
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Make: RIBTEC 655
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Engine: Yam 150
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Merc 115 EFI, 6m Ribtec, at about 26 knots the gauge shows 6 gallons per hour - I have anti foul and my engine sits a little low so hope to improve the economy a little.
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Old 19 July 2012, 03:12   #7
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Country: USA
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Boat name: Heavy Hitter
Make: Zodiac
Length: 5m +
Engine: 115hp Outboard
Join Date: Nov 2011
Posts: 26
Older 115 2-stroke Zodiac 530 loaded with 60 gal of fuel gets 5 gal/hr at 30mph.
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Old 19 July 2012, 05:43   #8
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Country: UK - Scotland
Town: Glasgow
Boat name: snagglepuss
Make: Shetland
Length: 6m +
Engine: 90 hp Outboard
Join Date: Nov 2011
Posts: 562
Hi

before you look at the numbers below, fuel consumption obviously matters more the more hours you do so these are from a test of 150 hp outboards in a swedish boat magazine:

Boat used: Flipper 605 WA (6,15 meter x 2,32 meter, total weight at test 1400 kilogram, water temp 18 deg. Celsius

Honda BF150
Top RPM in test: 6000
Prop used: Honda HR, 3 blade, 20 inch pitch

a) Speed (knots):
At max rpm: 41,7
Minus 500 rpm: 37,2
Minus 1000 rpm: 32,6
Minus 1500 rpm: 29,1
Minus 2000 rpm: 25,5

b) Fuel consumtion (litre per nautical miles):
At max rpm: 1,27
Minus 500 rpm: 1,03
Minus 1000 rpm: 0,91
Minus 1500 rpm: 0,80
Minus 2000 rpm: 0,75

c) Noise (decibel):
At max rpm: 86
Minus 500 rpm: 84
Minus 1000 rpm: 82
Minus 1500 rpm: 81
Minus 2000 rpm: 80

d) Acceleration (sek):
0-30 knots: 9,2
15-30 knots: 6,8

Evinrude E-Tec 150
Top RPM in test: 5100
Prop used: Rebel, 3 blade, 21 inch pitch
a) Speed (knots):
At max rpm: 44,7
Minus 500 rpm: 40,3
Minus 1000 rpm: 33,8
Minus 1500 rpm: 30,0
Minus 2000 rpm: 24,9
b) Fuel consumtion (litre per nautical miles):
At max rpm: 1,38
Minus 500 rpm: 1,19
Minus 1000 rpm: 0,99
Minus 1500 rpm: 0,93
Minus 2000 rpm: 0,83

c) Noise (decibel):
At max rpm: 87
Minus 500 rpm: 85
Minus 1000 rpm: 83
Minus 1500 rpm: 80
Minus 2000 rpm: 78

d) Acceleration (sek):
0-30 knots: 8,0
15-30 knots: 5,6

Mercury Verado 150
Top RPM in test: 6200
Prop used: Mirage, 3 blade, 17 inch pitch

a) Speed (knots):
At max rpm: 41,2
Minus 500 rpm: 36,5
Minus 1000 rpm: 33,4
Minus 1500 rpm: 29,5
Minus 2000 rpm: 25,6

b) Fuel consumtion (litre per nautical miles):
At max rpm: 1,80
Minus 500 rpm: 1,45
Minus 1000 rpm: 1,30
Minus 1500 rpm: 1,04
Minus 2000 rpm: 0,77

c) Noise (decibel):
At max rpm: 87
Minus 500 rpm: 86
Minus 1000 rpm: 83
Minus 1500 rpm: 82
Minus 2000 rpm: 80

d) Acceleration (sek):
0-30 knots: 7,3
15-30 knots: 5,4


Suzuki DF150
Top RPM in test: 6000
Prop used: Suzuki, 3 blade, 23 inch pitch

a) Speed (knots):
At max rpm: 43,2
Minus 500 rpm: 39,4
Minus 1000 rpm: 36,4
Minus 1500 rpm: 32,0
Minus 2000 rpm: 27,8

b) Fuel consumtion (litre per nautical miles):
At max rpm: 1,26
Minus 500 rpm: 1,17
Minus 1000 rpm: 1,04
Minus 1500 rpm: 0,91
Minus 2000 rpm: 0,85

c) Noise (decibel):
At max rpm: 87
Minus 500 rpm: 85
Minus 1000 rpm: 84
Minus 1500 rpm: 79
Minus 2000 rpm: 78

d) Acceleration (sek):
0-30 knots: 8,9
15-30 knots: 5,4

Yamaha F150
Top RPM in test: 5600
Prop used: Yamaha Pro Series, 3 blade, 21 inch pitch

a) Speed (knots):
At max rpm: 44,3
Minus 500 rpm: 40,3
Minus 1000 rpm: 35,4
Minus 1500 rpm: 31,7
Minus 2000 rpm: 26,0

b) Fuel consumtion (litre per nautical miles):
At max rpm: 1,26
Minus 500 rpm: 1,10
Minus 1000 rpm: 0,95
Minus 1500 rpm: 0,84
Minus 2000 rpm: 0,78

c) Noise (decibel):
At max rpm: 87
Minus 500 rpm: 84
Minus 1000 rpm: 83
Minus 1500 rpm: 80
Minus 2000 rpm: 79

d) Acceleration (sek):
0-30 knots: 8,3
15-30 knots: 5,9

Hope this helps

Dave
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Old 20 July 2012, 18:49   #9
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Country: Other
Town: Stanley, Falkland Is
Boat name: Seawolf
Make: Osprey Vipermax 5.8
Length: 5m +
Engine: Etec 150
Join Date: Mar 2006
Posts: 3,688
Old-tech Johnson Faststrike 115 carb 2 stroke on my Humber Destroyer 5.8 used to guzzle about 1.2L/nm on average, never had a flow meter so not sure of the specifics at any speed. It really does depend a lot on the engine technology - my 150 E-TEC burns a lot less than the 115 carb even though it's pushing a boat that's probably heavier...
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Old 21 July 2012, 02:35   #10
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Country: UK - England
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fuel

Quote:
Originally Posted by wellhouse View Post
6.2 metre with yamaha f115. At 25kts about 1ltr/mile
been a bit cruel on the yam figures it was closer to 0.82ltr/mile yesterday
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