115 hp fuel consumtion.

[blueboy758]

So who has an engine similar size on there rib.

What size boat and fuel usage ish ?!?

Phil

[wellhouse]

6.2 metre with yamaha f115. At 25kts about 1ltr/mile

[jyasaki]

18' aluminum hull; F115 = about 4mpg.

jky

[Markyboyo]

5.5m Humber Destroyer with E-tec 115hp, Getting about 1.3 Nm/L @25knts.

Drops to about 1Nm/L @30knts.

[blueboy758]

My Ficht seems to be doing 1l/m on 5.2 offshore with 4 divers slight sea and about 23-25 mph.

[thomas]

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.

[AK2AZ]

Older 115 2-stroke Zodiac 530 loaded with 60 gal of fuel gets 5 gal/hr at 30mph.

[clydeoutboards]

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

[BogMonster]

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...

[wellhouse]

Originally Posted by wellhouse

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

[blueboy758]

Well I've just got back from 5 days in Oban... Now it seems to be rib 115 (Ficht) 5 divers twin cylinders each and 24 mph .93l per mile which it was driven easy but I was chuffed with that !