mickp
New member
What is the approx deisel fuel usage of a BMC 1500 at say 1800 revs. I have seen Gals / hour figures quoted for various engines. Boat is 33 ft, 5000 Kgs. Thanks.
Deisel Gals / Hour
- Thread starter mickp
- Start date
G
Guest
Guest
Re: Diesel Gals / Hour
I've been told a good rule of thumb is 0.2 liters per HP per hour
I've been told a good rule of thumb is 0.2 liters per HP per hour
Jcorstorphine
Well-known member
I work on 1 gallon per 20 HP per hour for this type of engine.
John C.
John C.
coliholic
New member
I had the BMC 1800 diesel in my Freeman 27 and at 1800 rpm it would do 8-9 knots and burnt 3 litres an hour or 75p an hour. BMC 1500 will be about the same. Expensive boating eh?
claymore
Well-known member
Claymore has a 1.8 BMC engine - she is 30 ft LOA.
I use 1 gallon every 2 hours - rain or shine- motorsailing or motoring.
My ideal cruising revs are 1600
regards
JS
I use 1 gallon every 2 hours - rain or shine- motorsailing or motoring.
My ideal cruising revs are 1600
regards
JS
colin_jones
New member
Over a number of years at 1900 - 2000 rpm our BMC 2.2 burned 0.6gph - up-hill, downhill and in all sorts of weather.
PeteMcK
New member
Sounds like a Moody 33?
Depends on your prop. Twisted 3-blader good. Folding two blade poor. In light conditions, 0.5 gph; in heavy going with the folder at, say, 2400 rpm, up to almost 1.5 gph. I figured on about 2/3 of a gph on average at 6.5 knots with the 3-blade, a gallon with the folder.
Depends on your prop. Twisted 3-blader good. Folding two blade poor. In light conditions, 0.5 gph; in heavy going with the folder at, say, 2400 rpm, up to almost 1.5 gph. I figured on about 2/3 of a gph on average at 6.5 knots with the 3-blade, a gallon with the folder.