Fuel Charts

Please note that these figures may vary from boat to boat.

If anyone can help me with a fuel consumption chart for any of the other engines I would really like to hear from you e-mail.

Caterpillar 3208 (RNLI)

Knots	RPM	Miles/Gallon	Gallons/Hour	Endurance	Hours Run
9	1708	2.06	4.37	571	63.4
10	2051	1.348	7.42	373	37.3
11	2338	1.017	10.82	282	25.6
12	2545	0.879	13.65	243	20.3
12.36	2600	0.857	14.43	237	19.2
13	2679	0.836	15.55	231	17.8
14	2777	0.824	17	228	16.3
14.51	2821	0.818	17.73	226	15.6

Trial Data

Performed on: 44-001

Reduction Gear: 2.96 : 1

Propellers: 30" Dia x 25 1/4" Pitch

Usable Fuel Capacity: 277 Gallons

Radius of Action = Half Total Distance

Mile = Nautical Mile
Total Distance and Hours Run done on Full Tanks

Caterpillar 3208T (RNLI)

Knots	RPM	Miles/Gallon	Gallons/Hour	Endurance	Hours Run
9.101	1760	1.5	6.07	429.5	47.2
10	2043	1.03	9.69	295.7	29.57
11	2299	0.78	14.05	224.3	20.39
12	2494	0.67	17.97	191.3	15.94
12.7	2600	0.63	20.24	179.8	14.16
13	2640	0.62	21.09	176.6	13.58
14	2754	0.6	23.5	170.7	12.19
14.894	2839	0.59	25.29	168.7	11.33

Trial Data

Performed on: 44-010

Reduction Gear: 2.5 : 1

Propellers: 28" x 24.125" Pitch 4 Blade

Usable Fuel Capacity: 286.5 Gallons

Radius of Action = Half Total Distance

Mile = Nautical Mile
Total Distance and Hours Run done on Full Tanks

Cummins V6-200 (US Coast Guard)

Knots	RPM	Gallons/Mile	Endurance
8	1390	0.56	537
9	1788	0.68	435
10	2158	1.08	290
11	2430	1.45	210
12	2632	1.66	180
13	2777	1.76	168
14	2893	1.82	164
15	2993	1.84	163

Trial Data

Performed on: 44304

Draft Fwd: 3' 2 7/8"

Draft Aft: 3' 3"

Displacement: 16.25 Tons

Date of Trial: 12-11-62

Wind and Sea: 5 to 8 Mph. - Calm

Course: Kent Island

Total Fuel: 333 Gals.

Useable Fuel: 301 Gals.

Eng. to Shaft Ratio = 3.02 Avg.

General Motors/Detroit Diesels 6V-53 (US Coast Guard)

Knots	Approx RPM	Gallons/Mile	Gallons/Hour	Endurance
3.8	800	0.265	1.2	1565
5.7	1000	0.329	2.1	1001
6.8	1200	0.41	3.2	782
8	1400	0.545	4.3	550
8.3	1600	0.855	7.2	449
8.9	1800	1.016	9.1	295
9.5	2000	1.118	10.8	268
10.1	2200	1.232	12.3	243
10.8	2400	1.816	21	165
11.3	2600	1.821	23.1	164
14.4	2800	1.922	26.24	163

Trial Data

Performed on: 44376

Date: 18th May 1993

Sea: Calm