Test results from boattest.com

Test Power: 3 x 435-hp Volvo Penta IPS600 D6
 Range 
RPM MPH Knots Total GPH MPG NMPG Stat. Mile NM KM KPH LPH KPL dBA
600 5.6 4.8 1.1 5.3 4.6 2474 2151.1 3982 9.00 4.16 2.25 64
1000 8.9 7.7 2.7 3.4 2.9 1572 1366.8 2530 14.30 10.22 1.45 68
1250 10.7 9.3 5.5 1.9 1.7 910 791.7 1465 17.20 20.82 0.81 72
1500 12.5 10.9 9.2 1.4 1.2 636 552.9 1024 20.10 34.83 0.60 72
1750 16.2 14.0 12.5 1.3 1.1 605 525.8 974 26.10 47.32 0.55 72
2000 20.5 17.8 16.0 1.3 1.1 598 520.1 962 33.00 60.57 0.55 74
2250 24.9 21.6 21.5 1.2 1.0 541 470.4 871 40.10 81.39 0.51 77
2500 29.5 25.6 27.5 1.1 0.9 501 435.8 806 47.50 104.10 0.47 77
2750 33.3 29.0 35.0 1.0 0.8 445 387.2 716 53.60 132.49 0.43 78
3000 36.9 32.1 40.5 0.9 0.8 426 370.8 686 59.40 153.31 0.38 79
3250 40.8 35.5 51.0 0.8 0.7 374 325.6 602 65.70 193.06 0.34 82
3500 42.4 36.9 60.0 0.7 0.6 331 287.6 533 68.20 227.12 0.30 84
3570 46.0 40.0 67.0 0.7 0.6 321 279.4 517 74.00 253.62 0.30 84

 

All fuel consumption numbers are the total for all engines in the boat. Speeds are measured with Stalker ProSports radar gun or GPS. Fuel consumption (gallons per hour) measured with Floscan digital fuel-flow meter or by on-board factory-installed diagnostic instruments. Range is based on 90% of published fuel capacity. Sound levels determined using Radio Shack digital decibel meter on A scale. 68 dBA is the level of normal conversation. Time to plane is measured from start of acceleration to formation of rooster tail behind boat.

Test Conditions

Time To Plane: 5.2 sec.

0 to 30: 8.9 sec.

Test Power: 3 x 435-hp Volvo Penta IPS600 D6

Transmission: N/A

Ratio: N/A

Props: N/A

Load: 4 persons, 1/2 fuel, 1/3 water, 50 lbs. of gear

Climate: 72 deg., 65 humid.; wind: 0-0 mph; seas: calm

Elevation: 36

Test results from Power and Motoryacht

MJM 50z - Final Boat Test Numbers
RPM Knots GPH Range dB(A)
600 4.1 1.1 1,744 69
1000 7.2 3.3 1,021 77
1500 11.1 9.9 525 75
2000 17.5 19.4 422 77
2500 25.3 30.1 393 79
3000 32.4 46.8 324 82
3400 37.6 65.0 271 86

 

Test Conditions

Conditions During Boat Test
Air temperature: 85°F; humidity: 75%; seas: 1-2'; wind: 7 knots

Load During Boat Test
265 gal. fuel, 130 gal. water, 2 persons, 200 lb. gear.

Test Boat Specifications
Test Engine: 3/435-hp Volvo Penta IPS600s

Transmission/Ratio
Volvo Penta IPS, 1.82:1 gear ratio

Props
IPS T6 propset

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