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A Factual Report From Mercury Marine

Boat House Bulletin Review

Engine:

Single 40 hp EFI FourStroke

Boat:

Lowe - Roughneck 1860

Prop:

Black Max®

40 hp EFI
Select Units:

Performance Summary

Best Fuel Economy (MPG@RPM) Best Fuel Economy (KM/L@RPM) Best Fuel Economy (L/nm@RPM)
  • 12.4 @ 4000
  • 5.3 @ 4000
  • 2.8 @ 4000
Top Speed (MPH@RPM) Top Speed (KPH@RPM) Top Speed (kts@RPM)
  • 29.8 @ 5750
  • 48.0 @ 5750
  • 25.9 @ 5750
Acceleration 0 - 20 MPH (seconds)
  • 9.2
RPM Range Speed (MPH) Speed (KPH) Speed (KN) Fuel (GPH) Fuel (LPH) Fuel (MPG) Fuel (KM/L) Fuel (NM/L) Range (miles) Range (km) Range (nm) Sound (dBA)
1000 3.3 5.3 2.9 0.2 0.8 16.5 7.0 3.8 - - - -
2000 6.0 9.7 5.2 0.6 2.3 10.0 4.3 2.3 - - - -
3000 11.1 17.9 9.6 1.3 4.9 8.5 3.6 1.9 - - - -
3500 16.8 27.0 14.6 1.4 5.3 12.0 5.1 2.8 - - - -
4000 21.1 34.0 18.3 1.7 6.4 12.4 5.3 2.8 - - - -
4500 24.7 39.8 21.5 2.2 8.3 11.2 4.8 2.6 - - - -
5000 27.8 44.7 24.2 2.8 10.6 9.9 4.2 2.3 - - - -
5500 29.0 46.7 25.2 3.4 12.9 8.5 3.6 1.9 - - - -
5750 29.8 48.0 25.9 3.8 14.4 7.8 3.3 1.8 - - - -

Performance Curve

GPH MPH MPG
LPH KPH KML
LPH KN NML

Test Conditions

Test Date
  • 2014-06-04
Test Conductor
  • BC
Elevation
  • 915 ft
  • 279 m
Air Temperature
  • 87 °F
  • 31 °C
Wind Velocity
  • 0 - 10 MPH
  • 0 - 16 KPH
  • 0 - 9 kts
Water Type
  • Fresh
Fuel Level at Testing
  • 4 gallons
  • 15 liters

Engine Specifications

Number of Engines
  • Single
Engine
  • 40 hp EFI FourStroke
HP / kW
  • 40 / 30
Engine type
  • Inline 3
Gearcase ratio
  • 2.00:1

Boat Specifications

Manufacturer
  • Lowe
Website
Boat Model
  • Roughneck 1860
Boat Type
  • Jon / Utility
Material
  • Aluminum
Length
  • 18 ft
  • 5.5 m
Beam
  • 7 ft 1 in
  • 2.2 m
Max HP Capacity
  • 60
Steering Type
  • Tiller
Dry Boat Weight
  • 601 pounds
  • 272.6 kg
Mounting Bolt Hole
  • 1

Propeller Specifications

Part Number
  • 73136A45
Mercury Name
  • Black Max®
Material
  • Mercalloy
Diameter / Pitch
  • 10.375 / 13.0
Number of Blades
  • 3
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