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Boat House Bulletin Review

A Factual Report From Mercury Marine
Engine:

Single 200 hp Pro FourStroke Verado®

Boat:

Sea Ray - 21 SPX OB

Prop:

Tempest® Plus

200 hp Pro FourStroke
Select Units:

Performance Summary

Top Speed (MPH@RPM) Top Speed (KPH@RPM) Top Speed (kts@RPM)
  • 56.3 @ 6250
  • 90.6 @ 6250
  • 48.9 @ 6250
Acceleration 0 - 20 MPH (seconds)
  • 5.45
Acceleration 0 - 30 MPH (seconds)
  • 7.85
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 5.1 8.2 4.4 1.0 3.8 5.1 2.2 1.2 - - - -
2000 7.9 12.7 6.9 3.1 11.7 2.5 1.1 0.6 - - - -
3000 15.3 24.6 13.3 5.5 20.8 2.8 1.2 0.6 - - - -
3500 28.9 46.5 25.1 6.4 24.0 4.6 2.0 1.1 - - - -
4000 34.6 55.7 30.1 8.2 31.0 4.2 1.8 1.0 - - - -
4500 40.3 64.9 35.0 10.1 38.2 4.0 1.7 0.9 - - - -
5000 45.0 72.4 39.1 13.0 49.2 3.5 1.5 0.8 - - - -
5500 50.9 81.9 44.2 17.0 64.4 3.0 1.3 0.7 - - - -
6000 55.0 88.5 47.8 20.7 78.4 2.7 1.1 0.6 - - - -
6250 56.3 90.6 48.9 21.3 80.6 2.6 1.1 0.6 - - - -

Performance Curve

GPH MPH MPG
LPH KPH KML
LPH KN NML

Test Conditions

Test Date
  • 2015-07-18
Test Conductor
  • C. Chapman, D. Clarkson
Elevation
  • 600 ft
  • 183 m
Air Temperature
  • 85 °F
  • 29 °C
Wind Velocity
  • 0 - 5 MPH
  • 0 - 8 KPH
  • 0 - 4 kts
Water Type
  • Fresh
Fuel Level at Testing
  • 30 gallons
  • 114 liters
Boat Weight as Tested
  • 4601 lbs
  • 2087 kg

Engine Specifications

Number of Engines
  • Single
Engine
  • 200 hp Pro FourStroke Verado®
HP / kW
  • 200 / 149
Engine type
  • Inline 6
Gearcase ratio
  • 1.85:1

Boat Specifications

Manufacturer
  • Sea Ray
Website
Boat Model
  • 21 SPX OB
Boat Type
  • Runabout - open bow
Material
  • Fiberglass
Length
  • 21 ft
  • 6.4 m
Beam
  • 8 ft 6 in
  • 2.6 m
Max HP Capacity
  • 200
Fuel Tank Capacity
  • 40.0 gallons
  • 151 liters
Steering Type
  • Power Hydraulic
Dry Boat Weight
  • 3400 pounds
  • 1542.2 kg
Mounting Bolt Hole
  • 5

Propeller Specifications

Part Number
  • 825860A47
Mercury Name
  • Tempest® Plus
Material
  • Stainless Steel
Diameter / Pitch
  • 14.625 / 19.0
Number of Blades
  • 3
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