Northwest Jet 21 Lightning OB Soft Top - BF225 Testing Data

Performance Criteria
Single BF225

Manufacturer: Northwest Jet
Model: Jet 21 Lightning
OB Soft Top
Length: 21'
Beam: 8' 6"
Weight: 2,750 lbs.
Max HP: 250
Fuel Capacity: 70 gal.


Power: Single BF225
Horsepower: 225
Displacement: 3.5 L
Weight: 589 lbs.
Gear Ratio: 1.86:1
Mounting Height: Bottom
Prop. (Material/Blades) Stainless (3)
Prop. Manufacturer Powertech
Prop. (Dia/Pitch) 15 1/4 x 19


Test Conditions
No. of People: 2
Fuel Load 35 gal.
Total Weight: 4,053 lbs.
Air Temperature: 65oF
Test Conditions: Calm
Elevation: 400'
Wind Velocity: 0-5 mph

RPM MPH GPH MPG
Idle 3.6 .6 6
1000 5.2 .7 6.5
1500 7.3 1.4 5.2
2000 9.8 2.5 3.9
2500 17.1 3.2 5.3
3000 25.2 4.5 5.6
3500 29.9 5.8 5.2
4000 34.6 7.3 4.7
4500 38.7 9.6 4
5000 43 15.3 2.8
5500 47.1 17.3 2.7
6000 49.9 18.5 2.7
WOT
(6300)
51.6 20.1 2.6

Time to Plane: 3.69 Seconds

Acceleration 0~20 MPH: 4.25 Seconds

Data may vary due to changes in weather,
elevation and load conditions. Speed
data gathered by GPS receiver

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