Bell 412 vs Kawasaki OH-1: Specs Compared

Bell 412 — licensed reference photograph

AHelicopters

Bell 412

Multipurpose utility helicopter

Credit

Sardaka · CC BY-SA 4.0 · Resized · CC BY-SA 4.0 · Source ↗ · Modified

Kawasaki OH-1 — licensed reference photograph

BHelicopters

Kawasaki OH-1

Scout/observation helicopter

Credit

陸上自衛隊 · CC BY 4.0 · Resized · CC BY 4.0 · Source ↗ · Modified

First system

Second system

At a glance

Side by side

Length comparisonOne shared metre scale

Bell 412Bell 412EP · including rotors

17.09 m

Length source ↗

Kawasaki OH-1Kawasaki OH-1 · Length

13.4 m

Length source ↗

Lengths retain their source configuration and measurement scope.

Measured figures

Head to head

17 of 28 rows sourced on both sides

17.09mBell 412EP · including rotors

13.4mKawasaki OH-1 · Length

LengthScopes differ

All recorded figures & sources

17.09 m

Bell 412EP · including rotors

Single source

56 ft 1 in (17.09 m) including rotors^[source]

13.4 m

Kawasaki OH-1 · Length

Single source

12 m

OH-1 · Length

Single source

12 m (39 ft 4 in)^[source]

13.40m^[source]Kawasaki OH-1

14.02mBell 412EP · Main rotor diameter

11.6mOH-1 · Main rotor diameter

Rotor diameterScopes differ

All recorded figures & sources

14.02 m

Bell 412EP · Main rotor diameter

Single source

46 ft 0 in (14.02 m)^[source]

11.6 m

OH-1 · Main rotor diameter

Single source

11.6 m (38 ft 1 in)^[source]

4.57mBell 412EP · Height

3.8mKawasaki OH-1 · Height

HeightScopes differ

All recorded figures & sources

4.57 m

Bell 412EP · Height

Single source

15 ft 0 in (4.57 m)^[source]

3.8 m

Kawasaki OH-1 · Height

Single source

3.8 m

OH-1 · Height

Single source

3.8 m (12 ft 6 in)^[source]

3.80m^[source]Kawasaki OH-1

5.4t

MassScopes differ

All recorded figures & sources

3,079 kg

Empty; Bell 412EP · Empty weight

Single source

5,398 kg

Maximum take-off; Bell 412EP · Max takeoff weight

Single source

6,789 lb (3,079 kg)^[source]

11,900 lb (5,398 kg)^[source]

2,450 kg

Empty; OH-1 · Empty weight

Single source

4,000 kg

Maximum take-off; OH-1 · Max takeoff weight

Single source

2,450 kg (5,401 lb)^[source]

4,000 kg (8,818 lb)^[source]

one-two pilots

2Kawasaki OH-1 · Crew

Crew

All recorded figures & sources

one-two pilots^[source]

2 people

Kawasaki OH-1 · Crew

Single source

2 people

OH-1 · pilot and observer

Single source

2 (pilot and observer)^[source]

2人^[source]Kawasaki OH-1

260km/hMaximum; Bell 412EP · Maximum speed

280km/h

SpeedScopes differ

All recorded figures & sources

226 km/h

Cruise; Bell 412EP · Cruise speed

Single source

260 km/h

Maximum; Bell 412EP · Maximum speed

Single source

140 kn (160 mph, 260 km/h)^[source]

122 kn (140 mph, 226 km/h)^[source]

220 km/h

Cruise; OH-1 · Cruise speed

Single source

280 km/h

Maximum; Kawasaki OH-1 · 約 · Approximate (約)

Single source

278 km/h

Maximum; OH-1 · Maximum speed

Single source

278 km/h (173 mph, 150 kn)^[source]

220 km/h (140 mph, 120 kn)^[source]

約280km/h^[source]Kawasaki OH-1 · Approximate (約)

980kmBell 412EP · Range

720kmFerry; OH-1 · Ferry range

RangeScopes differ

All recorded figures & sources

980 km

Bell 412EP · Range

Single source

529 nmi (609 mi, 980 km)^[source]

720 km

Ferry; OH-1 · Ferry range

Single source

550 km

Kawasaki OH-1 · 約 · Approximate (約)

Single source

550 km

OH-1 · Range

Single source

550 km (340 mi, 300 nmi)^[source]

720 km (450 mi, 390 nmi)^[source]

約550km^[source]Kawasaki OH-1 · Approximate (約)

930kW

660kW

PowerScopes differ

All recorded figures & sources

930 kW

Bell 412EP · 1 × Pratt & Whitney Canada PT6T-3D Twin-Pac or PT6T-3DF Twin-Pac coupled turboshaft engine - each, 1,250 shp (

Single source

1 × Pratt & Whitney Canada PT6T-3D Twin-Pac or PT6T-3DF Twin-Pac coupled turboshaft engine - each, 1,250 shp (930 kW)^[source]

660 kW

OH-1 · 2 × Mitsubishi TS1-M-10 turboshaft engines each

Single source

2 × Mitsubishi TS1-M-10 turboshaft engines, 660 kW (890 hp) each^[source]

6,100mBell 412EP · Service ceiling

4,880mKawasaki OH-1 · 約 · Approximate (約)

Service ceilingScopes differ

All recorded figures & sources

6,100 m

Bell 412EP · Service ceiling

Single source

20,000 ft (6,100 m)^[source]

4,880 m

Kawasaki OH-1 · 約 · Approximate (約)

Single source

4,880 m

OH-1 · Service ceiling

Single source

4,880 m (16,010 ft)^[source]

約4,880m^[source]Kawasaki OH-1 · Approximate (約)

6.9m/sBell 412EP · 1,350 ft/min (

—

Rate of climb

All recorded figures & sources

6.9 m/s

Bell 412EP · 1,350 ft/min (

Single source

1,350 ft/min (6.9 m/s)^[source]

Bars compare reported quantities only. A larger figure does not make a system better; configurations and test conditions differ.

Configuration

Details

Bell 412 and Kawasaki OH-1 configuration
Specification	Bell 412	Kawasaki OH-1
Type	Multipurpose utility helicopter^[source]	Scout/observation helicopter^[source]
National origin	United States / Canada^[source]	Japan^[source]
Manufacturer	Bell Helicopter^[source]	Kawasaki Aerospace Company^[source]
Primary users	Japan Ground Self Defence Force See Operators for others^[source]	—
Number built	1,300+^[source]	38 as of 2013^[source]
Manufactured	1979–present^[source]	1996–2013^[source]
Introduction date	1981 ( 1981 )^[source]	2000^[source]
First flight	August 1979 ( 1979-08 )^[source]	6 August 1996^[source]
Developed from	Bell 212^[source]	—
Variant	Bell CH-146 Griffon^[source]	—
Capacity	up to 13 passengers, maximum external load of almost 6,614 lb (3,000 kg)^[source]	—
Fuselage length	43 ft (13 m)^[source]	—
Blade sections	root: Boeing VR-7; tip: Wortmann FX 71-H-080^[source]	—
Main rotor area	1,662 sq ft (154.4 m 2 )^[source]	105.7 m 2 (1,138 sq ft)^[source]
Power/mass	0.2663 hp/lb (0.4378 kW/kg)^[source]	—
Status	—	In service^[source]
Primary user	—	Japan Ground Self-Defense Force^[source]
Hardpoints	—	4 × hardpoints under stub wings for auxiliary fuel tanks (inner hardpoints) and Type 91 air-to-air missiles (outer hardpoints)^[source]

FORCETALLY

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Bell 412

Kawasaki OH-1

Type

Multipurpose utility helicopter^[source]

Scout/observation helicopter^[source]

National origin

United States / Canada^[source]

Japan^[source]

Manufacturer

Bell Helicopter^[source]

Kawasaki Aerospace Company^[source]

Primary users

Japan Ground Self Defence Force See Operators for others^[source]

—

Number built

1,300+^[source]

38 as of 2013^[source]

Manufactured

1979–present^[source]

1996–2013^[source]

Introduction date

1981 ( 1981 )^[source]

2000^[source]

First flight

August 1979 ( 1979-08 )^[source]

6 August 1996^[source]

Developed from

Bell 212^[source]

—

Variant

Bell CH-146 Griffon^[source]

—

Capacity

up to 13 passengers, maximum external load of almost 6,614 lb (3,000 kg)^[source]

—

Fuselage length

43 ft (13 m)^[source]

—

Blade sections

root: Boeing VR-7; tip: Wortmann FX 71-H-080^[source]

—

Main rotor area

1,662 sq ft (154.4 m 2 )^[source]

105.7 m 2 (1,138 sq ft)^[source]

Power/mass

0.2663 hp/lb (0.4378 kW/kg)^[source]

—

Status

—

In service^[source]

Primary user

—

Japan Ground Self-Defense Force^[source]

Hardpoints

—

4 × hardpoints under stub wings for auxiliary fuel tanks (inner hardpoints) and Type 91 air-to-air missiles (outer hardpoints)^[source]