Bell 412 vs Robinson R66: 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

BHelicopters

Robinson R66

Light utility and trainer helicopter

Credit

Alan Wilson · CC BY-SA 2.0 · Resized · CC BY-SA 2.0 · 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 ↗

Robinson R66Length

8.99 m

Length source ↗

Lengths retain their source configuration and measurement scope.

Measured figures

Head to head

18 of 34 rows sourced on both sides

17.09mBell 412EP · including rotors

8.99m

Length

All recorded figures & sources

17.09 m

Bell 412EP · including rotors

Single source

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

8.99 m

Length

Single source

29 ft 6 in (8.99 m)^[source]

—

1.47m

Width

All recorded figures & sources

1.47 m

Width

Single source

4 ft 10 in (1.47 m)^[source]

14.02mBell 412EP · Main rotor diameter

10mMain 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]

10 m

Main rotor diameter

Single source

33 ft (10 m)^[source]

4.57mBell 412EP · Height

3.48m

Height

All recorded figures & sources

4.57 m

Bell 412EP · Height

Single source

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

3.48 m

Height

Single source

11 ft 5 in (3.48 m)^[source]

5.4t

1.2tGross; Gross weight

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]

585 kg

Empty; Empty weight

Single source

1,225 kg

Gross; Gross weight

Single source

1,290 lb (585 kg)

one-two pilots

Crew

All recorded figures & sources

one-two pilots^[source]

1 people

Crew

Single source

1^[source]

260km/hMaximum; Bell 412EP · Maximum speed

200km/hCruise; Cruise speed

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]

200 km/h

Cruise; Cruise speed

Single source

110 kn (130 mph, 200 km/h)^[source]

980kmBell 412EP · Range

650km

Range

All recorded figures & sources

980 km

Bell 412EP · Range

Single source

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

650 km

Range

Single source

350 nmi (400 mi, 650 km)^[source]

930kW

200kW) takeoff (5 minutes

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]

167 kW

1 × Rolls-Royce RR300 turboshaft , 224 shp ( ) continuous, 270 shp (

Single source

200 kW

) takeoff (5 minutes

Single source

1 × Rolls-Royce RR300 turboshaft , 224 shp (167 kW) continuous, 270 shp (200 kW) takeoff (5 minutes)^[source]

6,100mBell 412EP · Service ceiling

4,300m

Service ceiling

All recorded figures & sources

6,100 m

Bell 412EP · Service ceiling

Single source

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

4,300 m

Service ceiling

Single source

14,000 ft (4,300 m)^[source]

6.9m/sBell 412EP · 1,350 ft/min (

5.1m/s1,000 ft/min (

Rate of climbScopes differ

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]

5.1 m/s

1,000 ft/min (

Single source

1,000 ft/min (5.1 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 Robinson R66 configuration
Specification	Bell 412	Robinson R66
Type	Multipurpose utility helicopter^[source]	Light utility and trainer helicopter^[source]
National origin	United States / Canada^[source]	—
Manufacturer	Bell Helicopter^[source]	Robinson Helicopter Company^[source]
Primary users	Japan Ground Self Defence Force See Operators for others^[source]	—
Number built	1,300+^[source]	1500 (2024)^[source]
Manufactured	1979–present^[source]	2007–present^[source]
Introduction date	1981 ( 1981 )^[source]	2010 (FAA certification)^[source]
First flight	August 1979 ( 1979-08 )^[source]	7 November 2007^[source]
Developed from	Bell 212^[source]	Robinson R44^[source]
Variant	Bell CH-146 Griffon^[source]	—
Capacity	up to 13 passengers, maximum external load of almost 6,614 lb (3,000 kg)^[source]	4 passengers or 1,200 lb (540 kg) external load^[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]	—
Power/mass	0.2663 hp/lb (0.4378 kW/kg)^[source]	—
Designer	—	Frank D. Robinson^[source]
Status	—	In production, in service^[source]
Developed into	—	Robinson R88^[source]
Fuel capacity	—	73.6 US gallons (279 L)^[source]
Tail rotor Diameter	—	5 ft (1.52 m)^[source]
Never exceed speed	—	140 kn (160 mph, 260 km/h)^[source]
Fuel consumption	—	23 US gallons (87 L) per hour^[source]

FORCETALLY

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Bell 412

Robinson R66

Type

Multipurpose utility helicopter^[source]

Light utility and trainer helicopter^[source]

National origin

United States / Canada^[source]

—

Manufacturer

Bell Helicopter^[source]

Robinson Helicopter Company^[source]

Primary users

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

—

Number built

1,300+^[source]

1500 (2024)^[source]

Manufactured

1979–present^[source]

2007–present^[source]

Introduction date

1981 ( 1981 )^[source]

2010 (FAA certification)^[source]

First flight

August 1979 ( 1979-08 )^[source]

7 November 2007^[source]

Developed from

Bell 212^[source]

Robinson R44^[source]

Variant

Bell CH-146 Griffon^[source]

—

Capacity

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

4 passengers or 1,200 lb (540 kg) external load^[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]

—

Power/mass

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

—

Designer

—

Frank D. Robinson^[source]

Status

—

In production, in service^[source]

Developed into

—

Robinson R88^[source]

Fuel capacity

—

73.6 US gallons (279 L)^[source]

Tail rotor Diameter

—

5 ft (1.52 m)^[source]

Never exceed speed

—

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

Fuel consumption

—

23 US gallons (87 L) per hour^[source]