Enstrom F-28 vs Robinson R66: Specs Compared

Enstrom F-28 — licensed reference photograph

AHelicopters

Enstrom F-28

Light helicopter

Credit

Original uploader was User:Ahunt at en:wikipedia · Public domain · Resized · Public domain · 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

Enstrom F-28F28F · Length

8.92 m

Length source ↗

Robinson R66Length

8.99 m

Length source ↗

Lengths retain their source configuration and measurement scope.

Measured figures

Head to head

16 of 31 rows sourced on both sides

8.92mF28F · Length

8.99m

Length

All recorded figures & sources

8.92 m

F28F · Length

Single source

29 ft 3 in (8.92 m)^[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]

9.75mF28F · Main rotor diameter

10mMain rotor diameter

Rotor diameterScopes differ

All recorded figures & sources

9.75 m

F28F · Main rotor diameter

Single source

32 ft 0 in (9.75 m)^[source]

10 m

Main rotor diameter

Single source

33 ft (10 m)^[source]

2.74mF28F · Height

3.48m

Height

All recorded figures & sources

2.74 m

F28F · Height

Single source

9 ft 0 in (2.74 m)^[source]

3.48 m

Height

Single source

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

1.2t

1.2tGross; Gross weight

MassScopes differ

All recorded figures & sources

712 kg

Empty; F28F · Empty weight

Single source

1,179 kg

Maximum take-off; F28F · Max takeoff weight

Single source

1,570 lb (712 kg)^[source]

2,600 lb (1,179 kg)^[source]

585 kg

Empty; Empty weight

Single source

1,225 kg

Gross; Gross weight

Single source

1,290 lb (585 kg)^[source]

2,700 lb (1,225 kg)^[source]

one

Crew

All recorded figures & sources

one^[source]

1 people

Crew

Single source

1^[source]

180km/hMaximum; F28F · Maximum speed

200km/hCruise; Cruise speed

SpeedScopes differ

All recorded figures & sources

165 km/h

Cruise; F28F · econ cruise

Single source

180 km/h

Maximum; F28F · Maximum speed

Single source

97 kn (112 mph, 180 km/h)^[source]

89 kn (102 mph, 165 km/h) (econ cruise)^[source]

200 km/h

Cruise; Cruise speed

Single source

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

446kmF28F · Range

650km

Range

All recorded figures & sources

446 km

F28F · Range

Single source

241 nmi (277 mi, 446 km)^[source]

650 km

Range

Single source

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

168kW

200kW) takeoff (5 minutes

PowerScopes differ

All recorded figures & sources

168 kW

F28F · 1 × Lycoming HIO-360-F1AD four-cylinder, direct-drive, horizontally opposed, air-cooled, piston aircraft engine

Single source

1 × Lycoming HIO-360-F1AD four-cylinder, direct-drive, horizontally opposed, air-cooled, piston aircraft engine, 225 hp (168 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]

3.5hF28F · Endurance

—

Endurance

All recorded figures & sources

3.5 h

F28F · Endurance

Single source

3 hr 30 min^[source]

3,700mF28F · Service ceiling

4,300m

Service ceiling

All recorded figures & sources

3,700 m

F28F · Service ceiling

Single source

12,000 ft (3,700 m)^[source]

4,300 m

Service ceiling

Single source

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

7.4m/sF28F · 1,450 ft/min (

5.1m/s1,000 ft/min (

Rate of climbScopes differ

All recorded figures & sources

7.4 m/s

F28F · 1,450 ft/min (

Single source

1,450 ft/min (7.4 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

Enstrom F-28 and Robinson R66 configuration
Specification	Enstrom F-28	Robinson R66
Type	Light helicopter^[source]	Light utility and trainer helicopter^[source]
Manufacturer	Enstrom Helicopter Corporation^[source]	Robinson Helicopter Company^[source]
Manufactured	1965-present^[source]	2007–present^[source]
Introduction date	1965^[source]	2010 (FAA certification)^[source]
Variants	Enstrom TH180 Spitfire Mark I^[source]	—
Developed into	Enstrom 480^[source]	Robinson R88^[source]
Capacity	two passengers^[source]	4 passengers or 1,200 lb (540 kg) external load^[source]
Main rotor area	804 sq ft (74.7 m 2 ) NACA 0013.5^[source]	—
Country of origin	Vereinigte Staaten^[source]Country of design · Entwurfsland	—
Designer	—	Frank D. Robinson^[source]
Status	—	In production, in service^[source]
Number built	—	1500 (2024)^[source]
First flight	—	7 November 2007^[source]
Developed from	—	Robinson R44^[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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Enstrom F-28

Robinson R66

Type

Light helicopter^[source]

Light utility and trainer helicopter^[source]

Manufacturer

Enstrom Helicopter Corporation^[source]

Robinson Helicopter Company^[source]

Manufactured

1965-present^[source]

2007–present^[source]

Introduction date

1965^[source]

2010 (FAA certification)^[source]

Variants

Enstrom TH180 Spitfire Mark I^[source]

—

Developed into

Enstrom 480^[source]

Robinson R88^[source]

Capacity

two passengers^[source]

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

Main rotor area

804 sq ft (74.7 m 2 ) NACA 0013.5^[source]

—

Country of origin

Vereinigte Staaten^[source]Country of design · Entwurfsland

—

Designer

—

Frank D. Robinson^[source]

Status

—

In production, in service^[source]

Number built

—

1500 (2024)^[source]

First flight

—

7 November 2007^[source]

Developed from

—

Robinson R44^[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]