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At a glance
Measured figures
CH-46E · fuselage
Single source44 ft 10 in (13.67 m) (fuselage)[source]
F28F · Length
Configuration
| Specification | Boeing Vertol CH-46 Sea Knight | Enstrom F-28 |
|---|---|---|
| Crew | 5: two pilots, one crew chief, one aerial gunner/observer, one tail gunner[source] | one[source] |
| Type | Transport helicopter[source] | Light helicopter[source] |
| National origin | United States[source] | — |
| Manufacturer | Vertol Aircraft Corp. Boeing Vertol[source] | Enstrom Helicopter Corporation[source] |
29 ft 3 in (8.92 m)[source]
Empty; CH-46E · Empty weight
Single sourceGross; CH-46E · Gross weight
Single sourceMaximum take-off; CH-46E · Max takeoff weight
Single source15,537 lb (7,047 kg)[source]
24,300 lb (11,022 kg)[source]
24,300 lb (11,022 kg)[source]
Empty; F28F · Empty weight
Single sourceMaximum take-off; F28F · Max takeoff weight
Single sourceCruise; CH-46E · maximum at sea level
Single sourceMaximum; CH-46E · at sea level
Single source144 kn (166 mph, 267 km/h) at sea level[source]
143 kn (165 mph, 265 km/h) maximum at sea level[source]
Cruise; F28F · econ cruise
Single sourceMaximum; F28F · Maximum speed
Single sourceCH-46E · 2 × General Electric T58-GE-16 turboshaft engines, 1,870 shp ( ) each
Single source2 × General Electric T58-GE-16 turboshaft engines, 1,870 shp (1,390 kW) each[source]
F28F · 1 × Lycoming HIO-360-F1AD four-cylinder, direct-drive, horizontally opposed, air-cooled, piston aircraft engine
Single source1 × Lycoming HIO-360-F1AD four-cylinder, direct-drive, horizontally opposed, air-cooled, piston aircraft engine, 225 hp (168 kW)[source]
F28F · Endurance
Single source3 hr 30 min[source]
Bars compare reported quantities only. A larger figure does not make a system better; configurations and test conditions differ.
| Status | In limited service[source] | — |
|---|
| Primary users | United States Marine Corps (historical) United States Navy (historical) Japan Self-Defense Forces (historical)[source] | — |
|---|
| Number built | H-46: 524[source] | — |
|---|
| Manufactured | 1962–1971[source] | 1965-present[source] |
|---|
| Introduction date | 1964[source] | 1965[source] |
|---|
| First flight | 22 April 1958 (V-107)[source] | — |
|---|
| Retired | 2004 (US Navy) 2015 (US Marine Corps)[source] | — |
|---|
| Developed into | Boeing CH-47 Chinook Boeing Model 360[source] | Enstrom 480[source] |
|---|
| Capacity | 24 troops or 15 stretchers and two attendants or 7,000 lb (3,200 kg)[source] | two passengers[source] |
|---|
| Fuel capacity | 350 US gal (290 imp gal; 1,300 L) internal[source] | — |
|---|
| Guns | Two door-mounted 0.5 in (12.7 mm) GAU-15/A machine guns (optional), one ramp-mounted 7.62 mm (0.30 in) M240D machine gun (optional)[source] | — |
|---|
| Main rotor area | 3,926.99 sq ft (364.829 m 2 )[source] | 804 sq ft (74.7 m 2 ) NACA 0013.5[source] |
|---|
| Rotor blade section | root: Boeing VR-7; tip: Boeing VR-8[source] | — |
|---|
| Hover ceiling IGE | 9,500 ft (2,900 m)[source] | — |
|---|
| Hover ceiling OGE | 5,750 ft (1,750 m)[source] | — |
|---|
| Disk loading | 4.43 lb/sq ft (21.6 kg/m 2 )[source] | — |
|---|
| Power/mass | 0.215 hp/lb (0.353 kW/kg)[source] | — |
|---|
| Variants | — | Enstrom TH180 Spitfire Mark I[source] |
|---|
| Country of origin | — | Vereinigte Staaten[source]Country of design · Entwurfsland |
|---|