Credit
Sardaka · CC BY-SA 4.0 · Resized · CC BY-SA 4.0 · Source ↗ · Modified
FORCETALLY
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At a glance
Measured figures
Bell 412EP · including rotors
Single source56 ft 1 in (17.09 m) including rotors[source]
480 · Length
Single sourceConfiguration
| Specification | Bell 412 | Enstrom 480 |
|---|---|---|
| Crew | one-two pilots[source] | one[source] |
| Type | Multipurpose utility helicopter[source] | Light helicopter[source] |
| National origin | United States / Canada[source] | — |
| Manufacturer | Bell Helicopter[source] | Enstrom Helicopter Corporation[source] |
| Primary users |
29 ft 10 in (9.09 m)[source]
Bell 412EP · 1 × Pratt & Whitney Canada PT6T-3D Twin-Pac or PT6T-3DF Twin-Pac coupled turboshaft engine - each, 1,250 shp (
Single source1 × Pratt & Whitney Canada PT6T-3D Twin-Pac or PT6T-3DF Twin-Pac coupled turboshaft engine - each, 1,250 shp (930 kW)[source]
480 · 1 × Rolls-Royce Model 250-C20W turboshaft
Single source1 × Rolls-Royce Model 250-C20W turboshaft , 285 hp (215 kW)[source]
Bars compare reported quantities only. A larger figure does not make a system better; configurations and test conditions differ.
Japan Ground Self Defence Force See Operators for others[source] |
| — |
| Number built | 1,300+[source] | 142 (as of July 2011)[source] |
|---|
| Manufactured | 1979–present[source] | 1993–present[source] |
|---|
| Introduction date | 1981 ( 1981 )[source] | 1993[source] |
|---|
| First flight | August 1979 ( 1979-08 )[source] | 7 October 1989[source] |
|---|
| Developed from | Bell 212[source] | Enstrom 280[source] |
|---|
| Variant | Bell CH-146 Griffon[source] | — |
|---|
| Capacity | up to 13 passengers, maximum external load of almost 6,614 lb (3,000 kg)[source] | four passengers[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] | 804 sq ft (74.7 m 2 )[source] |
|---|
| Power/mass | 0.2663 hp/lb (0.4378 kW/kg)[source] | — |
|---|
| Role | — | light helicopter[source] |
|---|
| Source measurement | — | The 480 fuselage consists of a welded steel-tube framework with aluminum cover and tailcone. The pilot controls the aircraft from the left seat, which is unusual for helicopters. The aircraft does not have a hydraulic system; a trim system absorbs rotor feedback and allows the pilot to position the desired stick setting. The 480B engine is capable of producing 420 shp , but in this application it is derated to 305 shp for 5 minutes and 277 continuous shp, which is available to 13,000 MSL on a standard day. Thus hot-temperature or high-altitude operations have a considerable degree of power available. The engine drives a three-bladed rotor of 32 feet diameter and a tail rotor of 5 feet diameter. The main rotor and hubs weigh a total of 300 pounds, so there is considerable inertia in the system during a loss of power. Autorotation landings are uneventful.[source]Enstrom 480 · Design; only the objects and conditions stated in this passage Enhanced and with increased gross weight (3000 lb) and power limits, certified in February 2001 in the US. and in February 2019 in Canada. The gross weight and useful load were increased by approximately 150 pounds.[source]Enstrom 480 · Variants; only the objects and conditions stated in this passage Capacity: four passengers[source]Enstrom 480 · Specifications (480); only the objects and conditions stated in this passage Length: 29 ft 10 in (9.09 m)[source]Enstrom 480 · Specifications (480); only the objects and conditions stated in this passage Height: 9 ft 7 in (2.92 m)[source]Enstrom 480 · Specifications (480); only the objects and conditions stated in this passage Empty weight: 1,675 lb (760 kg)[source]Enstrom 480 · Specifications (480); only the objects and conditions stated in this passage Gross weight: 2,850 lb (1,293 kg)[source]Enstrom 480 · Specifications (480); only the objects and conditions stated in this passage Powerplant: 1 × Rolls-Royce Model 250-C20W turboshaft , 285 hp (215 kW)[source]Enstrom 480 · Specifications (480); only the objects and conditions stated in this passage Main rotor diameter: 32 ft 0 in (9.75 m)[source]Enstrom 480 · Specifications (480); only the objects and conditions stated in this passage Main rotor area: 804 sq ft (74.7 m 2 )[source]Enstrom 480 · Specifications (480); only the objects and conditions stated in this passage Cruise speed: 131 mph (211 km/h, 114 kn)[source]Enstrom 480 · Specifications (480); only the objects and conditions stated in this passage Range: 435 mi (700 km, 378 nmi)[source]Enstrom 480 · Specifications (480); only the objects and conditions stated in this passage Service ceiling: 13,000 ft (3,962 m)[source]Enstrom 480 · Specifications (480); only the objects and conditions stated in this passage Rate of climb: 1,500 ft/min (7.62 m/s)[source]Enstrom 480 · Specifications (480); only the objects and conditions stated in this passage |
|---|
| Country of origin | — | Vereinigte Staaten[source]Country of design · Entwurfsland |
|---|
2,850 lb (1,293 kg)[source]