The Eurocopter AS355 F1 Twinstar

The Eurocopter AS355 F1 TwinStar

General Description
The AS355 F1's speed and range combined with a roomy, quiet cabin make it suitable for a variety of missions from EMT to executive transport.
The Starflex rotor head and modular design provide long service life as well as simplified maintenance procedures when they finally are required.
Safety is enhanced by the AS355 F1's ability to operate on only one of it's two engines, a real comfort on over-water flights.
Cabin Configuration

Passenger transport 1 pilot + 5 passengers (standard)
1 pilot + 6 passengers (maximum)

Casualty Evacuation 1 pilot + 1 or 2 stretcher patients + 2 medical attendants

Cargo Carrying 1 pilot + 106 cu. ft. available for load in the cabin

Interior Noise Levels

In hover 73.5 dB

In forward flight at 110 kts 77.5 dB

Specifications
The following performance figures are based on the mean values obtained with a new engine. Unless otherwise stated, they are given for clean aircraft, in zero wind at sea level and with standard atmospheric conditions. Use for reference only, not for actual flight calculations.

Specification Unit Ac/Wt Ac/Wt Ac/Wt MGW

Weight (standard aircraft 2,900 lbs.) lb 4,190 4,630 5,070 5,290

VNE kts 150 150 150 150

Cruising speed kts 133 130 126 124

Fuel consumption at cruising speed lb/hr 403 403 403 403

Rate of climb, oblique flight ft/min 2,027 1,830 1,594 1,496

Range nm 420 410 400 391

Hovering ceiling I.G.E.
ISA ft 15,100 12,140 9,350 7,880

Hovering ceiling I.G.E.
ISA + 20 degrees ft 12,950 9,680 6,730 5,250

Hovering ceiling O.G.E.
ISA ft 13,780 10,700 7,880 6,400

Hovering ceiling O.G.E.
ISA + 20 degrees ft 8,370 5,250 3,780 11,650

Service Ceiling ft 16,000 16,000 14,450 13,120

Dimensions of the AS355