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EC155 Limitations
Limitations & Dimensions for DC EC155B1
39
Aviation
Professional
10/23/2012

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Term
Fuselage length, width, height
Definition
Length: 12,71 m Width: 1,90 m Height : 4,35 m
Term
Main rotor
Definition
5 blades - diameter : 12,60 m
Term
Tail rotor
Definition
Fenestron w. 10 blades - diameter : 1,1 m
Term
Engines
Definition
2 turbine engine ARRIEL 2C2 manufactured by Turbomeca 852-1045 shp
Term
Fuel type
Definition
JET A1 ( SG 0,79 )
Term
Fuel capacity - total
Definition
1280 litres ( 1011,4 kg ) - usable : 1256,50 litres ( 992,8 kg )
Term
Minimum crew
Definition
1 pilot in right-hand seat
Term
Maximum passengers
Definition
12/13 ( utility ) ( DC 10 seats )
Term
Start-up limits
Battery voltage
Definition
>23V before start - >17V during start
Term
Abort start if:
Definition
-No ignition after 30s.
-TOT underscored ( max 750°C / 840°C Auto shut off )
-ENG# light still on @ N1=70%
-Rotor not running @ N1=25%
-FADEC FAIL on CAD
-Free turbine pointer moves beyond rotor pointer
Term
Starter-generator limitation
Definition
Max 5 starts or crankings, then wait 20 min.
Term
VNE power on
Definition
175 kt ( -1500' - 2000' )
175 kt ( -1,5 kt per 1000' @ 2000' - 4000' )
172 kt ( -3 kt per 1000' @ >4000' )
Term
VNE power off
Definition
135 kt ( Alt. changes = VNE power on -40 kt )
Term
Vy
Definition
80 kt ( -1kt pr. 1000’ )
Term
Door open (CAD) in flight
Definition
Airspeed ≤ 110 kt (Refer to FLM for approved airspeed with doors open or removed)
Term
Max wheel braking speed
Definition
35 kt
Term
Max taxi speed ≤ 4920 kg / 4920 - 4950 kg
Definition
35 kt / 30 kt
Term
Max running landing speed
Definition
35 kt ( Unless emergency or training )
Term
Rotor limits
Normal range power on
Definition
342 - 350 rpm
Term
Rotor limits
Maximum power off
Definition
375 rpm ( 10 Hz horn : ≥375 rpm )
Term
Rotor limits
Minimum stabilized
Definition
316 rpm ( 3 Hz horn : ≤330 rpm )
Term
Rotor limits
Loadfactor
Definition
Do not stabilize turns beyond 45° bank.
Avoid abrupt pull outs >4400kg / OAT <-15°C
Term
Rotor limits
Max wind, starting
Definition
35 kt from any direction / 55 kt 30° off nose direction with High Wind kit
Term
Weight limits
Minimum Gross
Definition
3000 kg ( ≥ -5°C )
3200 kg ( -5°C - -25°C )
3400 kg ( -25°C - -40°C )
Term
Weight limits
Maximum Gross
Definition
4920 kg
Term
Weight limits
Maximum Taxi
Definition
4950 kg
Term
CG datum
Definition
Long.: 4 m. forward of rotor centerline
Lat.: A/C symmetry plane
Term
Slope landing & T/O limits
Side & tail up
Definition
Term
Slope landing & T/O limits
Nose up (±45°)
Definition
12°
Term
Operational limits
Day & Night
Definition
IFR + VFR
Term
Operational limits
Use of RPM HIGH only
Definition
CAT A helipad ( or increased slope ops for V1 < Vy )
Term
Operational limits
Maximum Glide slope
Definition
6,5°
Term
Operational limits
Max operating pressure altitude
Definition
15 000 ft depending on temperature (norm -15°C) ( FLM 2.3/s3 )
Term
Flight in icing conditions
Definition
Prohibited
Term
Intentional fulldown autos
Definition
Prohibited
Term
Intentional single engine flight
Definition
Prohibited
Term
Engine in backup mode
Definition
Prohibited
Term
CHRT in IMC or over ground
Definition
Prohibited
Term
Aerobatic maneuvers
Definition
Prohibited
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