EC145 Limitations

MAUW

D2 - 3700

D3 - 3800

Max floor loading

60-kg/m2

Max old -er tie down 70kg

Max alt

20000kg

Max Alt DA/PA (Hover IGE0)

16000ft

Rotor start/stop

50kts (all directions)

Hover wind limits

Max relative wind 30kts (any direction except head wind +- 30° )

Rotor brake engaged

<50% NR max

OAT

-30°C to ISA +35°C (max 50°C)

VNE AEO

150kts (>3000kg 143kts)

VNE OEI

110kts

VNE Power off

90kts

Autorotation Normal speed

70kts

Autorotation range speed

90kts

Autorotation min ROD

60kts

TR Failure speed

>70kts

Vy

70kts

Vtoss

45kts

Sloping ground limits

Nose up: 8° (+11.5 on AI)

Nose down: 10° (-6.5° on AI)

Left skid up: 8°

Right skid up: 12°

MMI Fail = max 3° (Norma; attitude is 3.5° nose up

MMI Normal

0 - 54%

MMI Caution

54% - 66% (yellow)

MMI Max

>66% (red)

MMI End of scale

100% (white line)

Speed after which MMI not displayed (unless limit exceeded)

55kts

Float gear limits

Max 5000ft

80kts

Min speed IAS engaged

30kts

Min rec IAS with VS FPA TRK mode engaged

30kts

Min rec IAS for GA engagement

30kts

Min rec IAS for activation of recovery function

40kts

Min height hands and feet off controls

Take off & approach: 200ft

All other flight phases: 500ft

Min LOC intercept distance

4nm

Max LOC incept angle

90°

Min IFR IAS UPMs engaged

4 axis: 30kts

No 4th axis: 60kts

Max descent angle

9°

Max Glide slope angle

6.7°

Max rec IAS

120kts

Max rec sust ROD

1500ft/min

AEO Trans limits

N1 - 101.7% (max 20secs)

TQ - 104.5% (Vy +5)

TOT - 945° C (max 20secs)

AEO Take Off limits

N1 - 100.6%

TQ - 95%

TOT - 918° C

Cont Limits

N1 - 98.5%

TQ - 74%

TOT - 901° C

OEI HI - 30 SEC limits

N1 - 105.7%

TQ - 150%

TOT - 1006° C

OEI LO (2 mins) limits

N1 - 104.3%

TQ - 142.8%

TOT - 987° C

OEI CONT limits

N1 - 101.7%

TQ - 100%

TOT - 945° C

Clear Area Departure limits

TDP - 30kts / 15ft

VTOSS - 45kts

Vy - 70kts

15m x 300m. Safety area 4nm either side

Clear Area Arrival limits

LDP - 40kts / 100ft

ROD - <500ft/min

VTOL Departure - Helipad

TDP - 130ft (up to 210ft for obstacles)

VTOSS - 45kts

Vy - 70kts

Min size FATO - 15M X 15M OR 15M diameter, safety area 28m diameter

Surface level & elevated, day & night.

VTOL 1 arrival - helipad

LDP - 20kts / 130ft

ROD - <= 300ft/min

NR MIN transient

85%

Low NR transient (20 sec max)

85% - NRmin

(NR min 3% below the nominal rotor speed or 94%, whichever is higher)

High NR transient (12 sec max)

109% - 113%

NR Power off min continuous

85% (GM > 2200kg)

80% (GM < 2200kg)

NR Power off transient (12 sec max)

109% - 113%

NR Power off max transient

113%

ROTOR RPM caption triggered at

<NRmin (steady) or >109% (flashing)

NR Audio warn

NRmin - slow beep

>109% - fast beep

>113% - fast beep (not mutable)

FLI AEO - red teardrop

Transient limit (unintended 12 secs max)

FLI AEO - Red line

Take off power limit (limit gong)

FLI AEO - Amber rectangle

Take off power rating (limited to 30mins, disappears between Vy+5 & Vy+20)

AEO FLI - below amber rectangle

Continuous operation

AEO FLI - blue line

OEI power limit (max power available OEI 30secs)

FLI AEO - White dashed line

Desynchronisation line

FLI OEI - Upper red line

OEI 30secs limit

FLI OEI - Lower (smaller) red line

2 min power limit

FLI OEI - Topping signal - red triangle

Indicates active topping limit

FLI OEI - Amber hatched rectangle

(Only appears if power is above OEI continuous limit)

Sits between max continuous power & 2min power rating

FLI OEI - Amber line

OEI Continuous limit

MRGB Oil temp

Min for power: -10°C (lower Amber limit)

Continuous: -10°C to 105°C

Max: 105°C (upper red limit)

MRGB Pressure limits

Min 0.7 to 1bar (Lower red limit, automatically calculated depending on NR)

Continuous 1.3 to 5bar

Caution 1 to 1.3bar (lower amber limit, automatically calculated depending on NR)

Max 5bar (upper red limit)

Engine Oil Temp

Minimum for power - 0° C (lower Amber limit)

Max 117° C

Engine Oil Pressure

Min red limit - 1.5 to 3.3bar

Min Amber limit - 2.25 to 4.2bar

Max 12 to 15bar

(Limits are automatically set by FADEC & displayed)

Max Cont N2

108.3%

Min Cont N2

94%

TOT Start limits

Max transient - 840° C (max 12secs)

Max continuous - 760° C

TOT AEO limits

Takeoff (30 min) - 918° C

MAX continuous - 901° C

MAX transient - 945° C (20 secs max)

TOT OEI Limits

30 second limit - 1006° C

2min limit - 987° C

Max continuous - 945° C

Ignition

2x igniters, activated by start electro valve, deactivated at 61% N1 by FADEC.

Fire bottles

2x HALON 1301 (extinguishant) / nitrogen (propellant)

Fire detectors

1x eng accessory gearbox @ 210° C, 2x rear firewall @ 315° C

Fuel tank capacity

Total - 734kg (918L) Useable - 726kg (907L)

Main cell - 628kg (785L) Useable - 625kg (782L)

LH tank - 47kg (59L) RH tank - 53kg (67L)

Main Fuel Low caption

One transfer pump exposed (fuel in main tank <50kg)

OR

main fuel tank quantity <40kg

Fuel Pressure Caption

Both transfer pumps exposed

OR

left supply <42kg / right supply <47kg

Fuel # Low & Low Fuel # Caption

Supply tank quantity <26kgs (8-10 mins).

Anti Ice Additive

Not required until fuel temp of -20° C

fuel temp after oil heat exchanger must be >3° C before applying power

Fuel burn

AEO cruise @ 120kts - 240kg/hr (4kg / min) (generic - high OAT)

Emergency Battery

24V, 4.5Ah max 20amps

Provides 30min to Emergency Battery Bus in event of essential bus 2 loss (IESI and emergency lights)