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1

 

 

general Airspeed (VNE) Limitations

  • VNE Power-On:            155 Kts
  • VNE Power-Off:            125 Kts
  • VNE with Sling Load:       80 Kts

 

Altitude Reduction:

  • Reduce VNE 3 Kts / 1000’ Pressure Altitude

 

Cold Weather Reduction:

  • Reduce VNE Power-On 10 Kts @ OAT < -30oC
  • Reduce VNE Power-Off 20 Kts @ OAT < -20oC

2

 

 

 

Airspeed (VNE) –

Sliding DOORs operation

VNE Doors Opening/Closing:        60 Kts

  • VNE R.H. closed, L.H. open:  60 Kts
  • VNE L.H. closed, R.H. open:  110 Kts* 
  • VNE both doors open:          110 Kts*

* Or VNE doors closed whichever is lowest

3

 

 

AUTOPILOT LIMITATIONS

Minimum Speeds for Autopilot Activation:

  • HDG Hold:                  50 Kts
  • A/S Hold:                     50 Kts
  • T/C:                             50 Kts
  • ALT Hold:                   60 Kts & < 1000 FPM

 

Min. GWT for Autopilot Operation:        ≥ 1.300 Kg

 

4

 

 

 

Max. Weights -

AIRFRAME & Cargo

Max. Airframe Weights:

  • Max. GWT:                                       2250 Kg
  • Max. GWT w/ Jett. Ext. Weapons:     2350 Kg
  • Max. GWT w/ Sling Cargo:                2500 Kg

 

Max. Internal Cargo Weights:

  • Rear Cabin Floor:                              310 Kg
  • Forward L.H. Cabin Floor:                150 Kg
  • L.H. Hold:                                         120 Kg
  • R.H. Hold:                                         100 Kg
  • Rear Hold:                                           80 Kg

5

 

 

 

CG Limitations -

Longitudinal & Lateral

Longitudinal Limits:

  • 2250 Kg:                     3,210 m – 3,425 m
  • 2000 Kg:                     3,170 m – 3,455 m
  • 1750 Kg:                     3,170 m – 3,490 m
  • 1200 Kg:                     3,170 m – 3,500 m

 

Lateral Limits:

  • L.H.:                            0,18 m
  • R.H.:                            0,14 m (Translating Tendency)

6

 

 

Wind Limitations

Limits for Starting & Shutdown:

  • Max. All Directions:                            40 Kts
  • Max. Headwind:                                50 Kts

 

Limits for Landing on Transport Cart:

  • Max. Steady Wind (Average):            25 Kts
  • Max. Gust Spread:                             10 Kts

7

 

 

 

Temperature Limitations –

Hot / Cold environment

Maximum Temperature:

  • Max. Hot Climate:                              ISA + 35oC
  • Never Exceed Limit:                           500C

 

Minimum Temperature:

  • Min. Cold Climate:                             - 40oC
  • May be limited to - 25oC if certain Spherical Thrust Bearings are installed                                   

8

 

 

Start-Up limitation ranges

  • T4:                                450-550oC (Approx.)
  • ∆Ng:                             < -10
  • Ng:                               82-85%
  • Torque:                        20-30%
  • NR:                              380±5 RPM
  • Voltage:                       27,5V
  • ENG Oil Pressure:        > 1,3 Bar
  • ENG Oil Temp.:           < 85oC

 

9

 

 

Flight in Falling snow limitations

Flight in Falling Snow:

  • Vis. > 1500m:                                    No Restrictions
  • Vis. ≥ 800m & ≤ 1500m:                   10 Min incl. time

to leave conditions

  • Vis. < 800m:                                      Flight Prohibited

 

NOTE: If Snow Filter is installed these limits are not valid.

10

 

 

main rotor (nR) limitations

Power-On Limitations:

  • Avoid Range (GND Resonance):        300-320 RPM
  • On GND @ Low Pitch:                     380 ± 5 RPM
  • In Stabilized flight:                              390 + 4 / - 5 RPM

Power-Off Limitations:

  • Min.:                                                  320 RPM
  • Max.:                                                 430 RPM

Rotor Brake Limitations:

  • Routine / shutdown:                            100 RPM
  • Gusty Conditions:                               140 RPM
  • Max.:                                                 170 RPM
  • Min. 5 min. between two consecutive Brakings.

11

 

 

torque limitations

Airspeed < 40 Kts:

  • Max. Transient (≤ 10 Sec.):                107 %
  • Max. Continuous:                               100 %

 

Airspeed ≥ 40 Kts:

  • Max. Continuous:                                 94 %

 

 LIMITl Warning Light illuminates @ ≥ 100 %

12

 

 

Gas generator (ng) limitations

  • Max. Transient (≤ 5 Sec.):                  107,5 %, ∆Ng: +6
  • Max. Takeoff Rating (≤ 5 min.):         

- Without P2 Bleed:                            ∆Ng: 0

- With P2 Bleed:                                 ∆Ng: -0,6

  • Max. Continuous Rating:                    98 %,     ∆Ng: -3,5

 

 LIMITl Warning Light illuminates @ ∆Ng ≥ 0

 

NOTE: with Sand Filter installed, and ON, subtract 1 from ΔNg limits at temperatures above +35º C, and subtract 0,5 above +5º and below +35º C

13

 

 

T4 Temperature limitations

  • Max. for Engine starting:                          795º C
  • Max. Transient @ starting (≤ 5 sec.):    865º C
  • Max. on Takeoff:                                    845º C
  • Max. Continuous:                                    795º C

 

14

 

 

Free turbine speed (Nf) limitations

  • Max. Continuous equivalent:               417 RPM
  • Max. Transient (≤ 5 sec.):                  463 RPM
  • Min. Transient (≤ 5 sec.):                   330 RPM

 

15

 

 

fuel limitations

Emergency Fuels, Gasoline:

  • Maximum 25 hours in one overhaul period
  • Add 2% of mineral lubricating oil if possible
  • Up to 1500 ft PA
  • Fuel temperature up to +30º C (OAT)

Fuel pressure:

  • Pressure in the event of filter clogging under 0,4 bar (5,8 PSI)
  • Pre-clogging caution light (FUEL F) set for 0,2 bar differential (200 mb, 2,9 PSID)

Fuel Flow with Heating / Demisting on:

  • Add 4 % for increased Fuel Burn.

Anti-ice additive:

  • Compulsory if OAT below 0º C
  • Max concentration between 0,10 and 0,15 Vol. %

NOTE: Not applicable if helicopter is equipped with Anti-Ice Fuel Filter

 

 FUELl Light activates @ appr. 60 L (11,1 %, 18 minutes) remaining.

16

 

 

 

MGB oil temperature &

oil pressure limitations

 MGB Pl and iMGB Ti Warning Lights must remain Off in Flight

17

 

 

engine oil pressure limitations

  • Max. outside Starting sequence:          5 bar (72,5 PSI)
  • Min. above 85 % Ng:                         1,8 bar (26 PSI)
  • Min. between 70 and 85 % Ng:          1,3 bar (18,9 PSI)

 

18

 

 

engine oil temperature limitations

  • Maximum:                                          115º C
  • Min. before Power Application:              0º C

 

19

 

 

Hydraulic System limitations

iHYDi Warning Light must remain Off in Flight

20

 

 

electric system limitations

  • Rated voltage:                                    26-29 V
  • Maximum voltage:                              31,5 V
  • Maximum current:                              150 A

21

 

 

slope limitations

  • Nose-up :                     10º
  • Nose-down:                   6º
  • Sideways:                       8º
  • Night:                             3º

22

 

 

Flight restrictions

  • Flying in Icing conditions
  • Aerobatics
  • Engine Power reduction in Flight using Fuel Flow Control except for Autorotational Training