Limitations Flashcards
Power Plant
Turbomeca Arriel 2D - MTOP 937 shp MCP 856 shp
5 Modules
axial compressor, gas generator, power turbine, reduction g/b, accessory GB/Trans Shaft
Main Rotor Starflex System
clockwise rotation, no lube, 3 glass resin blades, flapping thru star arms, lead lag & pitch thru elastomeric components
Tail Rotor Fenestron
10 blades shrouded, clockwise rotation viewed from LH
Chip detectors
1 eng, 1 trans gb, t/r gb,
Overall Length
41.47’
VEMD Prohibited flight
flt with VEMD completely shut off
Max Internal GW
5512 lbs
Min Internal GW
3307 lbs
Max Rear Cabin Floor
1091 lbs @ 62.5 psf
Max Load Rear Hold
176 lbs @ 30 psf
Max Altitude
23,000 Hp
Min ops temp
-40 °C ISA
Slopes (Landing & m/r stop limits)Nose UpNose DownSideways
6 °6 °8 °
VNE Power On (doors closed)
155 Kts @ 0 Hp - 3 kts/1000’
VNE All Doors Removed (√ config AFM)
100 kts or VNE all doors closed (lowest value)
VNE Doors Removed (√ config AFM) sliding doors
70-110 kts or VNE all doors closed (lowest value)
FLt with doors off/open
secure loose objects &belts/remove seat cushions
0 Fuel/Gross/Long C of G in Reduced VNE
area of Long C of G,
red VNE power on limit effective for entire flight
VNE Power Off Autorotation Max
125 Kts @ 0 Hp -3kt/1000’
Glide Distance in Autorotation
.54 nm/1000 ft @ 65 kts &Nr 410 rpm
Best Rate of Climb Speed (Vy) above 100 ft
70 kts at SL -1 kt/1000’
Fast Cruise Speed
airspeed of first limit (start of FLI amber area)(Tq,N1,TOT)(underlined value)
Best Approach Speed
65 kts -70 kts -1 kt/1000’
M/R Nominal Rotor Speed
386 rpm
T/R Nominal Rotor Speed
3568 rpm
M/R Power On Caution Ranges
320-375 rpm
M/R Power Off - Autorotation Min/Max
320-430 rpm
High Aural Rotor Horn 310 Hz - Intermittent
Nr Above 410 rpm
increase collective to mtn Nr in green
check engine parameters
Rotor Brake Max - high wind rotor speed Rotor Brake
170 rpm with engine shut down
FLI Max Cont Rating
8.2
TQ Max Cont
81.3% Tq
N1 Min Stabilized
67%
TOT Max Cont Start
750 °C
N2 Min
367 rpm
FUEL Capacity
100%/540 L/941 lbs
FUEL Types Normal (-40 to +50 C)
Jet A, A1, JP5, JP8
Hdy System - RH circuit
RH belt driven by engine power drive shaft close to the MGB power input
Engine Oil Max temp
117°C
C of G Longitudinal Datum
133.8” fwd of m/r head centerline
Electrical Voltage Range
26-29 V sys 2
GEN Amp
150 Amp Cont/200 Amp continuous
Take Off Profile
5’ HIGE CofG Check to 10’ @ 40 kts to 20’ @ 50 kts,
then >100’ @ 65 kts
Winds > 30 kts
park into wind/brake on with 1 blade to front, use tiedowns
Noise Level
81.1 dB @ .9 Vh (129 kts TAS)
Sand Filter must be OFF
in visible moisture and temp
Altitudes and Airspeeds
Hp and IAS Land
Flight Forbidden(3) weather related(1) twist grip related(1) vemd related(1) flight related
no start with snow/ice in or around engine air intake
no flight in falling snow without sand filter installed
no flight in freezing rain or icing conditions
no inflight engine power reduction using twist grip except for eng fail trg, emerg procedures requiring it, or maint check procedures
no flight with VEMD shut offno aerobatics
Limitation Exceedance
Each time an operating limitation is exceeded, an appropriate entry shall be made in the logbook (helicopter, engine, etc.). The entry shall state which limit was exceeded, the duration, the extreme valueattained, and any additional information essential in determining the maintenance action required.
Mandatory Audio
2 headsets (1 for pilot & spare to monitor ICS System)
When starting selector switch on check (4)
Ng increasingTOT within limits
Rotor turning by 25%EOP increasing
Autorotation Trg Engine Power Loss Indications
RH yaw, red warnings, gong, Nr decay, HighNR continuous audio
FADEC FAIL Level 1 YELLOW GOV FLASHING
flashing yellow GOV at idle, start/stop seq, no effect on eng control, redunancy loss
Overall Height
11.84’
Main Rotor Diameter (3 Bladed Starflex)
35.07’
Tail Rotor Diameter (10 blade Fenestron)
3.28’
High Skid Width
7.57’
High Skid Length
10.48’
VEMD Red Line
safety limit or takeoff limitation
VEMD Green line
normal ops range