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TH-57 EP/LIM > Limits > Flashcards

Limits Flashcards

1
Q

Minimum crew

A

One pilot and a qualified observer

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2
Q

Weight

A

Internally - 3,200lbs

Including external cargo - 3,350lbs

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3
Q

Min crew for CAL

A

Two NATOPS qualified pilots or

One NATOPS qualified pilots, a qualified observer and an aircrewman

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4
Q

Ng

A

Idle - 62+/- 2%
Continuous - 60-105%
Maximum - 106% for 15 seconds

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5
Q

Max Auto

A

100KIAS

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6
Q

Standby Generator

A

*With the main gen on, the stby loadmeter should indicate 10% or less. Momentary testing of the stby gen under full bus lad is permitted on the ground or in air.

Prolonged operation of the stby gen while it is the primary power source to ESS#1 Bus is prohibited at speeds less than 65KTS

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7
Q

XMSN Oil Temp

A

15-110 C
* Illumination of the TRANS OIL PRESS caution is common while twist grip is at flight idle, however, the gauge should indicate positive transmission oil pressure.

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8
Q

Min IFR

A

65KIAS

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9
Q

Climb/Decent IMC

A

During IMC Should not exceed 1,000fpm

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10
Q

Max w/o doors

A

110KIAS

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11
Q

Nr

A 
Power on:
Min - 97%
Max cont. - 100%
Power Off:
Cont. - 90-107%

Continuous operations in 50-60% range may cause isolation mount damage

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12
Q

Cargo

A

86lbs per square foot (in cabin and baggage compartment)

Max load - 950lbs

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13
Q

XMSN Oil PX

A

Min - 30psi
Cont.- 30-50psi
Max - 70psi
* PX between 50-70 shall be documented on a MAF at the completion of the flight. No detrimental effect in this region with XMSN oil temp within limits.

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14
Q

Sideward/Rearward Flight

A

DA Side Rear
0-1000 25 15
1000-2000 20 15
2000-4000 15 15
4000-6000 10 10
6000-10,000 5 5

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15
Q

Longitudinal CG Limits FCS ON

A

106.75-112.5

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16
Q

Rotor Brake

A

Continuous - 38-30%Nr

C - Application less than 30%Nr may cause damage to the drive train

17
Q

Baggage compartment

A

250lbs

18
Q

Rotor engagement and disengagement

A

Front - 40kts
Side - 25kts
Rear - 17kts

19
Q

Longitudinal CG with front doors removed

A

106-110

20
Q

TOT

A 
Start:
Continuous - 0-810 C
10 Sec -          810-927 C
Max -               927 C
Power Transient:
Continuous - 0-738
5 min -             738-810
6 sec -             810-843
Max -               843
21
Q

Prohibited Operations

A

(B) Prohibited from IMC or Icing conditions
(C)Prohibited from Icing conditions
IFR is prohibited with any doors removed or external loads
Asymmetrical doors off, flight prohibited

22
Q

Min crew for IFR

A

Two pilots; one with an instrument rating

23
Q

Turbulence

A

80KIAS

24
Q

Starter

A 
*If a light off occurs within 20 sec of the start sequence, the starter may be operated for 60sec with a 60sec cooling period. 3 such attempts may be made within 30min, then wait 30min to cool.
With External Power:
25sec-on
30sec-off
25sec-on
30sec-off
25sec-on
30min-off
Battery:
40sec-on
60sec-off
40sec-on
60sec-off
40sec-on
30min-off
25
Q

Min crew weight

A

180lbs

26
Q

Lateral slope

A

7.5 degrees

27
Q

Overwater and shipboard requirements

A
  1. RADALT
  2. VSI
    * Liferafts are not required
28
Q

Longitudinal CG Limits FCS OFF

A

106-114.2

29
Q

Nf

A

Min - 97%
Max continuous - 100%
Avoid - 71-88% when Torque >33%
Steady state is defined as holding Nf within 2% range. Holding Nf in this range for 60sec requires turbine replacement and shall be avoided.

Overspeeds are determined on a sliding scale

30
Q

Prohibited maneuvers

A

Aerobatic maneuvers
Protracted operations in the Avoid or Caution areas on HVD
Fully developed VRS
Intentional entry into blade stall
Hovering turns in excess of 45 degrees per second

31
Q

Acceleration

A

.5-2.5 G’s

32
Q

Night Flight

A
  1. All inst and CB lights (except single failure of a redundant system)
  2. All exterior lights
  3. Operable comm radio
  4. Attitude Gyro
  5. RADALT
33
Q

Fuel Reserve

A

10gal

34
Q

Torque

A

Cont. - 0-85%
Max - 100% for 5 min (military power limit)
Transient - 100-110% for 5 sec

35
Q

Notes

A

Intentional operation in the transient range is prohibited.

36
Q

Max Rate or Climb

A

50KIAS

37
Q

Fuel Boost Pump Pressure

A

4-30psi

38
Q

Engine Oil PX

A 
Min - 
             50psi w/ Ng <79%
             90psi w/ Ng 79>x<94%
             115psi w/ Ng >94%
Max - 130psi 
*Max is 130 psi, except for temporary conditions up to 150psi immediately following cold Wx start
39
Q

Vine

A

FCS Off - 130KIAS

FCS On - 122KIAS

TH-57 EP/LIM (2 decks)

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