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FMS-D212-725-1
Page 4-4
• COPYRIGHT © 2007 BY DART AEROSPACE LTD •
This document is private and confidential and is supplied on the express condition that it is not to be used for any
purpose or copied or communicated to any other person without written permission from Dart Aerospace Ltd.
Revision:
G
TC Approved Date: 13.08.09
4.2 Maximum Power (Torquemeter Pressure)
Check
The purpose of this check is to determine whether or not the installed engine
will deliver torquemeter pressure (power) equal to or greater than a minimum
specification engine. Since the minimum specification engine is capable of
delivering 1500 horsepower, and the engine as installed in the helicopter is
de-rated to 1290 horsepower, care must be taken not to exceed the power
limitation (55.7 PSI (100%) torquemeter pressure). This “full throttle” power
check, in order to be conclusive, must be made at conditions of altitude and
temperature at which full throttle will produce no more than 55.7 PSI (100%)
torquemeter pressure. This check should be accomplished in the following
manner:
De-ice OFF, Cabin heat OFF
Initiate a climb at best climb speed and 100 percent N
2
Maintain climb and increase collective (not to exceed 55.7 PSI (100%) of
torque) until the N
2
speed drops to 98 percent with the governor RPM switch
“Beeped” to full increase.
Read and record the following
Example
Pressure altitude 6000 ft
Ambient air temperature 30°C
Torquemeter pressure 53.2 PSI (95.5%)
Gas producer speed (N
1
) 96.6%
Enter chart (Figure 4-1) at pressure altitude (Point A), proceed horizontally to
ambient air temperature (Point B), and then proceed vertically down and read
chart torquemeter pressure (Point C). Example: 52.0 PSI (93.4%)
Since the observed maximum torquemeter pressure of the example (53.2
- Shepherd 1
- Page Intro-3 3
- Revisions 4
- Unapproved Date: 07.11.30 5
- General Information 5
- Terminology 6
- Section 1 10
- 1.4 Flight Crew 14
- 1.5 Configuration 14
- 1.5.3 Doors Open/Removed 15
- 1.5.4 Passengers 15
- TC Approved Date: 10.05.12 16
- 1.5.5 Cargo 18
- 1.5.5.2 Cargo Compartment 18
- 1.6.1 Weight 19
- 1.6.2 Center of Gravity 20
- 1.7 Airspeed 21
- 10.05.12 22
- 1.8 Altitude 23
- 1.9 Maneuvering 23
- TC Approved Date: 08.06.12 25
- 1.11 Ambient Temperature 26
- 1.12 Electrical 27
- 1.13 Power Plant 28
- 1.13.2 Power Turbine (N 29
- Limitations (T5317A Only) 29
- 1.13.6 Fuel Pressure 30
- 1.14 Transmission 31
- 1.15 Rotor 32
- 1.16 Hydraulic 32
- 1.17 Fuel and Oil 33
- 1.18 Rotor Brake 34
- 1.19 Heater 34
- 1.20 Additional Placards 35
- 1.21 Instrument Markings 36
- Section 2 45
- 2.3 Preflight Check 48
- 2.3.1 Before Exterior Check 49
- 2.3.2 Exterior Check 51
- 2.4.1 Pre-start Check 57
- 2.5 Engine Start 63
- 2.6 Systems Check 65
- 2.6.3 Engine Fuel Control 66
- 2.6.4 Rpm Control 67
- 2.6.5 Anti-ice Check 67
- 2.7 Before Takeoff 71
- 2.8 Takeoff 72
- 2.9 In-Flight Operation 73
- 2.10 Descent and Landing 73
- 2.11 After Landing 74
- 2.12 Engine Shutdown 74
- 2.13 Post Flight Check 76
- Section 3 77
- 08.12.17 78
- 3.3 Engine 80
- 3.3.4 Engine Underspeed 84
- 3.3.5 Engine Overspeed 85
- 3.4 Fire 87
- 3.4.2 Cabin Smoke or Fumes 89
- 3.5 Tail Rotor 90
- TC Approved Date: 08.12.17 91
- 3.6 Hydraulic System 96
- 3.7 Electrical System 97
- 3.8 Fuel System 97
- 3.9 Communications System 99
- 3.10 Cabin Heater 99
- 3.10.2 Heater Overheat 100
- Revision: 101
- TC Approved Date: 13.08.09 101
- 13.08.09 102
- TC Approved Date: 09.08.10 103
- IF on ground: ENGINE 105
- Section 4 108
- 08.06.12 109
- FMS-D212-725-1 113
- Page 4-6 113
- 4.3 Power Assurance Checks 114
- Page 4-10 117
- 4.4 Hover Ceiling Charts 118
- 4.5 Takeoff Distance 118
- 4.6 Rate of Climb – Maximum 118
- 4.7 Landing Distance 119
- 4.8 Height Velocity 119
- Hover Ceiling 122
- Takeoff Distance 130
- Rate of Climb – Maximum 142
- Landing Distance 144
- TC Approved Date: 07.06.01 151
- Autorotative Glide Distance 152
- 4,000 feet 153
- Height Velocity Chart 154
- Section 5 155
- 07.06.01 156
- 5.4 Doors Open or Removed 158
- 5.7 Fuel Loading 159
- 5.7.1 Computation of CG 160
- 5.7.2 Sample Loading Problem 160
- Unapproved Date: 07.06.01 161
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