getting to grips with aircraft performance 如何掌握飞机性能 2(43)

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3.2. Less Paper Cockpit (LPC)
This new concept based on onboard computations, using a laptop in the cockpit, represents the ultimate performance computation method. This program, which replaces paper charts, reduces flight preparation time and the risk of error. It suppresses the interpolations and method errors, while providing quick results for real external conditions. As a result, the performance obtained (MTOW or flexible temperature) is the best possible one, thus leading to improved profit.
The computation is based on the same performance software as TLO (i.e. TLC, or OCTOPUS depending on the aircraft type: Figure J20).

4. APPENDIX 4 : ABBREVIATIONS
Greek letters
α
( alpha ) Angle of attack γ
( gamma ) Climb or descent angle δ
( delta ) Pressure ratio = P / P0 .
( DELTA ) Parameters’ variation (ex : .
ISA, .
P) φ
( phi ) Bank angle μ
( mu ) Runway friction coefficient θ
( theta ) Aircraft attitude ρ
( rho ) Air density ρ
0 ( rho zero ) Air density at Mean Sea Level σ
( sigma ) Air density ratio = ρ
 / ρ
0
A
a Sound velocityA0 Sound velocity at sea level AC Advisory Circular (FAA)ACJ Advisory Circular Joint (JAA)ADIRS Air Data / Inertial Reference System AFM Aircraft Flight ManualALD Actual Landing DistanceAMC Acceptable Means of Compliance (JAA)AMJ Advisory Material Joint (JAA)AOM Airline Operation Manual APM Aircraft Performance Monitoring (program)ASD Accelerate-Stop Distance ASDA Accelerate-Stop Distance Available ATC Air Traffic Control
C
CD Drag coefficient CL Lift coefficient CAS Calibrated Air SpeedCDL Configuration Deviation List CG Center of gravityCI Cost Index CL Climb throttle position CWY Clearway
D
DA Drift Angle DGAC Direction Générale de l’Aviation Civile DOC Direct Operating Cost DOW Dry operating weight

E
ECON Economic (minimum cost) speed EGT Exhaust Gas  Temperature EOSID Engine Out Standard Instrument Departure EPR Engine Pressure Ratio ETOPS Extended range with Twin engine aircraft OPerationS
F
f( ) Function of ( )FAA Federal Aviation Administration FAR Federal Aviation Regulation FBW Fly-By-Wire (aircraft) FCOM Flight Crew Operating Manual FF Fuel Flow (hourly consumption) FL Flight Level FLIP Flight Planning (program) FMGS Flight Management and Guidance System
G
g Gravitational acceleration GAL US gallon GD Green Dot speed GS Ground Speed
H
hPa hecto Pascal
I
IA Indicated Altitude IAS Indicated Air Speed ICAO International Civil Aviation Organization IEM Interpretative / Explanatory material (JAA) IFP In Flight Performance (program) IFR Instrument Flight Rules IL Information Leaflet (JAA) IMC Instrument Meteorological Conditions in Hg Inches of mercury ISA International Standard Atmosphere
J
JAA Joint Aviation Authority JAR Joint Airworthiness Requirements
　
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