Wdla2021-2022-Chinese reduced free Version

UNITS & ABBREVIATIONS
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除 以 下 内 容 外 本 刊 内 容 全 部 为 公 制 单 位 , 所 有 单 位 转 换 精 确 到 三 位 数
This publication uses metric units throughout, with following abbreviations Imperial Conversion Imperial > Metric
A Current Amperes (A) (same unit) - -
AHRS Attitude & Heading Reference Systems - - - -
AIP Aeronautical Information Package - - - -
AR Aspect ratio - - - -
ASI Airspeed Indicator - - - -
Assembled Price ready-to-fly Euro (E), US Dollar ($) or Pound Sterling (£) c heck current exchange rates
as indicated, excluding local and national taxes
BA Number of propellers - - - -
C Continuous combustion - - - -
Cert Certification s t andard achieved through recognized certification regimes, eg BCAR S, SLSA, VZ
CR Chord of rotor metre (m) foot (ft) 1m = 3.28ft 1ft = 0.305m
D Diesel fuel - - - -
Displacement Displacement cubic centimetre (cm 3 ) cubic inch (in 3 ) 1cm 3 = 0.0610 in 3 1 in 3 = 16.4cm 3
DP Diameter of propeller - - - -
DR Diameter of rotor metre (m) foot (ft) 1m = 3.28ft 1ft = 0.305m
E Radial configuration - - - -
EFIS Electronic Flight Information System - - - -
EIS Engine Information System - - - -
EMS Engine Monitoring System - - - -
Endurance Max Endurance hour (h)
Eng Engine name - - - -
EW Empty weight kilogram (kg) pound (lb) 1kg = 2.20 lb 1 lb = 0.454kg
ES Energie storage litres or Kwh - - -
FAI-ML FAI Microlight Class - - - -
FC Fuel consumption litres per hour (l/h) gallons per hour or US gallons 1 l/h = 0.264gal/h (US) 1gal/h(US) = 3.79 l/h
per hour (gal/h or US gal/h) or 0.220gal/h 1gal/ = 4.55 l/h
FMS Flight Management System - - - -
G Gasoline - - - -
GA General aviation - - - -
GPS Global Positioning System - - - -
GR Glide ratio - - - -
GY Gyrocopter - - - -
hp Horsepower metric horsepower (hp) (same unit)* - -
IFIS Integrated Flight Information System - - - -
J Jet - - - -
Kit Price of kit Euro (E), US Dollar ($) or Pound Sterling (£) c heck current exchange rates
as indicated, excluding local and national taxes
KT Torque constant Newton metres per ampere (Nm/A) (same unit) - -
KV Speed constant revolutions per min per Volt
(rev/min/V) (same unit) - -
kW Power (electrical) kilowatts (kW) (same unit) - -
L In-line configuration - - - -
LCD Liquid Crystal Display - - - -
LED Light Emitting Diode - - - -
LSA Light Sport Aircraft - - - -
l x w x d Length x width x depth millimetre (mm) inch (in) 1mm = 0.0394 in 1 in = 25.4mm
l x w x h Length x width x height millimetre (mm) inch (in) 1mm = 0.0394 in 1 in = 25.4mm
ML Microlight - - - -
MTOW Maximum take-off weight kilogram (kg) pound (lb) 1kg = 2.20 lb 1 lb = 0.454kg
NB Number of propeller blades - - - -
NR Number rotorblades - - - -
O Opposed-piston configuration - - - -
P Flat configuration - - - -
PA
Number of propellers
PD Propeller diameter centimetre (cm) inch (in) 1cm = 0.394 in 1 in = 2.54cm
PFD Primary Flight Display - - - -
Plans Price of plans Euro (E), US Dollar ($) or Pound Sterling (£) c heck current exchange rates
as indicated, excluding local and national taxes
Power Power (mechanical) metric horsepower at a given (same unit)* - -
engine speed (hp@rev/min)
Power Power (electrical) kilowatts (kW) (same unit) - -
Power Power hp or kW
Kit Price Euro (E), US Dollar ($) or Pound Sterling (£) c heck current exchange rates
as indicated, excluding local and national taxes
PW Pilot weight kilogram (kg) pound (lb) 1kg = 2.20 lb 1 lb = 0.454kg
R Rotary configuration - - - -
Red Reduction ratio - - - -
Rm Internal resistance milliohms (mΩ) (same unit) - -
rpm Engine speed revolutions per minute (rev/min) (same unit) - -
S Supercharged - - - -
SFC Specific fuel consumption grams per metric horsepower pounds per imperial horsepower 1g/hp/h = 0.00220 lb/hp/h 1 lb/hp/h = 447g/hp/h
per hour (g/hp/h)
per hour (lb/hp/h*)
SP Sailplane - - - -
Speed Speed kilometres per hour (km/h) miles per hour (mph) 1km/h = 0.622mph 1mph = 1.61km/h
St Number of seats - - - -
T Turbocharged - - - -
TC Tank capacity litres (litre) US gallons or gallons 1 litre = 0.264gal(US) or 0.220gal 1gal(US) = 3.79 litre,
(gal(US) or gal)
1 gal = 4.55 litre
TIS Traffic Information Service - - - -
Torque Torque Newton metres at a given engine pounds force foot at a given engine 1Nm = 0.738 lbf.ft 1 lbf.ft = 1.36Nm
speed (Nm@rev/min)
speed (lbf.ft@rev/min)
US-LSA US Light Sport Aircraft Class - - - -
US-UL US Ultralight Class - - - -
V (mechanical) Vee configuration - - - -
V (electrical) Voltage volts (V) (same unit) - -
Vc Cruise speed kilometres per hour (km/h) miles per hour (mph) 1km/h = 0.622mph 1mph = 1.61km/h
Vmax Maximum speed kilometres per hour (km/h) miles per hour (mph) 1km/h = 0.622mph 1mph = 1.61km/h
Vs0 Stall speed (with full flaps where fitted) kilometres per hour (km/h) miles per hour (mph) 1km/h = 0.622mph 1mph = 1.61km/h
Vne Never exceed speed kilometres per hour (km/h) miles per hour (mph) 1km/h = 0.622mph 1mph = 1.61km/h
Vz / Vz max Climb rate metres per second (m/s) feet per minute (ft/min) 1m/s = 197ft/min 1ft/min = 0.00508m/s
Vz min Minimum sink rate metres per second at a given feet per minute at a given 1m/s = 197ft/min 1ft/min = 0.00508m/s
speed (m/s@km/h)
speed (ft/min@mph)
WA Wing area square metre (m²) square foot (ft²) 1m² = 10.8ft² 1ft² = 0.0929m²
WS Wing span metre (m) foot (ft) 1m = 3.28ft 1ft = 0.305m
- Information not available - - - -
* to be strictly correct, 1 metric horsepower = 0.986 imperial horsepower, but for practical purposes they can be regarded as equal, so we use the same abbreviation for both
2020-2021
2021-2022 < World Directory of Light Aviation 自 由 之 翼 267
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