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FROM YOUR BELL HELICOPTER TEXTRON REPRESENTATIVE.
PRODUCT DATA
JANUARY 2003
GLOSSARY
INTERNATIONALLY APPROVED ABBREVIATIONS
Atmosphere
Rate of Climb
Speed and Distance
Weights
Performance
Definitions
C
ISA
ISA+20 C
ISA+30 C
SL
R/C
ft/min
m/s
h
km
km/h
M
mph
n m
sm
kg
l b
IGE
OGE
max
Maximum Endurance
Speed
Long Range Cruise
Speed
Pressure Altitude
Service Ceiling
Degrees Celsius (° is not required if meaning is clear.)
International standard atmosphere. (Standard temperature is defined
as 15°C at sea level, with a lapse rate of -1 °C for each 150 meters (500
feet) increase in pressure altitude.)
International standard temperatures increased at each altitude by a
constant 20 C or 30 C.
Sea level.
Rate of climb.
Feet per minute.
Meters per second. (One meter per second is 3.28 ft/s )
Hour/hours.
Kilometer/kilometers.
Kilometers per hour. (One kilometer per hour equals 0.54
knots or 0.62 statute miles per hour.)
Knots. (Nautical miles per hour.)
Meter/meters. (One meter equals 3.28 feet.)
Statute miles per hour. (One mile per hour equals 0.87
knots. )
Nautical miles.
Statute miles.
Kilogram/kilograms.
Pound/pounds. (One pound equals 0.45 kilograms.)
In ground effect. (Hovering near the ground creates a
cushion of air that increases the weight carrying capability
of the helicopter (the ground effect). This effect generally
is present up to one rotor diameter above the ground.)
Out of ground effect. (Since the ground effect extends up to
one rotor diameter out of ground effect refers to flight that is
higher than this height above the ground.)
Maximum.
The speed at which power required to fly is a minimum.
The higher of the two speeds at which 99% of maximum
range occurs. Cruising at this speed is a tradeoff of one
percent in maximum range for 20 to 30 kilometers per hour
(10 to 15 knots), higher speed.
The altitude indicated on an altimeter or barometer when
the sea level standard pressure reading is the reference
(1013 millibars (29.92 inches) of mercury).
The altitude at which the maximum rate of climb capability
is 0.5 meters per second, 100 feet per minute.
Содержание BELL 430
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