P92 Classic
Deluxe
GE N ERA L
F
LIGHT MANUAL
1
st
edition – 23
th
March 2009 Doc. n° 92-13-030-00
1-9
METEOROLOGICAL TERMINOLOGY
OAT
Outside Air Temperature is the free air static temperature expressed in
degrees Celsius (°C).
T
S
Standard Temperature is 15°C at sea level pressure altitude and de-
creased by 2°C for each 1000 ft of altitude.
H
P
Pressure Altitude is the altitude read from an altimeter when the baro-
metric subscale has been set to 1013 mb.
ENGINE POWER TERMINOLOGY
RPM
Revolutions Per Minute: is the number of revolutions per minute of the
engine’s crankshaft, divided by 2.273 (912UL) or 2.4286 (912S) yields
propeller’s RPM.
AIRPLANE PERFORMANCE AND FLIGHT PLANNING TERMINOLOGY
Crosswind
Velocity
is the velocity of the crosswind component for which adequate con-
trol of the airplane during takeoff and landing was actually demon-
strated.
Usable fuel
is the fuel available for flight planning.
Unusable fuel
is the quantity of fuel that cannot be safely used in flight.
G
is the acceleration of gravity.
TOR
is the takeoff distance measured from actual start to wheel liftoff
point
TOD
is total takeoff distance measured from start to 15m obstacle clear-
ing
GR
is the distance measured during landing from actual touchdown to
stop point
LD
is the distance measured during landing, from 15m obstacle clear-
ing to actual stop.
S/R
is specific range, that is, the distance (in nautical miles) which can
be expected at a specific power setting and/or flight configuration
per kilo of fuel consumed