SUPPLEMENTS / SYMBOLS, ABBREVIATIONS, AND TERMINOLOGY 9-3
CHANGE A1 ICON A5-B / PILOT’S OPERATING HANDBOOK
CHAPTER 9
V
S0
Stalling Speed or the minimum steady flight speed at which
the airplane is controllable in the landing configuration at the
forward-most center of gravity.
V
X
Best Angle of Climb Speed is the airspeed at which delivers
the greatest gain of altitude in the shortest possible horizontal
distance.
V
Y
Best Rate of Climb Speed is the airspeed at which delivers the
greatest gain in altitude in the shortest possible time.
Meteorological Terminology
OAT
Outside Air Temperature is the free static air temperature,
obtained either from in flight temperature indications or
ground meteorological sources, adjusted for instrument error
and compressibility effects
Standard Temperature
Standard Temperature is 59 °F (15 °C) at sea level pressure
altitude and decreases by 3.6 °F (2 °C) for each 1000 feet of
altitude.
VMC
Visual Meteorological Conditions are weather conditions
within the minimum for flight under visual flight rules—also
referred to as VFR conditions.
IMC
Instrument Meteorological Conditions are weather condi-
tions below the minimum for flight under visual flight
rules—also referred to as IFR conditions.
Engine Power Terminology
Horsepower (hp)
Horsepower is the power developed by the engine.