Browse everything in the library, or type a section number, ACS code or plain-language question.
158 ms- §1.2REGULATION — OFFICIAL DEFINITION
TVOR
TVOR means very high frequency terminal omnirange station.
- §1.1REGULATION — OFFICIAL DEFINITION
Takeoff safety speed
Takeoff safety speed means a referenced airspeed obtained after lift-off at which the required one-engine-inoperative climb performance can be achieved.
- §1.1REGULATION — OFFICIAL DEFINITION
Takeoff thrust
Takeoff thrust with respect to turbine engines, means the jet thrust that is developed under static conditions at a specific altitude and atmospheric temperature under the maximum conditions of rotorshaft rotational speed and gas temperatur
- §1.1REGULATION — OFFICIAL DEFINITION
Tandem wing configuration
Tandem wing configuration means a configuration having two wings of similar span, mounted in tandem.
- §1.1REGULATION — OFFICIAL DEFINITION
Time in service
Time in service with respect to maintenance time records, means the time from the moment an aircraft leaves the surface of the earth until it touches it at the next point of landing.
- §1.1REGULATION — OFFICIAL DEFINITION
Traffic pattern
Traffic pattern means the traffic flow that is prescribed for aircraft landing at, taxiing on, or taking off from, an airport.
- §1.1REGULATION — OFFICIAL DEFINITION
True airspeed
True airspeed means the airspeed of an aircraft relative to undisturbed air. True airspeed is equal to equivalent airspeed multiplied by (ρ0/ρ) 1/2.
- §1.1REGULATION — OFFICIAL DEFINITION
United States
United States in a geographical sense, means (1) the States, the District of Columbia, Puerto Rico, and the possessions, including the territorial waters, and (2) the airspace of those areas.
- §1.1REGULATION — OFFICIAL DEFINITION
United States air carrier
United States air carrier means a citizen of the United States who undertakes directly by lease, or other arrangement, to engage in air transportation.
- §1.1REGULATION — OFFICIAL DEFINITION
Unmanned aircraft
Unmanned aircraft means an aircraft operated without the possibility of direct human intervention from within or on the aircraft.
- §1.1REGULATION — OFFICIAL DEFINITION
Unmanned aircraft system
Unmanned aircraft system means an unmanned aircraft and its associated elements (including communication links and the components that control the unmanned aircraft) that are required for the safe and efficient operation of the unmanned air
- §1.2REGULATION — OFFICIAL DEFINITION
V
V A means design maneuvering speed.
- §1.2REGULATION — OFFICIAL DEFINITION
VFR
VFR means visual flight rules.
- §1.1REGULATION — OFFICIAL DEFINITION
VFR over-the-top
VFR over-the-top with respect to the operation of aircraft, means the operation of an aircraft over-the-top under VFR when it is not being operated on an IFR flight plan.
- §1.2REGULATION — OFFICIAL DEFINITION
VGSI
VGSI means visual glide slope indicator.
- §1.2REGULATION — OFFICIAL DEFINITION
VHF
VHF means very high frequency.
- §1.2REGULATION — OFFICIAL DEFINITION
VOR
VOR means very high frequency omnirange station.
- §1.2REGULATION — OFFICIAL DEFINITION
VORTAC
VORTAC means collocated VOR and TACAN.
- §1.1REGULATION — OFFICIAL DEFINITION
Warning area
Warning area A warning area is airspace of defined dimensions, extending from 3 nautical miles outward from the coast of the United States, that contains activity that may be hazardous to nonparticipating aircraft. The purpose of such warni
- §1.1REGULATION — OFFICIAL DEFINITION
Weight-shift-control aircraft
Weight-shift-control aircraft means a powered aircraft with a framed pivoting wing and a fuselage controllable only in pitch and roll by the pilot's ability to change the aircraft's center of gravity with respect to the wing. Flight control