Category
page 1Navigational flight instruments
pitot tube
pressure measurement instrument used to measure fluid flow velocity
instrument landing system
ground-based visual aid for landing
attitude indicator
instrument for determining the pitch and roll of an aircraft

variometer
In aviation, a variometer – also known as a rate of climb and descent indicator (RCDI), rate-of-climb indicator, vertical speed indicator (VSI), or vertical velocity indicator (VVI) – is one of the flight instruments in an aircraft used to inform the pilot of the rate of descent or climb. It can be calibrated in metres per second, feet per minute (1 ft/min = 0.00508 m/s) or knots (1 kn ≈ 0.514 m/s), depending on country and type of aircraft. It is typically connected to the aircraft's external static pressure source.
radar altimeter
device which measures altitude above the terrain presently beneath an aircraft or spacecraft
airspeed indicator
instrument used in an aircraft to display the craft's airspeed, typically in knots, to the pilot
Flight Management System
component of a modern aircraft avionics
electronic flight instrument system
area navigation
aircraft navigation method
primary flight display
modern aircraft instrument
horizontal situation indicator
flight instrument used to inform the pilot of an aircraft's heading, especially at landing
flight director
flight instrument