IAS — indicated airspeed — Aviation Definition

Words for: Multiengine Operations

multiengine airplane
turbopropeller-powered
turbopropeller-powered airplane
maximum certificated takeoff weight
class rating
OEI — one engine inoperative
asymmetrical thrust
VXSE — best angle-of-climb speed with OEI
best angle of climb speed
VYSE — best rate of climb speed with OEI
best rate of climb speed
VSSE — safe intentional OEI speed
Critical Engine
VMC
safe single-engine speed
anti-icing/deicing equipment
CAS — Calibrated Airspeed
KIAS — knots indicated airspeed
81 FR 96689
VNO
VMO
MMO
crashworthiness requirements
VSO 2 formula
feathering propeller
windmilling
crashworthiness
feathered position
non-feathering
counterweighted
firewall shutoff valves
unfeathering accumulator
anti-feathering lock pins
turboprop engine
propeller synchronizer
propeller synchrophaser
fuel crossfeed
combustion heater
crossfeed mode
functional crossfeed system check
unfeathering
windshield defogging
FD/AP — flight director/autopilot
yaw damper
alternator/generator
crossfeed
paralleling circuitry
nose baggage compartment
heated pitot tubes
NAV intercept
electrothermal boots
alcohol slingers
annunciator lights
pneumatic boots
engine nacelle
yaw rate
servo
alternator/generator paralleling circuitry
generator
ballast
nacelle
airfoil sections
highly-cambered sections
propeller synchronization
Performance and limitations
accelerate-stop distance
accelerate-go distance
useful load
empty weight
basic empty weight
unusable fuel
weight and balance plotter
before takeoff checklist
nacelle lockers
nacelle fuel tanks
wing spars
undrainable oil
ground operations
unporting
turbocharged engines
safe single-engine maneuvering altitude
high-density altitude
VFE
rejected takeoff
slow flight
Spin Awareness
VMC demonstration
wingtip strobes
stall recovery procedure
stabilized descent
single-engine maneuvering altitude
full stall
fuel metering system
go-around
landing gear retraction speed
rudder blocking technique
stall training
braking effectivity
retraction speed
airframe buffet
IAS — indicated airspeed
configuration
engine inoperative flight principles
zero sideslip
derivation of VMC
dynamic VMC
static VMC
autofeather system
checklist
most unfavorable weight and center-of-gravity position
rudder deflection
rudder limiting technique
OEI climb performance
zero thrust
dead foot—dead engine
accelerated slipstream
dynamic crankshaft counterweights
static VMC determination
precautionary shutdown
Zero sideslip engine-out flight
Low Altitude Engine Failure Scenarios
Landing Gear Down
Stopping the yaw
autofeather
Engine Failure During Flight
VS — stalling speed
Multiengine Training Considerations
simulated emergencies
simulated feathered propeller

129 words in this area · Next word: configuration →

Plain English Meaning

It is simply the speed number you see on the airspeed dial in front of you, exactly as the instrument displays it, with no corrections applied.

Full Definition

The airspeed shown directly on the airspeed indicator in the cockpit, uncorrected for installation error, instrument error, or variations in air density due to altitude and temperature. It reflects the dynamic pressure sensed by the pitot-static system at the moment of reading.

Context Anchor

You use IAS constantly in normal flying, especially for takeoff, climb, , , and staying within published speed limits.

IAS — indicated airspeed

Plain English Meaning

Full Definition

Context Anchor

Derivation

Why Pilots Care

Analogy

Intuition Check

Example Sentence 1

Example Sentence 2