Section 2 System Overview
2-10
IDU-450 EFIS Software Version 8.0H (Rotorcraft)
1
st
Ed Nov 2018
TIS-B
Traffic information Service-Broadcast
TLT Tilt
TRANS Transition
TRK Track
TRNDO Tornadic
TSO
Technical Standard Order
TTA
Time to Alert
TURB Turbulence
USB
Universal Serial Bus, data storage device
USR User
Waypoint
UTC
Universal Time Coordinated
VA
Heading to Altitude (ARINC-424 Leg)
V
A
Speed above which it is unwise to make full application of
any single flight control
VAL
Vertical Alert Limit
V
APP
Target approach airspeed
VD
Heading to DME Distance (ARINC-424 Leg)
VDI Vertical
Deviation
Indicator
VERT Vertical
V
FE
Maximum flap extended speed
VFOM
Vertical Figure of Merit
VFR
Visual Flight Rules
VHF
Very High Frequency
VI
Heading to Intercept (ARINC-424 Leg)
VLOC
VOR/Localizer
VLON
Vertical Loss of Navigation
VM
Heading to Manual Termination (ARINC-424 Leg)
V
MO
Maximum operating limit speed
VNAV
Vertical Navigation (also VNV)
V
NE
Never exceed speed
V
NO
Maximum structural cruising speed or maximum speed for
normal operations
VOR
VHF Omnidirectional Radio
VORTAC
Collocated VOR and TACAN
VP
VFR waypoints (five digits beginning with “VP”)