KDC 481T Central Air Data Computer | Helicopter, TCAS

The KDC 481T is the Central Air Data Computer that processes pitot and static pressures and air temperature inputs for the KAD 480 Air Data System. The processed information is supplied to both the KCP 520 Flight Computer and KAV 485 Altimeter/Vertical speed indicator. The KDC 481T uses a strap module which contains aircraft specific information required for overspeed protection. The Central Air Data Computer is also capable of supplying  air data information to optional Navigation Management Systems.

Features

This KDC 481T helicopter version provides TCAS/RVSM operations and rotor modulation immunity.

Specifications

Weight:
4.8 lb (w/ rack)

Dimensions:
3.25 x 5.43 x 13.63 in (w/ mating connector)

Mounting:
remote with supplied rack

Altitude Range:
-1,000 ft – 55,000 ft

Temperature:
-55°C to 70°C

Power Inputs:
28 VDC @ 500 mA

Inputs:
Test, Gear up/down, Test Clock, Test TXD, TAT Probe Heat, Pitot Probe Heat, Static Source Heat, AOA Sensor, Fast/Slow Deviation, Altitude SSEC, Airpseed SSEC, 40% Flap, 100% Flap, Temp Sensor Select, Rosemount Temp Hi, Rosemount Temp Lo, AOA Signal, 429 Channel 1 thru 7, TCAS Installation, Bus Speed Select, Spare 1, Spare 2, Spare 3, Spare 4, Spare 5

Outputs:
Over and under 50 Kts, Overspeed Warning, Test RXD, Transponder, AOA Hi, +12 Vdc Reference, Discrete #1, Discrete #2, Discrete #3, Discrete #4, Discrete #5, Discrete #6, 429 Channels, Instruments 1, Instruments 2, Flight Control, General Purpose

Environmental:
RTCA/DO-160C
TSO C2d, C8d, C10b, C43b, C46a, C88a, C95, C119a