Aviation's Panel Mount Avionics Installation Leader

The RAD-40 (TSO-C87) is a panel-mount digital display, compatible with the FreeFlight Systems RA-4000 and RA-4500 Radar Altimeters. This display provides the pilot with a precise readout of the aircraft’s height above-ground-level on a bright LED readout. The RAD-40 includes a pilot-selectable Decision Height (DH) and five additional trip points (100-1000 ft.), all with discrete outputs designed to control an audible tone or interface to third party equipment. Activating the trip points provides alerts to the flight management system (FMS) or navigation management system if the aircraft descends through these altitudes -- an additional safety feature for the pilot.

In addition to the standard version, a Night Vision Goggle (NVG) compatible display is available. For certain installations, a display mounted in a round faceplate adapter is also offered as an option.

  • Bright LED readout
  • Standard RS-422 serial interface
  • TSO-certified to C87
  • Easy to set
  • Five trip-point discrete outputs
  • Compatible with RA-4000 and RA-4500
  • Night Vision Goggle (NVG) compatible display
  • Round faceplate adapter for display

  • Altitude Range: -99 to 9999 ft.*
  • Power Requirements: 9 – 36 VDC; 450 mA @ 28 VDC
  • Environmental: -4°F to +131°F (-20°C to +55°C)
  • Alt: 50,000 ft. (15,200 m)
  • Size (HxWxL): 1.39 x 3.54 x 4.62 in. (3.5 x 9.0 x 11.7 cm)
  • Weight (2): 0.38 lbs. (0.17 kg)
  • Type: LED, yellow seven segment
  • Update Rate: 2 times/sec.
  • Decision Height Selection: 10-ft. increments to 200 ft., 50-ft. increments from 200 to 950 ft.
  • Flags: Displays Dashes (“----“) when altimeter is unlocked
  • Self-test: Lights all “8’s” for LEDs and activates the DH LED
  • DH Alert: Internal DH LED and external discrete output
  • Trip Point Outputs: Five fixed trip points: 100, 150, 200, 500 and 1000 ft.
  • FAA Authorization: TSO-C87
  • EASA Authorization: ETSO-2C87
  • Environmental: DO-160F
  • Software: DO-178B, Level D

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Prop 65 Warning: This product may contain chemicals known to the State of California to cause cancer, and birth defects or other reproductive harm.