Radar Altimeters

True altitude, true safety. Robust and reliable in demanding environments.

Radar Altimeter Terrain Series RA6500
  • Aircraft Radar Altimeters lined up in this order left to right: RA-5500, RA-6500, & RA-7500.

INTRODUCING THE ALL-NEW TERRAIN SERIES RADAR ALTIMETERS

FreeFlight's Terrain Series aircraft radar altimeters feature the first major upgrade to RF circuitry in decades, built from the ground up, to mitigate spurious 5G interference.

  • Eliminate spurious terrestrial datalink spectrum interference including 5G, identified by an RTCA Special Committee to interfere with RF spectrums
  • Retrofit capability with legacy aircraft - utilize existing antennas, control heads, and cabling as needed.
  • Robust, reliable, and rugged enclosure designed for use in mission-critical, military-grade environments.
  • Interfaces with standalone RAD-40 and RAD-45 display indicators for smooth and accurate LED AGL readings.
  • Single and Dual Install kits available.
CONTACT SALES FIND A DEALER Download Specifications

‏‏‎ ‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎Solutions for Every Industry

‎‏‏‎ ‎‏‏‎‎‏‏‎ ‎‏‏‎FreeFlight Systems designs, manufactures, sells, and supports high-integrity avionics systems that improve the safety, efficiency, and affordability of flying.

  • Front view of the RA-6500 Radar Altimeter designed for general aviation.
  • freeflight-systems-ra-5500-radar-altimeter
Radar Altimeter for General Aviation Aircraft

RA-5500

Built and engineered for general aviation aircraft, the RA-5500 radar altimeter provides enhanced features like DSP-based RF processing designed to combat 5G and other spurious interference.

  • TSO-Certified (TSO-C87), ETSO-Certified (ETSO-2C87), and approved to DO-160E, and DO-178 DAL C.
  • Multi-interface design supports RS-485/422, RS-232, and ARINC 429.
  • Engineered for part 27 & fixed-wing markets.
CONTACT SALES FIND A DEALER Download Specifications
  • Front view of the RA-6500 Radar Altimeter designed for transport rotorcraft and business jets.
  • Side angle view of the RA-6500 Radar Altimeter designed for transport rotorcraft and business jets.
Radar Altimeters for Rotorcraft & Business Jets

RA-6500

Designed for business, regional, airline transport, and heavy rotary-wing platforms, the RA-6500 provides aircraft with a single or dual-install radar altimetry solution. The all-new system features customized RF filters and DSP technology to combat spurious interference from the environment and a multi-interface design that includes ethernet connectivity and USB On the Go (OTG).

  • TSO-Certified (TSO-C87a), ETSO-Certified (ESTO-2C87), and approved to DO-160G, and DO-178 DAL B.
  • Multi-interface design supports RS-485/422, RS-232, ARINC 429, Ethernet connectivity.
  • Engineered for part 29 and business jets.
  • Single or dual-install available.
CONTACT SALES FIND A DEALER Download Specifications
  • Front view of the RA-7500 Radar Altimeter designed for military and government
  • Side angle view of the RA-7500 Radar Altimeter designed for military and government
Radar Altimeters for Military & Government Aircraft

RA-7500

The RA-7500 is a DAL B-rated radar altimeter designed for governments and militaries.  The unit is constructed with a rugged enclosure allowing for harsh environments and equipped with enhanced features such as DSP-based RF processing to combat spurious interference from the environment and a multi-interface design that includes ethernet connectivity and USB On the Go (OTG).

  • TSO-Certified (TSO-C87a), ETSO-Certified (ESTO-2C87), and approved to DO-160G, and DO-178 DAL B.
  • Multi-interface design supports RS-485/422, RS-232, ARINC 429, Ethernet connectivity, and USB On the Go (OTG).
  • Engineered for military and government.
  • Single or dual-install available.
CONTACT SALES FIND A DEALER Download Specifications
  • RADARALTIMETERS_0007_FreeFlight_0066_SK4A4236
  • RADARALTIMETERS_0006_FreeFlight_0067_SK4A4232
  • RADARALTIMETERS_0005_FreeFlight_0068_SK4A4227
The #1 Radar Altimeter for Part 27 Rotorcraft

RA-4500

The RA-4500 is certified to DO-160E and DO-178B Level C and is ARINC 429 capable. Paired with the FDC-500 Digital to Analog Convertor, the RA4500 can be installed into turboprops and light business jets as a replacement for the KRA405B and other legacy altimeters.

CONTACT SALES Learn More Download Specifications

OPTIONAL ACCESSORIES

RAD-40 DISPLAY

Available as a standard or night vision goggle (NVG) capable display, the RAD-40 offers an LED readout of AGL information.‏‏‎ ‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‏‏‎ ‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‏‏‎ ‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎‏

  • Panel-mounted display provides critical AGL information to the pilot
  • Bright LED read-out as reported from the Radar Altimeter through a standard serial interface
  • Ability to activate five trip-point discrete outputs (100-1,000 ft.)‏‏‎ ‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‏‏‎ ‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎ ‎‏‏‎ ‏‏‎ ‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎
DOWNLOAD SPECIFICATIONS
Radar Altimeter Display

RAD-45 DISPLAY

Available as a standard or night vision goggle (NVG) capable display, the RAD-45 offers an LED readout of AGL information and trend information.

  • Panel-mounted display provides critical AGL information to the pilot as well as ascending and descending trend information.
  • Bright LED read-out as reported from the Radar Altimeter through a standard serial interface
  • Compliant with European Radar Altimeter display requirements.
DOWNLOAD SPECIFICATIONS

FTG-410 TONE GENERATOR

The FTG-410 gives pilots important audio alerts when operating at low altitude, at nighttime, over water, or rough terrain.‏‏‎ ‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‏‏‎ ‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‏‏‎ ‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎‏‏

  • Audio alerting enhancement to call attention to critical altitudes when operating in hazardous environments
  • Compatible with existing avionics and audio systems
  • Two-channel system provides maximum value and flexibility in installation

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