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Sandel ST3400H Helicopter TAWS

Sandel ST3400H Helicopter TAWS

Brand: Sandel

Product Code: 90255-B
Availability: 7 - 10 Days

Available Options

* Screen Type:

* Traffic Display:

* GPS Sensor:

* Install Options:

Sandel ST3400H Helicopter TAWS


Combining its TAWS expertise from thousands of installations in private, corporate and air-transport airplanes and years of supplying civilian and military users with its 3” and 4” primary displays, Sandel introduces the HeliTAWS - Helicopter Terrain Awareness and Warning System. Certified to the new HTAWS TSO-C194 specifically for helicopters, the HeliTAWS combines an advanced HTAWS computer with the industry’s best display technology to provide a single panel-mount, self-contained solution. 

As the World's TAWS retrofit leader, Sandel has perfected the 3ATI format along with its ultra flexible avionics interfaces. Panel space is at a premium in helicopters and its self-contained 3-ATI size allows the ST3400H to be installed in the place of an existing radar altimeter indicator. This means less modification, less cost, and less downtime. No remote black boxes involved.



  • Based on the industry standard ST3400 Part 25 Class-A TAWS
  • Designed specifically for helicopters Exceeds TSO C194 (HTAWS) standards.
  • Displays ultra-high resolution Terrain, clearly identifiable Obstacles and GPS Flight Plan
  • TSO’d Traffic indicator when interfaced to an existing TAS or TCAS
  • Radar Altimeter indicator replacement capable
  • Integral Minimums (MINS) knob with aural and discrete outputs
  • Best display performance - uses Sandel’s beautiful high brightness 3ATI display engine
  • 10,000+ Hour MTBF
  • Ultra-high resolution 3 arc-second (300’) terrain grid
  • One foot vertical obstacle resolution
  • High-resolution obstacle database
  • On-screen obstacle depiction
  • Sandel’s proven high-performance nuisance alert reduction tailored for helicopter operations
  • NVIS OPTION For missions flown under night vision goggles, the HeliTAWS can be ordered with Sandel’s proprietary on-demand Class-B NVIS option. Unlike aftermarket NVIS modifications, Sandel’s unique NVIS mode employs no external filters and does not degrade its brightness or daylight characteristics when NVIS is 'off'. 
  • Class-A HTAWS For those requiring Class-A TAWS capability the HeliTAWS supports GPWS Modes 1, 3, 4, 5 and 6. 

Version/Model Numbers:


  • 90254-B ST3400H-000 Gray, High Vibration 
  • 90255-B ST3400H-001 Black, High Vibration 
  • 90257-B ST3400H-000N Gray, High Vibration NVIS 
  • 90258-B ST3400H-001N Black, High Vibration NVIS

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File Name Size
Sandel ST3400H Heli TAWS Data Sheet 1.54MiB
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