ST3400H Datasheet

Product catalog summary

Introduction
The Sandel ST3400H HeliTAWS® is a pioneering multihazard avoidance system designed for helicopters. It provides alerts against wires, terrain, and obstacles using the WireWatch® technology, enhancing cockpit operational awareness and safety.

Key Features

WireWatch® Technology: Advanced defense against wire strikes, including transmission lines whether powered or not.
TruAlert® Technology: Reduces nuisance alerts during various flight phases such as takeoff, cruise, hover, and landing.
Display: High-resolution color display for 3D terrain, obstacles, flight plans, and traffic overlay. Compatible with TAS/TCAS display interface and NVIS.

Specifications

Weight: 2.7 lb (1.2 kg)
Dimensions: Body: 9.86 in deep, 3.165 in wide x 3.165 in tall; Bezel: 3.285 in wide x 3.285 in tall
Power Requirements: 22-33 VDC, 40 watts maximum
Operating Environment: -20 °C to +70 °C, up to +55,000 ft altitude

Certification and Compliance

Exceeds TSO-C194 compliance for Helicopter Terrain Awareness and Warning System
Complies with various TSO standards including C113, C87, C118
RTCA/DO-178B Software Level C and RTCA/DO-254 Hardware Level C

Display Features

High-resolution map with GPS flight plan, terrain, obstacles, airports, and traffic
Map ranges from 0.5nm to 20nm full scale
Terrain Display Modes: Relative Mode (REL) and Topographic Mode (TOPO)

Alerting Modes

Forward Looking Terrain Avoidance
Various GPWS modes including excessive rate of descent and altitude callouts

Conclusion
The ST3400H HeliTAWS® offers a comprehensive solution to helicopter safety challenges, particularly CFIT and wire strikes, with its unique WireWatch® and TruAlert® technologies. It is a robust system designed to enhance pilot situational awareness and operational safety.

Catalog excerpts

Sandel ST3400H HeliTAWS® is the industry’s first multihazard avoidance system for helicopters that alerts against wires, terrain, and obstacles, utilizing WireWatch®— advance defense against wire strikes. It further enhances the operational awareness in the cockpit by helping helicopter pilots avoid transmission lines whether they are powered on or off. Incorporating Sandel’s proprietary TruAlert ® technology, HeliTAWS enables pilots to take off, cruise, hover and land at off-airport locations without triggering nuisance alerts. Exceeding the TSO-C194 compliance, HeliTAWS includes an easy-to-interpret, color, high-resolution display for 3D terrain, obstacles, flight plan, traffic overlay, TAS/TCAS display interface, Radalt Decent Altitude Callouts along with MIL-STD-3009 On-Demand NVIS compatibility.

Open the catalog to page 1

CFIT and wire strikes are a big problem. Sandel has a simple solution — HeliTAWS . ® Display Daylight Mode NVIS Mode Weight Only HeliTAWS from Sandel has WireWatch®, our exclusive database system for transmission lines, and TruAlert , ® that eliminates annoying false alarms from cruise right on down to the ground. Sandel LCD projection engine; LED-Backlight Sunlight Readable Class B compatible per MIL-STD-3009 (optional) 2.7 lb (1.2 kg) Body: 9.86 in deep (25.04 cm) from rear of bezel (excluding Positronics ‘D’ connectors) Body: 3.165 in wide x 3.165 in tall (8.04 cm x 8.04 cm) Bezel: 3.285 in...

Open the catalog to page 2

ST3400H Datasheet

ST3400H Datasheet

Catalog excerpts

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