MK XXII Helicopter Enhanced Ground Proximity Warning System (EGPWS)

The state-of-the-art MK XXII EGPWS is a full-featured system with highly advanced safety functions for IFR-equipped helicopters with a radio altimeter. This system exceeds the FAA TSO-C151b Class A requirements. It includes features such as excessive descent rate, excessive closure rate, descent after takeoff, insufficient terrain clearance, descent below glideslope, and altitude callouts for excessive bank angle, tail strike protection, and autorotation.

Enhanced Features

Proprietary Honeywell Database

		World Terrain Database (11 Regions)
		Airports
		Heliports
		Obstacles
		Oil Rigs

Look-ahead Algorithms

Alerting based on projected path (turn extrapolation) and climb performance

Internal GPS Card

Geometric Altitude

Display Interfaces

		Single
		Dual
		EFIS
		Wx Radar Indicator, MFD, Standalone

Terrain display

		Auto Display Pop-up
		Auto Range
		Enroute Terrain Display (Peaks)
		Vertical Situation Display (VSD)

EGPWS Suppress Options

		Low Altitude Mode
		Audio Inhibit (5 minutes)
		Terrain Inhibit

Classic Features

Excessive Descent Rate (Mode 1)

Excessive Closure Rate/Rising Terrain (Mode 2)

Descent After Takeoff (Mode 3)

Insufficient Terrain Clearance (Mode 4)

Descent Below Glideslope (Mode 5)

Altitude Callouts (Mode 6):

		Excessive Bank Angle
		Tail Strike Protection
		Autorotation
		Meets North Sea AVAD callout requirement

Additional Features

Airspeed Expansion

Envelope Modulation

Tower Guy Wires

Built-in Test

Specifications