Honeywell Mark XXII EGPWS is specifically configured for the dynamic factors of rotary-wing performance, which prevents Controlled Flight Into Terrain (CFIT) accidents by providing pilots with enhanced situational awareness. This modification is a fully-featured Helicopter Terrain Awareness and Warning System (HTAWS) with FAA TSO-C151b Class A and TSO-C194 approvals. The enhanced features include extensive worldwide terrain and obstacle database, look-ahead algorithms, internal GPS card, HD terrain imagery and multiple operation modes. In the event of exceeding boundaries of any alerting envelope, the EGPWS provides the flight crew with aural alert messages, visual annunciations and terrain displays, which interface with aircraft audio system, annunciators and EFIS or MFD. Multiple muting options are available for operators who regularly conduct low level operations. Depending on aircraft configurations, the EGPWS system can obtain aircraft position information either from its internal GPS system (a new GPS antenna required) or from an existing GPS system.

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