Class A HTAWS Review of Alerting now published

Class A HTAWS Warning Annunciation (CAP 1747) reports on research into the optimum means of alerting helicopter flight crews to Class A Helicopter Terrain Awareness and Warning System (HTAWS) alerts.

It complements the development work on Class A HTAWS alert envelopes reported in CAP 1538 and CAP 1519 and addresses AAIB Safety Recommendations 2016-11 and 2016-12.

Class A HTAWS Warning Annunciation

SW2019/001

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