performance Class 2 helicopter

performance Class 2 helicopter

A helicopter with performance such that, in case of critical power-unit failure, it is able to safely continue flight, except when the failure occurs prior to a defined point after takeoff or after a defined point before landing, in which case a forced landing may be required (ICAO).
An Illustrated Dictionary of Aviation Copyright © 2005 by The McGraw-Hill Companies, Inc. All rights reserved
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