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This document is intended to establish preferred abbreviations for terms used on panels, controls, displays, instruments, placards, and markings. The recommendations apply to equipment used by crew members in the flight deck of transport aircraft. The abbreviations, acronyms, and symbols do not supersede those used in airworthiness regulations or aeronautical charts or other aircraft documents.

This document is intended to establish preferred abbreviations for use on panels, controls, instruments, displays, placards and markings. The recommendations apply to terms used in the flight deck of transport aircraft. The abbreviations, symbols and codes do not supersede those used in airworthiness regulations or aeronautical charts and documents. Where conflict is possible, the operational context must be such as to resolve any ambiguity. If doubt exists, an alternative abbreviation or less truncated abbreviation should be used.

INTRODUCTION This report is intended to encourage more effort to be directed toWard improving the pilot's visibility from the cockpit of transport type aircraft wih the ultimate objective of improving safety. In the preparation of this Aeronautical Information Report, consideration Was given to pilot surveys made by the Civil Aeronautics Administration, studies made by manufacturers, and a review of the cockpit visibility provided in present day transport aircraf`t. It is recognized that a rigid specification is undesirable and may restrict development and utilization of initiative. For this reason the report is in general terms and offered as a guide.