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National Advisory Committee for Aeronautics, Report - Standard Atmosphere - Tables and Data for Altitudes to 65,800 Feet

As the result of recommendations made by the Airworthiness,
the Operations, and the Meteorological Divisions, the ICAO
Council at a meeting on 23 June 1950 agreed that a joint sub-
commission of the Commission for Aeronautical Meteorology
and the Aerological Commission of the International Meteoro-
logical Organization be established to discuss with representa»
titres of I CAO the problem of establishing a detailed specification
and data of the I CAO standard atmosphere defined in general
terms in Part I of Annex 8 (Standards and Recommended
Practices for the Airworthiness of Aircraft).

A working group consisting of the above mentioned repre-
sentatives met in July/August 1950 in Montreal and established
a proposal for a detailed specification of the I CAO standard
atmosphere. This proposal was included in Doc 7041 (ref. 1)
and at the beginning of 1.951 was circulated to all contracting
states for comments.

On 7‘ November 1952 the I CAO Council approved the detailed
specification of the I CAO standard atmosphere in accordance
with Doc 7041 and directed the Secretary General to publish the
detailed specification and its associated tables and diagrams in
the form of this technical manual.

This manual is intended to facilitate the uniform application
of the I CAO standard atmosphere defined in Annex 8 (ref. 2)
and to provide the users of the standard atmosphere with con-
venient sets of data that are accurate enough for all practical
uses and are based on intemationally agreed physical constants
and conversion factors. For practical engineering purposes,
the data contained herein may be considered equivalent to those
of previously adopted standard atmospheres.

This manual contains a detailed specification of the
ICAO standard atmosphere defined in Annex 8 (ref. 2) to
the Convention of International Civil Aviation, together
with tables and diagrams showing the detailed characteristics
of the standard atmosphere.

The basic data of the specification are given herein
mainly in the fundamental c.g.s. system of units. The
data in the actual tables and diagrams of the standard
atmosphere are given in terms of the basic units meter-
kilogram (weight) -second, meter-kilogram(mass) -second, foot-
pound(weight)-second and foot-pound(mass)-second.