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There you will also find several enlightening exhibits prepared by the
Wright Air Development Center and the Aeronautical Chart and Information
Center. Some of these will explain phctogrammetnc compdation methods.
Instruments utilized will be there for your examination. At noon there will
be a showing of the Air Force motion picture, entitled “Highways in the Sky”.
It depicts graphically the making and utilization of aeronautical charts in war
and in peace. You will note, too, how different are the charts used for the
navigation of piston engine air planes as compared with jet aircraft.
It is not my intention today to speak of the technical aspects of Air Force
photogrammetry, or of other phases of aeronautical charting. The speakers
you will hear today and tomorrow will provide that information for you
thoroughly, so as to give you an adequate exposition of methods and problems.
While I am not a photogrammetrist, I have a full appreciation of what
photogrammetry has meant in the compilation of aeronautical charts.
The production of these charts is one of the functions of the Air Photo
graphic and Charting Service which I commanded until recently. It is accom
plished at the Aeronautical Chart and Information Center in St Louis, Missouri.
From that installation every month come some five million aeronautical
charts to be distributed to users all over the earth. Information from aerial
photographs, extracted by photogrammetric methods, has been instrumental
in imparting to them a very high degree of accuracy. It may interest you to
know that the Air Force has produced some 17 million square miles of Trimet-
rogron photography and that approximately 80 per cent of it has been com
piled and has been incorporated into aeronautical charts covering various parts
of the world.
This kind of cooperation, I believe, is essential to peace in a free world.
Our concept of peace is not merely an absence of war. It envisions a community
of free nations working separately and together for the good of all its peoples
and for the strength of its arms which, it hopes, will never be used.
Your presence today augurs well for that effort. Your desire to share your
techniques and your discoveries with your fellow photogrammetrists manifests
your belief in the principles underlying peace. It is therefore my great pleasure
to welcome you on behalf of the United States Air Force.
ADRESSE DE BIENVENUE
DU GENERAL BRIGADIER BROOKE E. ALLEN DES FORCES
AERIENNES DES ETATS UNIS A LA SOCIETE INTERNATIO
NALE DE PHOTOGRAMMETRIE A WASHINGTON D.C.
le 15 septembre 1952.
Aujourd’hui c’est la première fois que les Forces Aériennes des Etats Unis
ont la chance de saluer officiellement les membres de la Société Internationale
de Photogrammétrie, unis en territoire américain.
Ainsi l’occasion pour nous est d’une importance histonque. Puis nous
sommes heureux d’avoir le Congrès International de cette société dans la ville
capitale des Etats Unis. C’est un honneur jusqu’ici joui par six capitales en
Europe.