Shelters for Observers
Translated from the French: "Instruc
tion provisoire sur les Abris cuirasses
demontables pour Observateurs," by
the American Expeditionary Forces.
Edited at the
ARMY WAR COLLEGE
THE GENERAL SERVICE SCHOOLS
Class Numbeil.JL&^S.-:?-1.^ i
Washington, January is, 1918.
The following pamphlet entitled "Provisional Instructions on
is published for the
information of all concerned.
[A. G. 0., No. 062.1.]
order of the Secretary of War:
TASKER H. BLISS,
General, Chief of Staff.
H. P. McCAIN,
The Adjutant General.
Ministry of War.
July 25, 1916.
Department of Engineering.
ARMORED DEMOUNTABLE DUGOUTS FOR
Armored demountable dugouts
for lookouts are metal con
structions which, having been set up, present the form either
of the frustrum of a cone, or of the frustrum of a pyramid.
They are divisible into parts of which the individual weight
does not exceed 70 kilos, which renders their transportation easy.
They carry three observation loopholes.
Ingeneral they should be partially sunk on top of a pit, dug
in front of a trench or at the end of a gallery or covered sap.
Itis convenient to place them on a suitable flooring permitting
There are three types of these dugouts:
Ist.—Type S. T. G. (Figure I).—'Frustrum of a cone of half
hard cast steel
.03 meters in thickness, which can be taken
down into six rings and a cap, each one fitting into the others.
The solidity of the construction is assured by four uprights
passing through the cap and bolted to the bottom ring. Total
weight 475 kilos.
2d. Type Saint Jacques (Figure 2). Frustrum ofa cone which
can be taken down into five rings of half-hard laminated steel
of .025 meters in thickness and a cap, each one fitting into the
others. The s