SECTION I
INTRODUCTION
1.
Scope
This manual provides information for the care and use of the Surveying Altimeter, Type FA-199, manufactured by
Wallace and Tiernan, Belleville, N. J. (fig. 1). Sections II through VIII include description, preparation for shipment or
storage, principles of operation, operating instructions, methods of altimetry and maintenance procedure.. Section VIII
consists of calibration and conversion tables and charts for reference by the text.
2.
Description and Use
The Surveying Altimeter is a portable instrument provided with a carrying strap and is used in obtaining elevations
for supplementary vertical control of aerial photographs for topographic mapping, pipe line and highway location,
geological and geophysical exploration, and similar requirements.