PHOTOGRAMMETRIC ENGINEERING 
veying, aerial triangulation, and plotting 
mosaics. Making Topographical maps at 
scales ranging from 1:10,000 to 1:50,000 by 
means of aerial photography. Training, re 
search and consulting. 
Personnel 
Range of numbers employed and the aver 
age numbers: Management—3 to 6; 3. Super 
vision—2 to 15; 4. Professional—0 to 160; 41. 
Technicians—0 to 70; 14. Servicing—0 to 
40; 8. 
Aerial Data Recording—-cameras 
Type 
Length 
Lens 
Format 
Range, m. 
RC5 
11.5 cm. 
Aviogon 
18X18 
350-1,200 
RC5 
21 
Aviofan 
18X18 
630-2,100 
RC7 
17 
Aviofan 
14X14 
500-1,700 
RMK 
21 
Topar 
18X18 
630-2,100 
RC5 
21 
Aviotar 
18 X18 
4,200 
RC5 
114-21 
Aviogon 
18X18 
300-6,000 
RC7 
17 
Aviotar 
15 X15 
500-1,500 
RC8 
114—21 
Aviogon 
9X9 
300-6,000 
RC9 
8.8 
Super 
9X9 
2,000-6,000 
Zeiss 
Konvergent 
Aviogon 
18X18 
1,000-3,000 
Aerial Triangulation and Plotting 
Instruments 
1 Wild A5, 2 Wild A6, 2 Wild A7, 3 Wild 
A8, 1 Wild RT001, 1 Zeiss C8, 1 Stereocom 
parator, 1 Stereosimplex. 
RECORDING MEDIUM PRESENT AND FUTURE 
USE 
Infrared: Several projects have been flown; 
possibility this will be continued in the future. 
Color: A few projects have been flown with 
Aviogon and Aviotar objectives. At present, 
production of diapositives and prints, only, is 
carried out. 
New Instruments 
Wild Rectifier; Santoni III for plotting; 
Wild A8 and EK5 for plotting and aerotri- 
angulation; Analytical Computations for 
Block Adjustments. 
INDIA 
Organization 
governmental: Civil Survey of India (SOI) 
industry: Civil Engineering—Air Survey Co. 
of India (ASI) 
university of Roorkee (U of R) 
Activities 
SOI—Surveying from aerial photographs 
and training in photogrammetric methods; 
since 1918; plotting at scales of 1:1,000 to 
1:50,000. 
ASI—Aerial photography, surveying, mo 
saicking, mapping, litho printing, aviation 
route maps and geophysical scintillation sur 
veys; since 1927. 
U of R—The University conducts a post 
graduate course in advanced surveying and 
photogrammetry. It is a one-year course open 
to holders of a University degree in civil or 
mining engineering; since 1958. Plotting of 
scales of 1:10,000 to 1:25,000. 
Personnel 
SOI, total of 143; ASI, total of 115; U of 
R, total of 6. 
Plotting and Aerial Tri angulation 
Equipment 
SOI—8 Wild A7, 16 Wild A8, 28 Zeiss 
Stereotopes, 3 Multiplex. 
ASI—2 Multiplex tables, 11 Stereoplotting 
Williamson-Ross Sp. 3 projectors. 
U of R—1 Multiplex, 1 Wild A8, 1 Zeiss 
Stereotope, 20 stereoscopes and stereometers, 
3 Zeiss sketch masters, 1 Radial Secator, 1 
rectifier, 1 phototheodolite. 
Aerial Data Recording 
cameras 
SOI—Williamson Eagle IX, 6 in. (15 cm.); 
12 in. (30 cm.); 9 in.X9 in. format Wild RC 
5a, 11.5 cm.; 21 cm.; 18X18 cm. format. 
ASI—RC 8, 4.5 in. (11.5 cm.); 7X7 in. film; 
Eagle IX, 6 in., 9X9in. film; F. 52, 12 in.; 20 
in., 36 in., 8jX7 in. film; K20, 163, mm. 4X5 
in.; Varitron Camera, 28 mm, 70 mm. 
INFRARED AND COLOR 
SOI—Infrared expected to be utilized for 
forestry purposes. 
ASI—Infrared used for forest stock survey. 
Color—oblique views and vertical photogra 
phy used for forestry, crop estimation, etc. 
New Instruments and Techniques 
SOI—Instrument: ITC—Jerie Analogue 
Computer for block adjustment of aerial 
triangulation. Techniques: Block adjustment 
for economic provision of control from mini 
mum field control.