IX INTERNATIONAL CONGRESS 
OF PHOTOGRAMMETRY 
London 1960 
YUGOSLAV NATIONAL REPORT 
In the application of photogrammetry during the period 
between the VIII and IX International Congress of Photogrammetry most 
attention was paid to the preparation of basic topographic maps at the 
scales of 1:5,000, 1:10,000 and 1 : 25,000, as well as to cadastral plans at 
the scale of 1 : 2,500 and larger. Beside that, photogrammetry was largely 
used in other fields of economic life, such as in agriculture, forestry, 
geology, engineering, urbanism, then for drainage, irrigation and various 
other technical purposes. 
Photogammetric mapping is carried out by the Federal Pho- 
togrammetric Institute, the Geographical Institute of the Yugoslav Pe- 
ople’s Army and some republican and university photogrammetric insti- 
tutions. 
Flights for air survey photography are carried out primarily 
for mapping purposes as well as for various economic purposes. The areas 
have been photographed using aircrafts of the Douglas type adapted to 
the specific conditions of photogrammetric survey. Service ceiling for this 
type of aircraft is 6.000 m and the cruising speed about 260 km/h. Maxi- 
mum duration of flight 7h. 
Photographic equipment includes: Wild RC 5a and RC 8 with 
Aviotar normal angle lens f — 21 cm and Aviogon wide angle lens, 
f == 11.5 cm. The pictures, 18 X 18 cm in size, are taken on an aerial 
survey film 19 ecm wide which is accommodated in interchangeable roll 
film magazines holding 60 m of film for 280 exposures. 
Wild RC 7a with Aviotar normal angle lens f — 17 ecm and 
Aviogon wide angle lens f — 10 cm. The pictures 14 X 14 cm in size are 
taken on glass plates and the magazine can hold 80 plates. 
Only vertical aerial photographs are taken and no special 
equipment is provided to insure a permanently vertical position of the 
optical axis during the flight. Since large scale maps are available for the 
whole state territory, we use mostly visual navigational methods and no 
special navigation devices are used for the purpose of maintaining the 
planning lines of flight. We also use automatic pilots as an aid.