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.
