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HISTORY
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Interesting shot from the Cold Warera – exchange visit of soviet BISes in Finland. This unique event was later exceeded by delivery of BISes for Finnish Air Force. BIS was not rst
MiG-21 variant in Finnish Air Force.Fishbeds served in Finland for more than 35 years.
Modernized MiG-21BIS of Indian Air Force
Izdeliye 75 - This was a version primari-
ly built for the needs of the Soviet PVO and
VVS. This is a somewhat clouded version,
as there were two differing types built under
this designation. This consisted of one type op-
timized for the PVO and equipped with the
‘Lazur’ that was fed with intercept inputs from
ground based radar stations. The other was
equipped with the ‘Polyot-OI’ ILS (Instrument
Landing System) and supplied to the VVS.
The systems were incompatible, and so only
one or the other could be installed.
Izdeliye 75A - This was an export version
equipped with the ‘Lazur’ system and a slight-
ly modied avionics t. It was in service with
some former Warsaw Pact members (Bulga-
ria, East Germany and Poland).
Izdeliye 75B - This was an export version
equipped with the ‘Polyot-OI’ ILS system, and
was in use with other Warsaw Pact nations
and some Third World countries. Among some
users, this version was given the unofcial de-
signation MiG-21BIS-SAU.
Another 301 MiG-21BIS aircraft to Izde-
liye 75B standard were built in India by HAL
from 1980 to 1987 under license. The seven-
ty-ve of these were assembled from compo-
nents supplied directly from the Soviet Union
in 1977. These aircraft received IAF specic
navigation and communication equipment du-
ring assembly.