Production
Overall only five units were built:
- Non-flying unit for static testing, scrapped
- S-23 flying unit, crashed in 1975
- S-21 rebuilt "S-23", completed in 1978, lost during an accident in 1992
- S-25 completed in 1979
- S-26 completed in 1980
The A-90 entered military service in 1979. Units S-21, S-25 and S-26 remained in active service at least until 1993.
Read more about this topic: A-90 Orlyonok
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