The Ka-25 emerged from an earlier demonstrator that demanded heavy maintenance for limited flying time, and it took from the early 1960s into the 1970s to reach service. By the standards of its period, the operational helicopter was respectable rather than deficient when judged against modern aircraft. The anti-submarine variant combined radar, dipping sonar, a towed magnetic detector, torpedoes, and conventional or nuclear depth charges. That package made the Kresta's hangar and flight deck part of a distributed detection-and-attack system rather than mere aviation accommodation. Adoption by several foreign navies, including procurement-conscious Yugoslavia, supports the judgment that the mature aircraft was useful and dependable enough to export.
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Ka-25 makes organic ASW aviation practical
The Ka-25 turns Kresta II's elaborate helicopter facilities into an organic sensor-and-weapon extension for finding and attacking submarines beyond the ship's hull sonar.