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recently, cctv military channel showed in its "military report" program that a certain brigade of the northern theater air force dispatched mi-171sh search and rescue/combat transport helicopters to the bohai sea airspace to conduct a maritime rescue exercise. it should also be pointed out that the outside world believes that the z-20ks search and rescue helicopter also participated in the exercise, but there was no trace of the aircraft in the public reports.

against the backdrop of rapid development of china's military helicopters, why does the russian-made mi-171sh helicopter still appear in the pla's combat sequence? the main reason is that it is cheap and available in large quantities. the mi-171sh helicopter is indeed unique.

back in the late 1980s, the newly established chinese army aviation corps introduced the sikorsky s-70c-2 black hawk helicopter from the united states, but as the relationship between china and the united states deteriorated, it was naturally unlikely to continue to purchase black hawks. for this reason, the chinese army aviation corps turned its attention to the mi-17/mi-171 medium-sized transport and multi-purpose helicopter developed by the soviet mil design bureau.

the mi-17/mi-171 series helicopters are cheap, easy to produce, durable and safe, so they are also known as the "ak-47" in the helicopter kingdom. however, after being equipped and used by the chinese army aviation corps, it was found that compared with the s-70c-2 developed by sikorsky, the mi-17/mi-171 still has shortcomings in many aspects, and the quality and performance are far behind the "black hawk" helicopter. for example, in terms of plateau performance and corrosion resistance, the mi-17/mi-171 is obviously weaker than the "black hawk" helicopter.