ANT-IV

{{Infobox Weapon

| name = ANT-IV

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| origin = {{flagcountry|Soviet Union|1924}}

| type = Aerosan

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| crew = 2

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| image = Bundesarchiv Bild 102-09005, Russischer Propeller-Schlitten.jpg

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The ANT-IV was one of three aerosans introduced in 1924. This model, operated by a crew of two, doubled the ANT-III's {{convert|50|hp}} with its new Bristol engine, and outperformed the ANT-V's {{convert|100|hp}} Fiat engine.

In 1930 the ANT-IV began regular trips between Cheboksar and Kanash, carrying mail and priority passengers. The following year the ANT-IVs were overhauled with Soviet-produced M-11 radial aviation engines, allowing them to travel at 28 km/h.

In 1934, an ANT-IV was delivered aboard the Smolensk to Ualen where it helped rescue remotely stranded explorers from the icebreaker Chelyuskin.