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An-10 Ukraina

Antonov · Airliner · Early Jet (1946–1969)

An-10 Ukraina — Airliner
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The Antonov An-10 Ukraina was a Soviet four-engine turboprop airliner — the world's first turboprop airliner with a field-airlift fuselage cross-section that could double as a military transport. Antonov built 108 An-10s between 1957 and 1961 at the Voronezh and Kazan plants. The aircraft entered Aeroflot service in July 1959 as the principal Soviet domestic medium-range airliner. The An-10 was withdrawn from passenger service in 1972 after a series of fatal in-flight breakups; the technology was carried forward in the more-successful military Antonov An-12 derivative.

The An-10 used four Ivchenko AI-20 turboprop engines (4,000 shp each) — the same engine family that powered the contemporary Ilyushin Il-18 airliner. Maximum speed 423 mph; range 1,200 miles with full load; service ceiling 33,000 ft. Capacity: 84 passengers in standard four-abreast configuration, expandable to 130 passengers in high-density configuration. The aircraft used a high wing layout with wide cabin cross-section — atypical for an airliner but well-suited to the dual military / civil mission. The An-10's main visual distinction from the contemporary Il-18 was the high wing layout (vs. the Il-18's low wing).

An-10 service was prematurely curtailed by structural-failure problems. A 1972 An-10 in-flight breakup near Kharkov, Ukraine on 18 May 1972 killed 122 people; subsequent investigation revealed widespread fatigue cracks in the wing roots of the entire An-10 fleet. Aeroflot grounded the type immediately and never returned it to passenger service; the surviving An-10 airframes were transferred to military cargo duty for several years before final retirement around 1976. The military An-12 variant — using the same wings, fuselage cross-section, and engines but with a strengthened structure and rear cargo door — proved much more successful and went on to a 7,000+ airframe production run.

For Kids — a shorter, friendlier version

The Antonov An-10 Ukraina was a Soviet four-engine turboprop airliner from the late 1950s. About 108 An-10s were built between 1957 and 1961. The plane entered Aeroflot service in 1959. The An-10 was withdrawn from passenger service in 1972 after a series of fatal crashes.

The An-10 is 112 feet long with a 124-foot wingspan, longer than a Boeing 737. Four Ivchenko AI-20 turboprop engines each make 4,000 horsepower. Top speed is 423 mph, faster than most race cars. The plane carried 84 to 130 passengers.

The An-10 had an unusual high-wing layout for an airliner, with a wide cabin. The high wing made the plane easy to convert to a military transport. Soviet planners liked dual-use airliner-cargo planes that could carry troops in war.

By 1972, three fatal An-10 breakups had occurred from fatigue cracks in the wings. Aeroflot grounded the An-10 from passenger service. The military An-12 derivative was more successful, with stronger wings and a cargo ramp. The An-10 is remembered as a transition design that led to the much better An-12.

Fun Facts

  • The An-10 Ukraina was a Soviet four-engine turboprop airliner.
  • About 108 An-10s were built between 1957 and 1961.
  • The An-10 is 112 feet long, longer than a Boeing 737.
  • Top speed is 423 mph, faster than most race cars.
  • The plane carried 84 to 130 passengers.
  • Three fatal wing breakups grounded the An-10 in 1972.
  • The military An-12 derivative was much more successful.

Kids’ Questions

Why high wings on an airliner?

Most airliners have low wings under the body. The An-10 has high wings above the body, like a military transport. This made the An-10 easy to convert to a cargo plane (as the An-12) and gave a wide flat cabin floor for passengers or cargo. Soviet designers loved dual-use planes that could switch between airline and military jobs.

Why did wings fail?

The An-10's wings had fatigue cracks from years of takeoffs and landings. Three An-10s broke up in flight: 1959, 1972 Kharkov (84 lost), and others. Soviet inspectors found that the wing-spar design had weak spots. Aeroflot grounded all An-10s rather than fix them. The newer An-12 had a different stronger wing.

How did the An-12 succeed?

The An-12 used the An-10's body but with strengthened wings, a rear cargo ramp, and better landing gear. The An-12 was a military plane, so it was inspected and maintained more carefully than civilian An-10s. About 1,248 An-12s were built between 1957 and 1973, the Soviet equivalent of the American C-130 Hercules.

Variants

An-10 (basic, 1957-1958)
Original 1957 production. AI-20A engines. About 35 built.
An-10A (1959-1961)
Lengthened-fuselage variant carrying 100 passengers. AI-20K engines. About 73 built — the most-produced An-10 sub-variant.

Notable Operators

Aeroflot
Sole significant user. Operated ~100 An-10s on Soviet domestic medium-range routes 1959-1972. Withdrawn from passenger service after the 18 May 1972 Kharkov fatal breakup.
Soviet Air Forces (post-1972)
Surviving An-10 airframes transferred to Soviet military cargo duty after Aeroflot retirement. Final military retirement ~1976.

Frequently Asked Questions

Why was the An-10 withdrawn from service?

An 18 May 1972 in-flight breakup near Kharkov, Ukraine killed 122 people. Investigation revealed widespread fatigue cracks in the wing roots of the entire An-10 fleet. Aeroflot grounded the type immediately and never returned it to passenger service. The structural problem was specific to the An-10's high-wing airliner-stress envelope; the related An-12 military variant did not suffer the same issue.

How is the An-10 different from the An-12?

Same airframe (wings, fuselage, engines, cockpit) but the Antonov An-12 is the military cargo variant with strengthened wing structure, rear cargo ramp, and tail gunner position. The An-10 is the airliner variant with a sealed rear fuselage, passenger cabin, and four-abreast seating. The An-12 was vastly more numerous (~1,300 built) and in-servicely successful than the An-10.

How many An-10s were built?

108 airframes between 1957 and 1961 at the Voronezh and Kazan plants. Production ended in 1961 because Aeroflot's order requirements were satisfied and the related An-12 was absorbing Antonov's production capacity.

Are any An-10s preserved?

About 4 airframes survive in 2026 in static-display condition at Russian aviation museums (Monino, Khimki). No An-10 is currently airworthy; the type's structural-fatigue history makes restoration to airworthiness impractical.

Sources

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