It was on this day in aviation history that the Antonov An-24 took to the skies over the Soviet Union.

An An-24B
The Antonov An-24 was created on the drawing boards at Antonov Design Bureau in the mid to late 50s of the previous century. Initial production was by the Kyivm, Irkutsk, and Ulan-Ude Aviation Factories.
The aircraft was designed as a replacement for the piston-powered Ilyushin Il-14 Aircraft for transport up to medium-length routes. A design consideration was the suitability of the aircraft to operate van unprepared rough runways in the remote regions of the Soviet Union. this resulted in a robust design with a high mounted wing which gives good clearance of the props and engine inlet. The aircraft has an impressive power-to-weight ratio. The design was such that the aircraft needs hardly any ground equipment.

An Antonov A-24T of the Russian Air Force
The qualities of the aircraft led to an impressive list of subvariants, a total of 27 different variants have been designed since the first flight, some examples;
An-24 (4 built) Prototypes
An-24A First production version
An-24B The second production version, with an additional cabin window on each side of the fuselage
An-24T Tactical transport version
An-24V-II An export version of the An24, deliverable in different configurations - 50 seat passenger - Combi passenger / cargo - Full freighter version
Besides the different versions of the An-24 being developed it also served as the basis for the development of other aircraft.
An-26 Tactical transport aircraft
An-30 Photo-mapping and survey aircraft
An-32 Tactical transport aircraft
An-50 1960's project to power the aircraft with 4 jets
The aircraft would be built at 3 different factories, with a total of 1285 airframes being built when the production in the Soviet Union was shut down in 1978.

Three view drawing of the An-24
A variant is still being built in China by the Xi'an Aircraft Industrial Corporation, the reverse-engineered the An-24 and market the aircraft as the Xian Y-7, which has now been upgraded with western engines and avionics and is now marketed as the MA60
Specifications of the Antonov An-24B;
General characteristics
Crew: 3
Capacity: 50 passengers
Length: 23.53 m (77 ft 2 in)
Wingspan: 29.20 m (95 ft 10 in)
Height: 8.32 m (27 ft 4 in)
Wing area: 74.98 m2 (807.1 sq ft)
Empty weight: 13,300 kg (29,321 lb)
Max takeoff weight: 21,000 kg (46,297 lb)
Fuel capacity: 5,550 L (1,470 US gal; 1,220 imp gal)
Powerplant: 2 × Ivchenko AI-24A turboprop engines, 1,900 kW (2,550 shp) each (eshp)
Propellers: 4-bladed AV-72 constant-speed propellers, 3.90 m (12 ft 10 in) diameter
Performance
Cruise speed: 450 km/h (280 mph, 240 kn) at 6,000 m (20,000 ft)
Range: 2,400 km (1,500 mi, 1,300 nmi) with maximum fuel 550 km (340 mi; 300 nmi) with maximum payload
Service ceiling: 8,400 m (27,600 ft)
Rate of climb: 1.91 m/s (375 ft/min)
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