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/ Avia B-33
Avia B-33
In 1951, the Czechoslovak firm Avia secured a license to make Il-10s, with the designation B-33.
The first aircraft flew on 26 December 1951.
Initially, their engines were Soviet-built.
From 1952 onwards the engines were also produced in Czechoslovakia as the M-42.
Besides the combat variant, a Czechoslovak trainer variant also entered service under the designation CB-33.
In total, 1,200 B-33s were built by 1956.
The Avia B-33, became a basic ground attack plane of the Warsaw Pact countries.
The Polish Air Force used 281 B-33s.
In Poland, the B-33 was modified to carry 400 l fuel tanks under its wings.
From 1950 to 1960, Czechoslovakia used 600 B-33s.
From 1949 to 1956, the Hungarian Air Force used B-33s.
From 1950 to 1960, the Romanian Air Force used 156 B-33s.
Bulgaria also used these aircraft.
Variants
Avia B-33
Licensed built variant of the initial Il-10
Avia BS-33
Licensed built two-seat operational trainer.
Specifications
Crew
2
Length
11.06 m (36 ft 3 in)
Wingspan
11.06 m (36 ft 3 in)
Height
4.18 m (13 ft 9 in) (tail up)
Wing area
30.00 m2 (322.9 sq ft)
Empty weight
4,680 kg (10,318 lb)
Gross weight
6,335 kg (13,966 lb)
Max take-off weight
6,535 kg (14,407 lb)
Fuel capacity
747 L (164 imp gal; 197 US gal)
Powerplant
1 × Mikulin AM-42 liquid-cooled V12 engine,
1,320 kW (1,770 hp)
(Maximum continuous power, 2,350 rpm)
Propellers
3 bladed AV-5L-24, 3.60 m (11 ft 10 in) diameter
Performance
Maximum speed
551 km/h (342 mph, 298 kn) at 2,800 m (9,200 ft);
507 km/h (274 kn; 315 mph) at sea level
Cruise speed
310 km/h (190 mph, 170 kn) at 500 m (1,600 ft)
Range
800 km (500 mi, 430 nmi) at 500 m (1,600 ft)
Service ceiling
5,500 m (18,000 ft)
Time to altitude
5 minutes to 3,000 m (9,800 ft)
Armament
Guns
4x 23 mm NS-23 (150 rpg) in wing.
1× 20 mm Berezin B-20 cannon (150 rpg)
Or
12,7 mm UBT machine gun (150 rpg) in rear turret.
Rockets
4× RS-82
Or
RS-132 rockets
Bombs
6× 50 kg (110 lb) bombs
Or
4× 100 kg (220 lb) bombs
Or
2× 250 kg (550 lb) bombs
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