1940 Doflug Bu-133C Jungmeister HB-MKM (sn 36) This Jungmeister was manufactured under licence for the Swiss Air Force by Dornier Photo taken Aug. 2009 Kestenholz Oldtimer Airshow (Oldtimerflugtage), Switzerland Photo Copyright Marcel Siegenthaler

The Bücker Bü 133 Jungmeister (Young master) was an advanced trainer of the Luftwaffe in the 1930s. It was a single-engine, single-seat biplane of wood and tubular steel construction and covered in fabric.

Development

The Bü 133 was a development of the Bücker Bü 131 Jungmann two-seat basic trainer. It was slightly smaller and fitted with a more powerful engine, which gave it excellent aerobatic performance.

Operational history

The Bü 133 served as an advanced trainer with the Luftwaffe, its aerobatic capability suiting it particularly for early training of fighter pilots.

It was manufactured under licence for the Swiss Air Force by Dornier and for the Spanish air force by CASA. Approximately 50 aircraft were produced for each country.

Variants

Bücker Bü 133A: Hirth HM 6 inline engine: 135-hp (101-kW)
Bücker Bü 133B: applied to licence-built aircraft (only two versions were ever constructed of this variant).
Bücker Bü 133C: Siemens Sh 14A-4 engine

Operators

Independent State of Croatia
- Zrakoplovstvo Nezavisne Države Hrvatske

Germany
- Luftwaffe

Spanish State
- Spanish Air Force

Switzerland
- Swiss Air Force

Specifications (Bücker Bü 133C)

General characteristics
Crew: one, pilot
Length: 6.0 m (19 ft 8.25 in)
Wingspan: 6.60 m (21 ft 7.75 in)
Height: 2.20 m (7 ft 2.5 in)
Wing area: 12.0 m² (129.17 ft²)
Empty weight: 425 kg (937 lb)
Max takeoff weight: 585 kg (1,290 lb)
Powerplant: 1× Siemens Sh 14A-4 radial piston engine, 119 kW (160 hp)

Performance
Maximum speed: 220 km/h (137 mph)
Cruise speed: 200km/h (124mph)
Range: 500 km (311 mi)
Service ceiling: 4,500 m (14,765 ft)