Dornier Do Y

Do Y

A Dornier Do Y of the Royal Yugoslav Air Force
Role	Bomber
National origin	Germany
Manufacturer	Dornier Flugzeugwerke
First flight	March 1930
Primary user	Royal Yugoslav Air Force
Number built	4

The Dornier Do Y was a German bomber of the 1930s, the second bomber design by Dornier Flugzeugwerke.

Development

Design on the aircraft began in 1930, to follow up from the other bomber prototype of Dornier, the Dornier Do P. and the first aircraft flew in March 1930. It was a shoulder-wing monoplane of all-metal construction with fixed tailwheel landing gear, similar to the Do P, however this model had three engines instead of four. A civil transport version was proposed as the Dornier Do U, but this was never produced.

Operational history

The Do P and Do Y were displayed in the early '30s as freighter prototypes; they were in fact evolutionary steps towards creating the Luftwaffe's first operational bomber, the Dornier Do 11a. Two examples were produced for the Royal Yugoslav Air Force in 1931, followed by two more machines six years later. All four served with the 81st regiment at Mostar-Ortijes until replaced by the Savoia-Marchetti SM.79 in 1939. The aircraft were then relegated to transport and liaison roles until all four were captured by German forces at Kraljevo in 1941. One of them was subsequently handed over to the Air Force of the Independent State of Croatia.

Fast passenger plane Do 15

In 1932 Dornier worked on two planes with the Wnr. 243 and 244. They originally were ordered by Yugoslavia, but then cancelled. These planes were part of the Do K and Do Y projects. On a request for tender by Deutsche Luft Hansa and the Reich Air Ministry for a fast passenger plane - which in fact should be able to get a fast bomber. Dornier offered the design with the new naming Dornier Do 15. The same request lead to the superior designs Heinkel He 111 and Junkers Ju 86. This caused Dornier to develop a new design, the Dornier Do 17.^[1]^[2]

Operators

Kingdom of Yugoslavia

Royal Yugoslav Air Force

Specifications

General characteristics

Crew: 4
Length: 18.20 m (59 ft 9 in)
Wingspan: 28.00 m (91 ft 10 in)
Height: 6.79+ m (22 ft 3 in)
Wing area: 111.0 m² (1,194 ft²)
Empty weight: 6,360 kg (13,990 lb)
Gross weight: 8,500 kg (18,700 lb)
Powerplant: 3 × Bristol Jupiter radial engines, 373 kW (500 hp) each

Performance

Maximum speed: 250 km/h (160 mph)
Range: 1,500 km (940 miles)
Service ceiling: 6,000 m (19,700 ft)
Rate of climb: 2.7 m/s (520 ft/min)

Armament

2 × trainable machine guns in open position in nose
2 × trainable machine guns in open dorsal position
12 × 100 kg (220 lb) bombs

References

Wikimedia Commons has media related to Dornier Y.

↑ (German)Heinz J.Nowarra: "Die deutsche Luftrüstung 1933-1945", Bernard & Graefe Verlag, Koblenz 1993, ISBN 3-7637-5464-4
↑ (German)Flugzeug Classic Spezial 4 vom Geramond Verlag, München 2009

World Aircraft Information Files. Brightstar Publishing, London. File 892 Sheet 26
German Aircraft between 1919-1945

Dornier and Zeppelin-Lindau aircraft

Zeppelin-Lindau 1914-1919	Rs.I Rs.II Rs.III Rs.IV C.I C.II CS.I CL.II D.I V1

Dornier designations 1919-1933	Do A Do B Do C Do D Do E Do F Do G Do H Do J Do K Do L Do N Do O Do P Do Q Do R Do S Do T Do U Do V Do X Do Y Delphin Komet Libelle Merkur Spatz Wal

RLM designations 1933-1945	Do 10 Do 11 Do 12 Do 13 Do 14 Do 15 Do 16 Do 17 Do 18 Do 19 Do 20 Do 22 Do 23 Do 24 Do 25 Do 26 Do 29 Do 212 Do 214 Do 215 Do 216 Do 217 Do 317 Do 318 Do 335 Do 417 Do 435 Do 635 P.59 P.85 P.174 P.184 P.192 P.231 P.232 P.238 P.247 P.252 P.254 P.256 P.273 P.1075

Dornier designations post-1945	Do 24 Do 25 Do 27 Do 28 Do 29 Do 31 Do 32 Do 34 Do 128 Do 132 Do 228 Do 231 328 328JET 428 528 728JET 928JET Aerodyne Alpha Jet Projekt 621 Seastar S-Ray 007

See also Claudius Dornier and Dornier Museum Friedrichshafen

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