Between 1929 and 1934, there were a number of altitude records established by rival machines including a Junkers W.34, a Vickers Vespa and a Caproni Ca.113 biplane, as well as the first flight over Everest by a pair of Westland Wallaces in 1933; all these aircraft used Bristol or Bristol-designed engines.
The first season the route was flown using a single-engine Junkers W 34.
Junkers W 34, single-engine light transport+reconnaissance (development of W33), 1933.
Junkers W 34, single-engine light transport+reconnaissance (development of W33), 1933
Det Norske Luftfartsselskap (DNL) had exclusive rights for the route and initially flew it using a Junkers W 34 with floats called "Ternen".
3 May 1934: a Syndicato Condor Junkers W-34 registration PP-CAR crashed during landing procedures at Rio de Janeiro-Santos Dumont.
Junkers W 34, a German-built, single-engine, passenger- and transport aircraft
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