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The Do.35 was first mooted as a successor to the earlier Do.25 general purpose amphibian in 1942 though it was not accorded significant priority by the Dornier firm. Serious work commenced late in 1946 and a prototype was first flown in late 1948. The first aircraft were delivered to the Deutsche Gesellschaft zur Rettung Schiffbrüchiger, Germany’s civil maritime search and rescue service, in March 1949.

Technical Description

Gull-wing monoplane. Centre-section and detachable outer sections. Metal structure consists of a box spar; elementary rib structure and all metal skin plating. Hydraulic-operated split trailing edge flaps from hull to ailerons.

Two-step metal hull. Rectangular section tapering towards the rear of the hull. Six watertight bulkheads.

Cantilever monoplane type tail unit with single fin and rudder. Tailplane has a single spar and the entire unit, including the movable surfaces, is covered with a metal skin.

Retractable undercarriage with main units located inside the hull and retractable tail unit with centring lock. Wing pontoons for stabilisation for water landings or take-offs.

Two Hirth HM-508H eight-cylinder inverted Vee inline engines each rated at 340 hp in pusher configuration driving controllable pitch airscrews.

Mooring compartment in the nose with stowage for anchor and marine gear. Pilot’s compartment seats two side-by-side with dual controls. Rear compartment seats up to three with separate seats but can be configured according to role.

General characteristics

Length: 10.80 metres
Wingspan: 13.53 metres
Height: 3.83 metres
Wing area: 25.10 square metres
Empty weight: 2,110 kilograms
Gross weight: 2,995 kilograms

Performance

Maximum speed: 335 kph
Range: 1,450 km
Service ceiling: 7,800 metres