Dornier Do 212

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Do 212
Role Flying boat
National origin Switzerland/Germany
Manufacturer Dornier Flugzeugwerke
First flight August 1942
Number built 1

The Dornier Do 212 was a four-seat experimental

Altenrhein on Lake Constance. Design was initiated in 1938 by the German and Swiss branches, the latter being responsible for the actual construction of the prototype
.

The Do 212 was an all-metal cantilever monoplane with fixed wingtip floats and a 343 kW (460 hp) Hirth HM 512-B-0 12-cylinder air-cooled engine which, mounted aft of the cabin, was buried in the fuselage and drove a four-blade airscrew aft of the tail by means of a shaft which could be tilted upward 12° to provide water clearance.

Initial water taxiing trials resulted in the enlarging of the wingtip floats. On 3 August 1942, a few attempts to take off from water were made, but these failed. A Do 24 was used to tow the Do 212 and it finally flew; however, instability forced the pilot to ditch just after takeoff. Further trials ended the same way. Difficulties were also experienced with the extension shaft, and the cooling of the engine presented a problem. Consequently, no further testing was undertaken, and the prototype was scrapped in 1943.

Specifications (Do 212)

Data from [1]

General characteristics

  • Crew: one
  • Capacity: three
  • Length: 10.15 m (33 ft 4 in)
  • Wingspan: 10.3 m (33 ft 10 in)
  • Height: 4.4 m (14 ft 5 in)
  • Wing area: 23.1 m2 (249 sq ft)
  • Empty weight: 1,850 kg (4,079 lb)
  • Gross weight: 2,370 kg (5,225 lb)
  • Fuel capacity: fuel - 250 L (55 imp gal) , oil - 30 L (7 imp gal)
Stabiliser Span
6.52 m (21 ft) with 8° 30' dihedral
  • Powerplant: 1 ×
    Hirth HM 512B-0
    inverted 60° V-12 air-cooled piston engine, 330.9 kW (443.8 hp)
  • Propellers: 4-bladed
    Escher-Wyss
    , 2.40 m (7 ft 10 in) diameter driven via a 2.9 m (10 ft) extension shaft raised 12° for take-off and landing.

Performance

  • Maximum speed: 293 km/h (182 mph, 158 kn) (estimated)
  • Cruise speed: 240 km/h (150 mph, 130 kn)
  • Range: 650 km (400 mi, 350 nmi) (estimated)
  • Service ceiling: 5,700 m (18,700 ft) (estimated)
  • Rate of climb: 0.476 m/s (93.7 ft/min) (estimated)
  • Time to altitude:
    • 1,000 m (3,281 ft) in 35 minutes (estimated)
    • 3,000 m (9,843 ft) in 105 minutes (estimated)

References

  1. ^ "Dornier_Do_212". Germany. Retrieved 25 February 2012.

External links