Sunrise
Role One or two-seat sport kitbuilt ultralight
National origin Germany
Manufacturer WD Flugzeug Leichtbau
Designer Wolfgang Dallach
First flight 1986
Produced 5 years
Number built c.39

The Dallach D.2 Sunrise, also known as the WDFL Sunrise after its suppliers, is a single-engine, single-seat cantilever monoplane. It was designed and marketed as a homebuilt aircraft in Germany by Wolfgang Dallach.

Design and development

Wolfgang Dallach's Sunrise, marketed ready-to-fly or in kit form by his WD Flugzeug Leichtbau (WDFL), was his first ultralight design. In Germany, it was the first ultralight equipped with a four-stroke engine. The Sunrise is a tandem two-seater. Both seats are equipped with a throttle lever, rudder and control stick. Full engine control is available only from the rear seat. The fuselage is built from steel tubes and is fabric covered. The wing has a nose made of fiberglass. The main spar is built from CFK. The Sunrise has a fixed tailwheel undercarriage, with the mainwheels hinged from the fuselage on V-form, cross-connected struts. Some Sunrises have wheel fairings.[1]

The Sunrise can be powered by one of several engines in the 28-66 kW (38-90 hp) power range.[2]

Operational history

Sunrise II with KKHD-Engine

About 39 Sunrises are thought to have been built, all flying in Germany.[1] In mid-2010, 19 years after kit production ended, 38 still appeared on the German civil register.[3]

Variants

Data from DAec[2]

Sunrise
Original version, 28 kW (37.5 hp) Citroën KKHD four-stroke engine
Sunrise IIA
47 kW (74.6 hp) Sauer UL 2100 two-stroke engine
Sunrise IIB
66 kW (88.5 hp) BMW UL four-stroke engine
Sunrise IIC
51 kW (68 hp) BMW R1000 four-stroke engine
Sunrise (Verner)
59 kW (79 hp) Verner SVS 1400 engine

Specifications (Citroën KKHD engine)

Data from Airelife's World Aircraft[1]

General characteristics

  • Capacity: one
  • Length: 5.31 m (17 ft 5 in)
  • Wingspan: 13.08 m (42 ft 11 in)
  • Height: 1.42 m (4 ft 8 in)
  • Max takeoff weight: 250 kg (551 lb)
  • Powerplant: 1 × Citroën KKHD , 31 kW (42 hp)
  • Propellers: 2-bladed

Performance

  • Maximum speed: 149 km/h (93 mph, 80 kn)
  • Cruise speed: 120 km/h (75 mph, 65 kn)
  • Range: 255 km (158 mi, 138 nmi)

References

  1. 1 2 3 Simpson, Rod (2001). Airlife's World Aircraft. Shrewsbury: Airlife Publishing Ltd. pp. 168–9. ISBN 1-84037-115-3.
  2. 1 2 DAeC Luftsportgeräte-Büro. "Kennblatt Nr.: 61040 Ausgabe Nr.: 4 vom: 12.01.2004" (PDF). Retrieved 16 December 2011.
  3. ↑ Partington, Dave (2010). European registers handbook 2010. Air Britain (Historians) Ltd. ISBN 978-0-85130-425-0.


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