It is the Dzialowskich DKD-I (Roman numerals it seems)
Engine Haake (misspelt Reply to LM's comment about challenge aircraft), Year First Flight 1926 (generally speaking quite striking) and country as Karlark pointed out
Stanislav and Brothers Myachislav Dzialovskich after winning his glider "Bydgoszczanka" on the next contest in Gdynia, the summer of 1925 started to build its first aircraft. They were very inspired the relative success of the brothers Gabriel. Stanislav Dzialkovich, who was 9 years old aircraft designer spent repairing and maintaining aircraft, and five years as chief of the flight park in summer school Budgosche. The construction of the aircraft was made ??possible by using a local philanthropist John Krieger, who with his own money bought a German engine Haacke. It was under the engine and built the plane, received the name DKD-I . The fuselage was placed in the courtyard of the designers in Budgosche. A construction of the wings and final assembly - in flight school. The aircraft without an engine weighed just 158 kg, and its cost amounted to PLN 2400. DKD-I aircraft was flight tested February 1, 1926 Sergeant Muslevskim. plane was considered quite successful, but the pilot shortage as called bad view from the cockpit. After the necessary modifications November 20, 1926 the aircraft took off designer himself. And the plane that was originally conceived as a double was used exclusively as a single. A May 25-27 Dzialovskich made its first flight in Poland coach a sport aircraft - from Budgoschi he flew to Warsaw in Torun (total flight time 2 hours 10 minutes). In Warsaw, the aircraft proved influential people, but during the return flight the plane was broken. On the return flight to Krakow it was renamed the DKD-III.
Karlark has requested an Open House
Last edited by SincoTC; 27th Oct 2011 at 15:38.
Reason: Corrected typo
So sorry to hear about Reg. We shared a lot of e-mails together trying to crack AviaQuiz. For a guy who only owned one book on aircraft, he did remarkably well in all challenges and outfoxed me many times. He had a dry wit and a black sense of humour. For the DC-3 tailwheel on AviaQuiz he spotted it straight away but kept me guessing. When I asked him why he did that he replied "I didn't want to spoil your fun mate!"
It was always about the fun. Every e-mail he sent ended with, "Are we still having fun?" I've sent my condolences to his wife/partner (thanks for the address David) and one to Reg....just in case....
In honour of Reg and his only book, The Observer's Book of Aircraft 1961, here's one from it...