Kawasaki Ka 87
The Dornier Do N was a twin-engined military ground plane, which was constructed in 1926 by the Dornier GmbH in Friedrichshafen and metal structures built under license in Japan at the Kawasaki Dockyard Company in Kobe with the designation Type 87 (Ka 87). The first flight took place on February 19, 1926; 28 aircraft were built in total. A small team of employees Dornier Claude Dornier and at times even had this in Japan.
History
Beginning of 1924, plans for a country version of the successful "Whale " concept at Dornier. Were Envisioned a civilian ( Th F ) and a military version (Thu N). It arose from the Wal- cell a significantly larger and heavier aircraft which, although in the basic design of the Wal leaning, but was re- constructed by yet in many details. Thus, cross- level, gekielter boat bottom and Flossenstummeln the whale and removed a country chassis provided. Compared to the whale, the curb mass increased from 3.5 t to 4.2 to 4.3 t.
The drive was either two Rolls- Royce Condor III twelve-cylinder V-engines or two Napier Lion twelve-cylinder V W engines. Alternatively still, later joined the BMW VI. Dornier worked on the civil design ( serial number 60) appears first, causing the lower type letter " F" could be explained. During the year 1924 should then be taken forward at this machine as Do N at the insistence of Japan after the fastest possible acquisition of a two -engined bomber, the works. After Japan, supplied the necessary raw materials for the construction, profiles and other items, the engines would procure Kawasaki itself. Dornier also provided instruction period - and consultant staff ready Dornier even offering advice and in addition has lectured at the University on the all-metal aircraft. 1925, the parts were shipped to Japan where the machine and completed in February 1926 made its first flight. After a short flight test after three days the aircraft was removed from the Japanese side. For the Japanese Army Air Force followed by a further 27 copies were manufactured with built in Japanese license BMW VI engines.
In Germany Dornier had in the meantime the Th F again heavily revised, resulting in dimensions and weight compared to the whale clearly increased again. The two-part room should provide space for 18 passengers. In order to operate the machine in the German air traffic, Dornier filed in August 1925, an application for classification of Th F as a civil aircraft at the Inter-Allied Aviation Guarantee Committee ( ILGK ). On September 29, 1925, the ILGK rejected this request, however, and classified the Th F as a military aircraft. The construction works were still continued. Overall, the construction of six copies was planned, but reached only a machine before cessation of work is a significant stage of construction. Reasons for the termination are not known.
Construction
The structure had as opposed to fabric covering of the whale, a dural planking. The main landing gear consisted of two large independently suspended wheels, which had a then-common rubber suspension. The two engines were mounted in tandem on the wing and had a large four-bladed propeller.
The all-metal fuselage had a front MG Bugstand, according to the flight deck followed the tank room with the fuel tanks. On top of the fuselage was located behind another MG mount. An original still provided on the hull bottom floor stand was probably not realized. The bomb load of 500 to 1000 kg was kept on the outside.