Bartini DAR
Bartini DAR | |
---|---|
![]() |
|
Type: | Flying boat |
Design country: | |
Manufacturer: | |
First flight: |
Spring 1936 |
Number of pieces: |
1 |
The Bartini DAR ( Russian Бартини ДАР ) was a Soviet flying boat from the 1930s. DAR stands for Dalni Arktitscheski Raswedtschik (Дальний Арктический разведчик), arctic long-range reconnaissance aircraft.
history
In 1934 Robert Lyudwigowitsch Bartini was assigned to the ZOK design office in the Research Institute of the Civil Air Fleet ( NII GWF ) to design the DAR. The DAR, made entirely of Enersch-6 stainless steel, was similar to the Dornier Wal .
The DAR had a fuselage with a high aspect ratio, floats on either side of the fuselage, fuselage wing struts and two engines in tandem in a single nacelle in the center above the wing. Initially, Bartini tended to separate the two motors and run the propellers in a tubular casing, similar to a modern ducted propeller . Tests at ZAGI (Zentralny Aerogidrodinamitscheski Institut - Zentrales Aerohydrodynamisches Institut ) confirmed Bartini's theories, but the prototype was built with a conventional tandem engine nacelle with push and pull propellers.
Apart from the 'Enersch-6' stainless steel , the DAR had a few other innovations, including slotted flaps and slats over the entire span as well as ailerons split into two sections. In later tests, steel skis with rubber suspensions were attached to the sides of the fuselage.
Flight tests were carried out at the small boat harbor in Leningrad in the spring of 1936, with no major problems, which is why five more DARs were ordered but then not produced.
Technical data (Bartini DAR)
Parameter | Data |
---|---|
crew | 3 + |
Empty mass | 4820 kg |
Takeoff mass | 7200 kg |
Engine | 2 × Hispano-Suiza 12YBRShp with 860 PS (633 kW) each |
Top speed | 240 km / h |
Cruising speed | 229 km / h |
Range | 2000 km |
Flight duration | 20 h |
literature
- Bill Gunston: The Osprey Encyclopaedia of Russian Aircraft 1875-1995 . Osprey, London 1995, ISBN 1-85532-405-9 .
- Jefim Gordon , Sergei Komissarow: Unflown Wings: Soviet / Russian unrealized aircraft projects 1925-2010 . Ian Allen, ISBN 978-1-906537-34-0 , pp. 444-446 .
Web links
- [1]
- History and Dates (Russian)
Individual evidence
- ^ Bill Gunston: Encyclopaedia of Russian Aircraft 1875-1995 , London: Osprey 1995, ISBN 1-85532-405-9