| 词条 | Yakovlev AIR-9 | |||||||||||||||||||
| 释义 |
TheYakovlev AIR-9 / AIR-9bis was a 2-seat sport aircraft designed and built in the USSR during the early 1930s. Design and developmentFrom 1933 Yakovlev and his design team developed a 2-seat low-wing monoplane sport aircraft with open cockpits, wooden wings, welded steel tube fuselage, powered by a Shvetsov M-11 engine. Fitted with landing flaps and automatic leading-edge slats, the AIR-9 design was submitted to a safe aircraft design competition, but was not proceeded with.[1] The original AIR-9 design was re-worked in 1934 to include enclosed cockpits, but dispensing with the automatic slats. The tandem cockpits were fitted with sliding canopies; the forward canopy slid rearwards over the fixed centre canopy section and the rear canopy slid forwards under the centre-section.[1] The structure of the AIR-9 followed Yavovlev's previous designs with wooden plywood and fabric covered wings, welded steel tube fabric-covered fuselage and Duralumin fabric covered tail surfaces. The fixed spatted main undercarriage was supported by struts, later fitted with trousers as well as spats, with a fixed tail-skid or tailwheel (as exhibited at the 1935 Milan airshow).[1] The AIR-9 was powered by a single {{convert|100|hp|abbr=on}} Shvetsov M-11 five-cylinder air-cooled radial driving a fixed pitch 2-bladed wooden propeller, variously fitted with individual exhaust stacks, collector ring and Townend ring cowling.[1] AIR-9bisIn 1935 the AIR-9 was modified, or a second aircraft built, with a forward sloping windshield and re-designated AIR-9bis. The large number of variations in configuration suggest that there were more than one aircraft, but this cannot be confirmed.[1] Operational historyThe AIR-9bis was displayed at the 1935 Paris and Milan airshows, and in 1937, was flown by I.N. Vishnevskaya and Ye.M. Mednikova to set a women's altitude record in the FAI Class C category.[1][7] Variants
Specifications (AIR-9bis){{Aircraft specs|ref=OKB Yakovlev[1], Yakovlev aircraft since 1924[2] |prime units?=met
|cruise speed kmh=195 |stall speed kmh= |stall speed mph= |stall speed kts= |stall speed note= |never exceed speed kmh= |never exceed speed mph= |never exceed speed kts= |never exceed speed note= |range km=695 |combat range km= |combat range miles= |combat range nmi= |combat range note= |ferry range km= |ferry range miles= |ferry range nmi= |ferry range note= |endurance= |ceiling m=6080 |g limits= |roll rate= |glide ratio= |climb rate ms= |climb rate ftmin= |climb rate note= |time to altitude={{convert|1000|m|abbr=on}} in 4 minutes 48 seconds, {{convert|3000|m|abbr=on}} in 16 minutes 24 seconds |lift to drag= |wing loading kg/m2= |wing loading lb/sqft= |wing loading note= |fuel consumption kg/km= |fuel consumption lb/mi= |power/mass= |more performance=
}} References1. ^1 2 3 4 5 6 7 8 9 {{cite book |last=Gordon |first=Yefim |title=OKB Yakovlev |year=2005 |publisher=Midland Publishing |location=Hinkley |isbn=1-85780-203-9 |author2=Dmitry |author3=Sergey Komissarov|pages=30-32 }} {{Yakovlev aircraft}}2. ^1 {{cite book|last1=Gordon|first1=Yefim||last2= Gunston|first2=Bill| title=Yakovlev aircraft since 1924|date=1997|publisher=Putnam|location=London|isbn=0851778720|edition=1. publ.|pages=33-35}} 5 : Soviet sport aircraft 1930–1939|Yakovlev aircraft|Single-engined tractor aircraft|Low-wing aircraft|Aircraft first flown in 1934 |
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