| 词条 | Thomas-Morse R-5 | |||||||||||||||||
| 释义 |
The Thomas-Morse R-5 also known as the TM-22 was an American single-engined parasol monoplane racing aircraft of the 1920s. Two were built for the United States Army Air Service in 1922, but after competing in the 1922 Pulitzer Trophy Race the type was abandoned. Design and developmentIn early 1922, the United States Army Air Service placed orders with a number of American manufacturers for Racing aircraft to compete in the prestigious Pulitzer Trophy Race. Amongst the companies who received orders was Thomas-Morse Aircraft of Ithaca, New York, whose chief designer, B Douglas Thomas, designed a single-seat, single-engined parasol wing monoplane, the Thomas Morse TM-22, with two being ordered by the Army as the Thomas-Morse R-5.[1][2] The TM-22, which was based on Thomas's unsuccessful MB-9 fighter and MB-10 training aircraft, which had both flown in 1921 but had been quickly abandoned.[1] It was of all-metal construction, with corrugated duralumin skinning over a duralumin structure, while its wing featured a distinct hump in the centre above the fuselage.[3][5] The two prototypes had different wings, with the first prototype having a span of 29 ft 0 in (8.84 m) and a wing area of 174 sq ft (16.2 m²), while the second had a span of 25 ft (7.62 m) and an area of 150 sq dt (13.9 m²). It was powered by a single 600 hp (447 kW) Packard 1A-2025 V12 engine with its radiator and oil tank in a tubular container beneath the fuselage. The aircraft had a fixed conventional landing gear.[1] Operational historyThe two aircraft were delivered to Selfridge Field, Michigan in September 1922, with the first prototype making its maiden flight there on 29 September.[1] The aircraft suffered cooling problems and had poor handling, while struggling to reach the speed of 190 mph expected by the Air Service.[1][5] Despite these problems, the two R-5s, flown by Captain Frank O'Driscoll Hunter and Lieutenant Clayton L. Bissell were amongst the starters for the Pulitzer Race on 14 October. Bissell finished tenth at an average speed of 155.5 mph (250.4 km/h), while Hunter finish eleventh, at a speed of 149.3 mph (240.4 km/h),[1] the last two aircraft to complete the race.[5] Both aircraft were sent to McCook Field, Dayton, Ohio for further testing in 1923, and were destroyed during static structural testing.[1] Specifications{{Aircraft specs|ref=The American Fighter[4] |prime units?=imp |genhide= |crew=1 |capacity= |length m= |length ft=19 |length in=10 |length note= |span m= |span ft=29 |span in=0 |span note= |height m= |height ft=8 |height in=6 |height note= |wing area sqm= |wing area sqft=174 |wing area note= |aspect ratio= |airfoil= |empty weight kg= |empty weight lb= |empty weight note= |gross weight kg= |gross weight lb=2850 |gross weight note= |max takeoff weight kg= |max takeoff weight lb= |max takeoff weight note= |fuel capacity= |more general= |eng1 number=1 |eng1 name=Packard 1A-2025 |eng1 type=liquid-cooled V12 engine |eng1 kw= |eng1 hp=600 |eng1 note= |power original= |perfhide= |max speed kmh= |max speed mph=188 |max speed kts= |max speed note= |range km= |range miles= |range nmi= |range note= |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= |ceiling ft= |ceiling note= |g limits= |roll rate= |glide ratio= |climb rate ms= |climb rate ftmin= |climb rate note= |time to altitude= |power/mass= |thrust/weight= |more performance= |avionics= }} See also{{Portal|Aviation}}{{aircontent|see also= |related= |similar aircraft=
|lists=
}} References{{commons category|Thomas-Morse R-5}}
1. ^1 2 3 4 5 6 Wegg 1990, p. 27. 2. ^Angelucci and Bowers 1987, pp. 423–424. 3. ^Flight 19 October 1922, p. 605. 4. ^1 2 3 Angelucci and Bowers 1987, p. 424.
5 : United States sport aircraft 1920–1929|Thomas-Morse aircraft|Parasol-wing aircraft|Single-engined tractor aircraft|Aircraft first flown in 1922 |
|||||||||||||||||
| 随便看 |
|
开放百科全书收录14589846条英语、德语、日语等多语种百科知识，基本涵盖了大多数领域的百科知识，是一部内容自由、开放的电子版国际百科全书。