| 词条 | Ambrosini Rondone | |||||||||||||||
| 释义 |
The Ambrosini Rondone is an Italian-designed two/three-seat light touring monoplane of the early 1950s. DevelopmentThe Rondone was designed to meet the needs of Italian private pilots and aero clubs for a more modern touring aircraft. Stelio Frati prepared the basic design for the prototype two-seat F.4 Rondone I[1] which was built by CVV in 1951. This was followed by nine production examples produced by SAI Ambrosini in collaboration with Aeronautica Lombardi.[2] The three-seat F.7 Rondone II first flew on 10 February 1954 and the prototype and nine production examples were built for Ambrosini by Legnami Pasotti.[3] The Rondone is of conventional wooden construction with a plywood-covered one-piece single spar wing and a monocoque fuselage. The tricycle undercarriage is retractable. Two-position flaps and dual controls are fitted. The Rondone II has an extended cabin with additional rear side windows.[4] Operational historyThe Rondone was initially mainly sold to individuals and clubs in Italy, but examples later served in France and Germany. Several were still operational in 2009, including the German aircraft. Variants(per Green 1965 and Simpson 2005)
Two-seater with a {{convert|65|hp|kW|0|abbr=on}} Walter Mikron III. 1 built
Two-seater with a {{convert|85|hp|kW|0|abbr=on}} Continental. 9 built.
Three-seater with a {{convert|90|hp|kW|0|abbr=on}} Continental C90-12F engine. 10 built. Some were later fitted with a {{convert|135|hp|kW|0|abbr=on}} Lycoming O-290-D2 engine. Specifications (F.7 Rondone II with Lycoming engine){{aerospecs|ref=Simpson, 2001 |met or eng?=eng |crew=one |capacity=two passengers |length m=6.81 |length ft=22 |length in=4 |span m=9.30 |span ft=30 |span in=6 |swept m= |swept ft= |swept in= |rot number= |rot dia m= |rot dia ft= |rot dia in= |dia m= |dia ft= |dia in= |width m= |width ft= |width in= |height m=2.26 |height ft=7 |height in=5 |wing area sqm=10.60 |wing area sqft=114 |swept area sqm= |swept area sqft= |rot area sqm= |rot area sqft= |volume m3= |volume ft3= |aspect ratio= |wing profile= |empty weight kg=528 |empty weight lb=1,164 |gross weight kg=898 |gross weight lb=1,980 |lift kg= |lift lb= |eng1 number=1 |eng1 type=Lycoming O-290-D2 |eng1 kw=101 |eng1 hp=135 |eng1 kn= |eng1 lbf= |eng1 kn-ab= |eng1 lbf-ab= |eng2 number= |eng2 type= |eng2 kw= |eng2 hp= |eng2 kn= |eng2 lbf= |eng2 kn-ab= |eng2 lbf-ab= |max speed kmh=267 |max speed mph=165 |max speed mach= |cruise speed kmh=235 |cruise speed mph=145 |stall speed kmh= |stall speed mph= |range km=705 |range miles=435 |endurance h= |endurance min= |ceiling m=3800 |ceiling ft=12,460 |g limits= |roll rate= |glide ratio= |climb rate ms=4.32 |climb rate ftmin=850 |sink rate ms= |sink rate ftmin= }} References{{commons category|Ambrosini Rondone}}
1. ^Green, 1965, p. 84 2. ^Simpson, 2001, p. 38 3. ^Simpson, 2001, p. 38 4. ^Green, 1965, p. 84
4 : Italian civil utility aircraft 1950–1959|Low-wing aircraft|Single-engined tractor aircraft|Aircraft first flown in 1951 |
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