The Rondone was created to satisfy the demand for a more contemporary touring aircraft from Italian private pilots and aero clubs. 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.[2]
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.[1]
F.4 Rondone I two-seater at Milan Linate airport in 1965
Operational historyedit
The 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.
Three-seater with a 90 hp (67 kW) Continental C90 or 135 hp (101 kW) Lycoming O-290-D2 engine.[4][5] 10 built from new plus one converted from a F.4. Some were later fitted with a 100 hp (75 kW) Continental O-200 engine.[4]
Specifications (F.7 Rondone II with Lycoming engine)edit
Data from Jane's All the World's Aircraft 1956-57[5]
ambrosini, rondone, italian, designed, three, seat, light, touring, monoplane, early, 1950s, rondone, aircraft, rally, schaffen, diest, airfield, belgium, august, 2009, role, light, touring, monoplane, national, origin, italy, manufacturer, ambrosini, designer. The Ambrosini Rondone is an Italian designed two three seat light touring monoplane of the early 1950s Ambrosini Rondone F 7 Rondone II at an aircraft rally at Schaffen Diest airfield Belgium in August 2009 Role Light touring monoplane National origin Italy Manufacturer SAI Ambrosini Designer Ing Stelio Frati First flight 1951 Introduction 1951 Status Still in service Number built 20 Contents 1 Development 2 Operational history 3 Variants 4 Specifications F 7 Rondone II with Lycoming engine 5 ReferencesDevelopment editThe Rondone was created to satisfy the demand for a more contemporary touring aircraft from Italian private pilots and aero clubs 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 2 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 1 nbsp F 4 Rondone I two seater at Milan Linate airport in 1965Operational history editThe 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 Variants editF 4 Rondone I prototype Two seater with a 65 hp 48 kW Walter Mikron III 1 built 3 F 4 Rondone I production aircraft Two seater with an 85 hp 63 kW Continental C 85 or 90 hp 67 kW Continental C 90 10 built 3 F 7 Rondone II Three seater with a 90 hp 67 kW Continental C90 or 135 hp 101 kW Lycoming O 290 D2 engine 4 5 10 built from new plus one converted from a F 4 Some were later fitted with a 100 hp 75 kW Continental O 200 engine 4 Specifications F 7 Rondone II with Lycoming engine editData from Jane s All the World s Aircraft 1956 57 5 General characteristicsCrew 1 Capacity 3 passengers Lycoming engine Length 6 80 m 22 ft 4 in Wingspan 9 30 m 30 ft 6 in Height 2 26 m 7 ft 5 in 2 Wing area 10 6 m2 114 sq ft Aspect ratio 6 6 Empty weight 530 kg 1 168 lb Gross weight 900 kg 1 984 lb Fuel capacity 142 L 37 5 US gal 31 2 imp gal in three fuselage tanks Powerplant 1 Lycoming O 290 D2 4 cylinder air cooled horizontally opposed piston engine 101 kW 135 hp Propellers 2 bladed fixed pitch propeller Performance Maximum speed 265 km h 165 mph 143 kn Cruise speed 233 km h 145 mph 126 kn 2 Stall speed 75 km h 47 mph 40 kn Range 700 km 430 mi 380 nmi Service ceiling 4 500 m 14 800 ft Rate of climb 4 3 m s 850 ft min 2 Wing loading 68 kg m2 14 lb sq ft Power mass 0 0786 kW kg 0 0478 hp lb Take off run 130 m 427 ft Landing run 100 m 328 ft References edit nbsp Wikimedia Commons has media related to Ambrosini Rondone a b Green 1965 p 84 a b c d e Simpson 2001 p 38 a b Archive 1982 p 67 a b Archive 1982 p 69 a b Bridgman 1956 p 171 Bibliography Aircraft of European Civil Registers 3 The designs of Stelio Frati Archive No 3 Air Britain 1982 pp 67 74 ISSN 0262 4923 Bridgman Leonard ed 1956 Jane s All the World s Aircraft 1956 57 London Sampson Low Marston amp Company Ltd Green William 1955 The Aircraft of the World Macdonald and Co Publishers Ltd Simpson Rod 2001 Airlife s World Aircraft Airlife Publishing Ltd ISBN 1 84037 115 3 Portals nbsp Italy nbsp Companies nbsp Aviation Retrieved from https en wikipedia org w index php title Ambrosini Rondone amp oldid 1160292300, wikipedia, wiki, book, books, library,
