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F.4 Rondone
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Ambrosini F.4 Rondone with Walter Mikron engine

F.4 with Continental engine
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F.4 Rondone
| Powered by |
65 hp Walter Mikron |
90 hp Continental C90 |
| Wing span |
28' 2-1/2" |
28' 2-1/2" |
| Length |
20' 2" |
20' 2" |
| Wing area |
114 sq ft |
114 sq ft |
| Gross weight |
1212 lbs |
1322 lbs |
| Empty weight |
749 lbs |
869 lbs |
| Accommodation |
2 seats |
2 seats |
| Maximum speed |
139 mph |
155 mph |
| Cruise speed |
124 mph |
139 mph |
| Stall speed |
46.5 mph |
49.5 mph |
| Service ceiling |
14,760 ft |
16,400 ft |
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169 mph on 90 hp. The world speed record holder in the 1950's.
