| 词条 | Rotondi R-1 Gheppio | |||||||||
| 释义 |
The Rotondi R-1 Gheppio ({{lang-en|Kestrel}}) was a lightweight, single seat Italian glider. It featured a relatively short wingspan (ten meters). One example was built in the early 1950s. DevelopmentThe Ghoppia was a cantilever mid-wing monoplane. Its straight tapered wing was built in one piece for lightness around a single spar and had marked dihedral. The outer half of the wing's trailing edge carried ailerons mounted on a false spar; trailing edge airbrakes occupied the inner portion of the wingspan. These airbrakes turned out to be rather ineffective. The wing terminated in small tip bodies.[2] The fuselage was built in two sections that bolted together. It was ovoid in cross-section, tapering aft to a conventional but integral tail. The fin was straight edged with a rounded tip and a small fillet at its base. Its rudder extended down to the keel. The tailplane was mounted on the fin near the top of the fillet, carrying elevators that had a large cut-out for rudder movement. The Ghoppia's cockpit was over the wing, under a rather prominent canopy which opened by sliding rearwards. This had perspex transparencies forwards and to the sides but was opaque rearwards and above. A skid, reaching aft to about mid-chord, and a tail bumper formed the undercarriage.[2] Partly due to the single-piece wing, the Ghoppia was unusually light with an empty weight of only {{convert|80|kg|lb|abbr=on|0}}. Operational historyThe Ghoppia was first flown from Bresso, then later from Linate, sometimes launched by aerotow. The sole example was lost in an out-landing accident during a competition organised by the aeroclub of Milan.[2] Specifications{{Aircraft specs|ref=Pedrielli (2011) p. 221 |prime units?=met |capacity=One |length m=5.50 |span m=10.0 |height m= |height ft= |height in= |wing area sqm=8.0 |aspect ratio=12.5 |airfoil= |empty weight kg=80 |gross weight kg=160 |max takeoff weight kg= |max takeoff weight lb= |max takeoff weight note= |max speed kmh= |max speed mph= |max speed kts= |max speed note= |cruise speed kmh= |cruise speed mph= |cruise speed kts= |cruise speed note= |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= |g limits= |glide ratio=estimated, 23:1 |sink rate ms= |sink rate ftmin= |lift to drag= |wing loading kg/m2=20.0 |wing loading note= }} References1. ^1 2 3 {{cite web|url=http://www.scalesoaring.co.uk/VINTAGE/Documentation/Gheppio/R1_Gheppio.pdf|title=R1 Gheppio|accessdate=4 November 2013}} [1]}} 1 : Italian sailplanes 1950–1959 |
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