Rotondi R-1 Gheppio
| R-1 Gheppio | |
|---|---|
| Role | Single seat glider |
| National origin | Italy |
| Designer | Gianfranco Rotondi |
| First flight | 1952 |
| Status | Sole example destroyed |
| Number built | 1 |
The Rotondi R-1 Gheppio (English: Kestrel) was a lightweight, single seat Italian glider. It featured a relatively short wingspan (ten meters). One example was built in the early 1950s.
Development
[edit]The 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.[1][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.[1][2]
Partly due to the single-piece wing, the Ghoppia was unusually light with an empty weight of only 80 kg (176 lb).[1]
Operational history
[edit]The 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.[1][2]
Specifications
[edit]Data from Pedrielli (2011) p. 221[1]
General characteristics
- Capacity: One
- Length: 5.50 m (18 ft 1 in)
- Wingspan: 10.0 m (32 ft 10 in)
- Wing area: 8.0 m2 (86 sq ft)
- Aspect ratio: 12.5
- Empty weight: 80 kg (176 lb)
- Gross weight: 160 kg (353 lb)
Performance
- Maximum glide ratio: estimated, 23:1
- Wing loading: 20.0 kg/m2 (4.1 lb/sq ft)
