Chernov Che-25
| Che-25 | |
|---|---|
| Role | Four seat light amphibian aircraft
|
| National origin | Russia |
| Designer | Boris Chernov |
| First flight | 1995 |
The Chernov Che-25 is a four-seat, twin engine
in the 1990s. The Che-27 is an enlarged, five seat version.Design and development
The Che-25 is very similar in general appearance to earlier Boris Chernov designs such as the two seat
propeller but the 912 installation is cowled, with three-bladed propellers.[1]
The Che-25 has a flat sided, two step hull formed from a vacuum moulded
fibreglass sandwich. The integral fin forms a cruciform tail with a swept, tapered, straight edged fin initially carried a balanced rudder, though the Che-25M variant with its higher tailplane abandoned the balance. The underwing cabin has dual controls and is entered via gull wing doors. There is a water rudder attached just aft of the rear step. The optional land undercarriage has mainwheels on mid-fuselage mounted legs, which rotate forward through 90° to allow water landings, and a tailwheel fixed to the water rudder.[1]
The Che-25 was built by the student design bureau SKB-1 and first flew in 1995. It appeared in public in September 1996 at the
Variants
Data from Jane's All the World's Aircraft 2009-10[1]
- Che-25
- Original version.
- Che-25M
- Raised tailplane, rudder balance removed.
- BD-205
- Chinese version of Che-25 marketed by the Harbin Institute of Technology.
- Che-27
- "Practically indistinguishable" from Che-25M with the same engine choices, weights and dimensions but 1.00 m (39.4 in) longer, a wider wheel track due to splayed undercarriage legs and five seats. First flown June 2003 and exhibited at the Moscow Aerosalon in August 2007.
- State Avia SA-1
- Che-27M2 marketed by State Avia.
Specifications (Rotax 912)
Data from Jane's All the World's Aircraft 2009-10[1]
General characteristics
- Capacity: Four
- Length: 7.70 m (25 ft 3 in)
- Wingspan: 12.60 m (41 ft 4 in)
- Height: 2.50 m (8 ft 2 in) land wheels, fuselage in flight position
- Wing area: 16.38 m2 (176.3 sq ft) gross
- Empty weight: 630 kg (1,389 lb)
- Max takeoff weight: 1,150 kg (2,535 lb)
- Fuel capacity: 130 L (28.6 Imp gal; 34.3 US gal)
- Powerplant: 2 × flat four, 73.5 kW (98.6 hp) each
- Propellers: 3-bladed, 1.84 m (6 ft 0 in) diameter fixed pitch
Performance
- Maximum speed: 200 km/h (120 mph, 110 kn)
- Cruise speed: 160 km/h (99 mph, 86 kn) maximum
- Range: 900 km (560 mi, 490 nmi)
- Wing loading: 70.2 kg/m2 (14.4 lb/sq ft) maximum
- Power/mass: minimum, 83 W/m2 (0.051 lb/sq ft)
- Unstick speed: 70 km/h (44 mph; 38 kn)
- Take-off run on land: 80 m (262 ft)
- Take-off run on water: 60 m (197 ft)
References
- ^ ISBN 978-0-7106-2880-0.