CSS-12
| CSS-12 | |
|---|---|
| |
| Role | Airliner |
| National origin | Poland |
| Manufacturer | Centralne Studium Samolotów (C.S.S.) |
| First flight | 22 November 1950 |
| Number built | 1 |
The CSS-12 was a prototype Polish twin-engined feederliner of the 1950s. A single example was built and flown in 1950, but no production followed.
Design and development
The
primary trainer, an aerobatic trainer, the CSS-11 and a twin-engined feederliner, which was designated CSS-12.[2][3]
Work on the CSS-12 began in 1948, with the prototype making its maiden flight on 22 November 1950.
At the end of 1950, the Polish aviation industry was re-organised, with large orders being placed for license-production of Soviet
Mikoyan–Gurevich MiG-15 jet fighters. As part of this reorganisation, LWD and the CSS were disbanded, and work on the CSS-12 was suspended.[6] In 1955 flight testing of the CSS-12 resumed.[6] Although testing was successful, with the aircraft setting an international class altitude record of 6,600 metres (21,653 ft) while carrying a payload of 1,020 kilograms (2,240 lb) on 27 December 1957, no production followed, as the CSS-12 did not meet the requirements of Poland's national airline LOT and no suitable replacements for its out-of production German engines were available.[5][7] Instead, the CSS-12 formed the basis of the larger four-engined PZL MD-12 airliner which made its first flight in 1959.[6][8]
Specifications
Data from Jane's All The World's Aircraft 1956–57[9]
General characteristics
- Crew: 2
- Capacity: 10 passengers
- Length: 12.5 m (41 ft 0 in)
- Wingspan: 18.5 m (60 ft 8 in)
- Height: 5.12 m (16 ft 10 in)
- Wing area: 40.10 m2 (431.6 sq ft)
- Aspect ratio: 8.53:1
- Airfoil: NACA 23018 (root), NACA 23009 (tip)
- Empty weight: 3,500 kg (7,716 lb)
- Gross weight: 5,500 kg (12,125 lb)
- Powerplant: 2 × Argus As 411 TA air-cooled inverted V12 engine, 330 kW (440 hp) each
- Propellers: 2-bladed Argus constant-speed metal propellers
Performance
- Maximum speed: 365 km/h (227 mph, 197 kn) at 2,400 m (7,900 ft)
- Cruise speed: 320 km/h (200 mph, 170 kn) at 2,600 m (8,500 ft)
- Range: 1,200 km (750 mi, 650 nmi)
- Service ceiling: 6,000 m (20,000 ft)
- Rate of climb: 6.5 m/s (1,280 ft/min)
Notes
- ^ Cynk Flight 16 November 1956, p. 779.
- ^ a b Bridgman 1956, p. 193.
- ^ a b c Cynk Flight 16 November 1956, p. 780.
- ^ a b Bridgman 1956, p. 194.
- ^ a b Szczepaniec, Paweł (18 February 2008). "CSS-12". Encyklopedia samolotów. Samoloty.pl. Archived from the original on 25 August 2013. Retrieved 25 August 2013.
- ^ a b c Cynk Flight 23 November 1956, p. 814.
- ^ "Aircraft Intelligence: Poland: Record Flights". Flight. Vol. 71, no. 2507. 8 February 1957. p. 181.
- ^ Taylor 1961, p. 118.
- ^ Bridgman 1956, pp. 193–194.
References
- Bridgman, Leonard (1956). Jane's All The World's Aircraft 1956–57. New York: McGraw-Hill Book Company.
- Cynk, J. B. (16 November 1956). "Polish Aircraft Development: Part I". Flight. Vol. 70, no. 2495. pp. 779–781.
- Cynk, J. B. (23 November 1956). "Polish Aircraft Development: Part II". Flight. Vol. 70, no. 2496. pp. 814–815.
- Taylor, John W. R. (1961). Jane's All The World's Aircraft 1961–62. London: Sampson Low, Marston & Company, Ltd.