PIK-13
| PIK-13 | |
|---|---|
| General information | |
| Type | Competition sailplane |
| National origin | Finland |
| Manufacturer | Polyteknikkojen Ilmailukerho |
| Number built | 1 |
| History | |
| First flight | 1954 |
The PIK-13 was a sailplane constructed in Finland to compete in the 1954 World Gliding Championships,[1] held at Camphill Farm, Great Hucklow, UK.[2] It was a conventional mid-wing design of "workmanlike" construction[3] and underwent five test flights in the course of 1954 before its entry in the competition.[4]
In the championships, the PIK-13 was flown by Antti Koskisen,[2][5][6] who was placed 16th with 931 points.[7] The PIK-13 was destroyed in an accident on 26 March 1956 when the control stick broke in flight.[4] Pilot Jorma Jalkanen parachuted to safety.[4]
Specifications
[edit]Data from Jane's all the World's Aircraft 1955-56[8]
General characteristics
- Length: 7.3 m (23 ft 11 in)
- Wingspan: 17.6 m (57 ft 9 in)
- Height: 1.55 m (5 ft 1 in)
- Wing area: 14.6 m2 (157 sq ft)
- Aspect ratio: 21
- Airfoil: root:Göttingen 549, tip:Göttingen 693
- Empty weight: 197 kg (434 lb)
- Gross weight: 300 kg (661 lb)
Performance
- Never exceed speed: 250 km/h (160 mph, 130 kn)
- Auto-tow maximum speed:115 km/h (71 mph; 62 kn)
- Aero-tow maximum speed:130 km/h (81 mph; 70 kn)
- g limits: +8
- Maximum glide ratio: 33:1 at 85 km/h (53 mph; 46 kn)
- Rate of sink: 0.7 m/s (140 ft/min) at 62 km/h (39 mph; 33 kn)
- Wing loading: 20.5 kg/m2 (4.2 lb/sq ft)
Notes
[edit]- ↑ Taylor 1989, p.726
- 1 2 "World Gliding Championships" 1954, p.250
- ↑ "Sailplanes seen at Camphill" 1954, p.3
- 1 2 3 "PIK-sarjan lentokoneet
- ↑ Yates 1954, p.74
- ↑ Wiggin 1954, p.5
- ↑ The Lashan Newsletter No 23, 1954, editorial
- ↑ Bridgman, Leonard (1955). Jane's all the World's Aircraft 1955-56. London: Jane's all the World's Aircraft Publishing Co. Ltd.
References
[edit]- "Editorial" (PDF). The Lasham Newsletter (23). Lasham: Lasham Gliding: 1–2. August 1954. Retrieved 2009-01-11. [dead link]
- "PIK-sarjan lentokoneet". Polyteknikkojen Ilmailukerho website. Retrieved 2009-01-11.
- "Sailplanes seen at Camphill" (PDF). The Lasham Newsletter (23). Lasham: Lasham Gliding: 2–3. August 1954. Retrieved 2009-01-11. [dead link]
- "Suomalaisia purjelentokoneita". Ilmailu (11): 26. 1959.
- Taylor, Michael J. H. (1989). Jane's Encyclopedia of Aviation. London: Studio Editions.
- Wiggin, Barney L. (November–December 1954). "The World Contest" (PDF). Soaring: 2–9. Archived from the original (PDF) on 2006-10-02. Retrieved 2009-01-11.
- "World Gliding Championships". Flight: 250. 26 February 1954. Retrieved 2009-01-11.
- Yates, Alan (16 July 1954). "Great Hucklow Prospects". Flight: 73–74. Retrieved 2009-01-11.