Oberlerchner JOB 15
 | This article includes a list of general references, but it lacks sufficient corresponding inline citations. (January 2012) |
| JOB 15 | |
|---|---|
 A JOB 15-180/2 | |
| General information | |
| Type | Two-seat lightplane |
| Manufacturer | Josef Oberlerchner Holzindustrie |
| Number built | 24 |
| History | |
| Manufactured | 1962-1966 |
| Introduction date | 1962 |
| First flight | 1960 |
| Developed from | Oberlerchner JOB 5 |
The Oberlerchner JOB 15 was an Austrian two-seat light aircraft produced by Josef Oberlerchner Holzindustrie, which had previously designed and built gliders.
Design and development
[edit]Using experience as sailplane designers and builders, Josef Oberlerchner Holzindustrie determined to create a powered aircraft. The result was the JOB 5,[1] a two-seat side-by-side light aircraft of wooden construction.[2] It first flew in 1958. The company decided to build a slightly larger three-seat production version, the JOB 15. The JOB 15 was a low-winged monoplane of composite construction with fixed tailwheel undercarriage, with a wooden wing and steel-tube fuselage covered in glass-reinforced plastic and fabric. The prototype first flew in 1960 with a 135 hp (101 kW) Avco Lycoming O-290-D2B engine. Three aircraft were built before the a more powerful version, the JOB 15-150, was built with a 150 hp (112 kW) Avco Lycoming O-320-A2B engine. After 11 15-150s had been built an improved version, the JOB 15-150/2, was introduced and ten were built before production ended in the late 1960s.
Variants
[edit]- JOB 5
- Prototype two-seater, 95 hp Continental C90-12F engine, one built
- JOB 15
- Production three-seater with a 135 hp (101 kW) Avco Lycoming O-290 engine, three built.[3]
- JOB 15-150
- Re-engined version with a 150 hp (112 kw) Avco Lycoming O-320-A2B engine, 11 built.
- JOB 15-150/2
- Improved version, ten built.
Specifications (15-150)
[edit]Data from Janes's All The World's Aircraft 1969-70[4]
General characteristics
- Crew: 1
- Capacity: 3 passengers
- Length: 7.68 m (25 ft 2 in)
- Wingspan: 10.10 m (33 ft 2 in)
- Height: 1.99 m (6 ft 6 in)
- Wing area: 14.7 m2 (158 sq ft)
- Aspect ratio: 6.94:1
- Airfoil: NACA 643-418 at root, NACA 643-412 at tip
- Empty weight: 601 kg (1,325 lb)
- Max takeoff weight: 965 kg (2,127 lb)
- Fuel capacity: 140 L (37 US gal; 31 imp gal)
- Powerplant: 1 × Avco Lycoming O-320-A2B four-cylinder air-cooled horizontally-opposed engine, 110 kW (150 hp)
Performance
- Maximum speed: 235 km/h (146 mph, 127 kn)
- Cruise speed: 195 km/h (121 mph, 105 kn) (economical cruise)
- Stall speed: 70 km/h (43 mph, 38 kn) (flaps down)
- Never exceed speed: 285 km/h (177 mph, 154 kn)
- Range: 1,000 km (620 mi, 540 nmi) with max payload (65% power)
- Service ceiling: 4,500 m (14,800 ft)
- Rate of climb: 4.40 m/s (866 ft/min)
- Takeoff run to 15 m (50 ft): 306 m (1,000 ft)
- Landing run from 15 m (50 ft): 338 m (1,109 ft)
References
[edit]- ^ The prototype JOB 5 was a side-by-side two-seater powered by Continental C90-12F (95 hp). It was built in 1957 and flew for over 100 hrs during 1958-9. These development flights led the company to incorporate the changes which led to the JOB 15.
- ^ Walford 1960, p.151.
- ^ Taylor 1969, p. 7.
- ^ Taylor 1969, pp. 7–8.
- The Illustrated Encyclopedia of Aircraft (Part Work 1982-1985). Orbis Publishing.
- Mondey, David (1981). Encyclopedia of The World's Commercial and Private Aircraft. New York: Crescent Books.
- Taylor, John W. R., ed. (1969). Jane's All The World's Aircraft 1969-70. London: Jane's Yearbooks. ISBN 0-354-00051-9.
- Walford, Edith (18 January 1960). "JOB 5 Sport Plane Enters Final Testing". Aviation Week & Space Technology. Vol. 72, no. 3. pp. 131, 135, 137, 139.
External links
[edit]
Media related to Oberlerchner JOB 15 at Wikimedia Commons
- Schmidt, Pierre; Alpen-Klassike: Von der JOB 5 zur JOB 15, Modell Aviator, 2009. (German)