Oberlerchner JOB 15

Design and development

Using experience as sailplane designers and builders, Josef Oberlerchner Holzindustrie determined to create a powered aircraft. The result was the JOB 5, a two-seat side-by-side light aircraft of wooden construction. 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

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-D2B engine, three built.

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)

Data from Janes's All The World's Aircraft 1969-70

General characteristics

Crew: one (pilot)

Capacity: two passengers

Length: 7.68 m (25 ft 2½ in)

Wingspan: 10.10 m (33 ft 1½ in)

Height: 1.99 m (6 ft 6½ in)

Wing area: 14.7 m² (158.2 ft²)

Aspect ratio: 6.94

Empty weight: 601 kg (1,325 lb)

Gross weight: 965 kg (2,127 lb)

Powerplant: 1 × Avco Lycoming O-320-A2B four-cylinder air-cooled horizontally-opposed, 112 kW (150 hp) each

Performance

Maximum speed: 235 km/h (146 mph)

Cruising speed: 195 km/h (121 mph)

Range: 1,000 km (620 miles)

Service ceiling: 4,500 m (14,750 ft)

Rate of climb: 4.4 m/s (866 ft/min)