Ekolot JK-05L Junior

The Ekolot JK-05L Junior is a Polish ultralight aircraft, designed and produced by Ekolot of Krosno. It was certified in Poland in February 2010. The aircraft is supplied as a kit for amateur construction or as a complete ready-to-fly aircraft.[1][2]

JK-05L Junior
Role Ultralight aircraft
National origin Poland
Manufacturer Ekolot
Status In production
Variants Ekolot KR-030 Topaz

Design and development

The JK-05L was designed to comply with the Fédération Aéronautique Internationale microlight rules. It features a strut-braced high wing, an enclosed cockpit with two seats in side-by-side configuration, fixed tricycle landing gear and a single engine in tractor configuration.[1][2]

The aircraft is made from composites. Its 10.68 m (35.0 ft) span wing employs an NN-1817 airfoil, has an area of 10.24 m2 (110.2 sq ft) and employs carbon fibre flaperons. The twin 35 litres (7.7 imp gal; 9.2 US gal) fuel tanks are located behind the seats. A ballistic parachute is available. The controls include a single, centrally-mounted centre stick and electric trim. The standard engine is the 80 hp (60 kW) Rotax 912UL four-stroke powerplant.[1][2][3]

The JK-05L was later developed into the Ekolot KR-030 Topaz.[1][2]

Specifications (JK-05L Junior)
Ekolot JK-05L Junior

Data from Ekolot[3][4]

General characteristics

  • Crew: one
  • Capacity: one passenger
  • Length: 5.7 m (18 ft 8 in)
  • Wingspan: 10.76 m (35 ft 4 in)
  • Height: 2.25 m (7 ft 5 in)
  • Wing area: 10.2 m2 (110 sq ft)
  • Airfoil: NN-1817
  • Empty weight: 290 kg (639 lb)
  • Gross weight: 450 kg (992 lb)
  • Fuel capacity: 70 litres (15 imp gal; 18 US gal)
  • Powerplant: 1 × Rotax 912UL four cylinder, liquid and air-cooled, four stroke aircraft engine, 60 kW (80 hp)

Performance

  • Maximum speed: 200 km/h (120 mph, 110 kn)
  • Cruise speed: 180 km/h (110 mph, 97 kn) at 75% power
  • Stall speed: 55 km/h (34 mph, 30 kn) flaps down
  • Range: 1,000 km (620 mi, 540 nmi)
  • Rate of climb: 6 m/s (1,200 ft/min)
  • Wing loading: 41 kg/m2 (8.4 lb/sq ft)

References
  1. Bayerl, Robby; Martin Berkemeier; et al: World Directory of Leisure Aviation 2011-12, page 44. WDLA UK, Lancaster UK, 2011. ISSN 1368-485X
  2. Tacke, Willi; Marino Boric; et al: World Directory of Light Aviation 2015-16, page 45. Flying Pages Europe SARL, 2015. ISSN 1368-485X
  3. Ekolot (4 January 2009). "Technical Description". Archived from the original on 16 April 2012. Retrieved 7 June 2012.
  4. Ekolot (29 August 2008). "Technical data of JK 05L Junior". Archived from the original on 13 December 2014. Retrieved 12 December 2014.
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