JPM 03 Loiret

The JPM 03 Loiret is a French amateur-built aircraft that was designed by Jean-Pierre Marie and produced by Avions Jean-Pierre Marie (JPM) of Le Mesnil-Esnard. The aircraft is a development of the JPM 01 Médoc and is supplied as plans for amateur construction.[1][2]

JPM 03 Loiret
Role Amateur-built aircraft
National origin France
Manufacturer Avions Jean-Pierre Marie (JPM)
Designer Jean-Pierre Marie
Status Plans available (2015)
Unit cost
€400 (2015)
Developed from JPM 01 Médoc

The aircraft is named for the French community of Loiret.

Design and development

The Loiret features a cantilever low wing, a two-seats-in-side-by-side configuration enclosed cockpit under a bubble canopy, fixed tricycle landing gear with wheel pants and a single engine in tractor configuration.[1][2]

The aircraft is made from steel tube with its flying surfaces covered in doped aircraft fabric. Its 7.72 m (25.3 ft) span wing has an area of 8.49 m2 (91.4 sq ft) and mounts flaps. The Loiret was designed specifically to use only the 85 hp (63 kW) Jabiru 2200 four-stroke powerplant.[1][2]

The aircraft can be built with a single-piece wing or a three-piece folding wing. With the wings folded the resulting width is 2.36 m (7.7 ft), permitting ground transport or storage.[3]

Specifications (JPM 03 Loiret)

Data from Bayerl, Tacke and JPM[1][2][3]

General characteristics

  • Crew: one
  • Capacity: one passenger
  • Length: 7 m (23 ft 0 in)
  • Wingspan: 7.72 m (25 ft 4 in)
  • Wing area: 8.49 m2 (91.4 sq ft)
  • Empty weight: 250 kg (551 lb)
  • Gross weight: 450 kg (992 lb)
  • Fuel capacity: 60 litres (13 imp gal; 16 US gal)
  • Powerplant: 1 × Jabiru 2200 four cylinder, air-cooled, four stroke aircraft engine, 60 kW (80 hp)
  • Propellers: 2-bladed wooden

Performance

  • Maximum speed: 221 km/h (137 mph, 119 kn)
  • Cruise speed: 198 km/h (123 mph, 107 kn)
  • Stall speed: 64 km/h (40 mph, 35 kn)
  • Never exceed speed: 275 km/h (171 mph, 148 kn)with no reserve
  • Endurance: 3 hours, plus 50 minute reserve
  • Service ceiling: 4,500 m (14,800 ft)
  • g limits: +3.5/–1.5
  • Rate of climb: 5 m/s (980 ft/min)
  • Rate of sink: 2.5 m/s (490 ft/min) at 90 km/h (55.9 mph)
  • Wing loading: 53.0 kg/m2 (10.9 lb/sq ft)

References
  1. Bayerl, Robby; Martin Berkemeier; et al: World Directory of Leisure Aviation 2011-12, page 105. WDLA UK, Lancaster UK, 2011. ISSN 1368-485X
  2. Tacke, Willi; Marino Boric; et al: World Directory of Light Aviation 2015-16, page 112. Flying Pages Europe SARL, 2015. ISSN 1368-485X
  3. JPM (n.d.). "Le JPM 03 " Loiret "" (PDF). Retrieved 4 October 2012.
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