Ehroflug Coach II S

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Coach II S
Role Ultralight aircraft
National origin Switzerland
Manufacturer Ehroflug
Designer Egon Scheibe
Introduction 1989
Status In production
Produced 1989-present
Number built 15 (1998)
Unit cost
36,000 (assembled, 2011)

The Ehroflug Coach II S is a Swiss ultralight aircraft, designed by Egon Scheibe and produced by Ehroflug of Altnau. It was introduced in 1989. The aircraft is supplied as plans, as a kit for amateur construction or as a complete ready-to-fly-aircraft.[1][2]

Design and development[edit]

The aircraft was designed to comply with the Fédération Aéronautique Internationale microlight rules. It features a strut-braced parasol wing a two-seats-in-side-by-side configuration open cockpit, fixed conventional landing gear and a single engine in tractor configuration.[1][2]

The aircraft fuselage is made from welded steel tubing, with the wing built from aluminium tubing with wooden ribs. The airframe is covered in doped aircraft fabric. Its 11.34 m (37.2 ft) span wing has an area of 15 m2 (160 sq ft) and is supported by cabane struts, V-struts and jury struts. The wings are quickly detachable for storage. Standard engines available are the 70 hp (52 kW) Sauer 2.1 four-stroke Volkswagen air-cooled engine and the 64 hp (48 kW) Rotax 582 two-stroke powerplant.[1][2]

Specifications (Coach II S)[edit]

Data from Bayerl and Purdy[1][2]

General characteristics

  • Crew: one
  • Capacity: one passenger
  • Wingspan: 11.34 m (37 ft 2 in)
  • Wing area: 15 m2 (160 sq ft)
  • Empty weight: 230 kg (507 lb)
  • Gross weight: 450 kg (992 lb)
  • Fuel capacity: 45 litres (9.9 imp gal; 12 US gal)
  • Powerplant: 1 × Sauer 2.1 four cylinder, air-cooled, four stroke aircraft engine, 70 kW (94 hp)
  • Propellers: 2-bladed wooden

Performance

  • Maximum speed: 125 km/h (78 mph; 67 kn)
  • Cruising speed: 100 km/h (62 mph; 54 kn)
  • Stall speed: 50 km/h (31 mph; 27 kn)
  • g limits: +5/-3
  • Rate of climb: 2 m/s (390 ft/min)
  • Wing loading: 30 kg/m2 (6.1 lb/sq ft)

References[edit]

  1. ^ a b c d Bayerl, Robby; Martin Berkemeier; et al: World Directory of Leisure Aviation 2011-12, page 44. WDLA UK, Lancaster UK, 2011. ISSN 1368-485X
  2. ^ a b c d Purdy, Don: AeroCrafter - Homebuilt Aircraft Sourcebook, Fifth Edition, page 149. BAI Communications, 15 July 1998. ISBN 0-9636409-4-1

External links[edit]