Ikarus C42

Design and development

The Ikarus C42 is a single-engined high-wing monoplane with side-by-side seats for two in a 1.22 m (48 in) wide cabin. The C42 is manufactured with either an 80 hp (60 kW) Rotax 912 engine or a 100 hp (75 kW) Rotax 912s engine. The Rotax engine has a low fuel consumption and relatively low noise. The engine drives the propeller, which has ground-adjustable pitch, through a gearbox with a 2.273:1 reduction ratio.

The aircraft is structurally supported by a backbone of large diameter aluminium tube which runs the length of the aircraft. The cabin and fuselage shell is a composite material which, being non-structural, can be removed for inspection and repair.

The wings are constructed of tubular front and rear spars. The wings and flying control surfaces are covered in Kevlar/Mylar/Polyester laminate. The wings can be removed or folded (if an optional folding kit is installed) for storage and transportation. The wing tips are of composite construction which reduces drag and improves low speed handling. Access to the cabin is provided by two Gull-wing doors.

Controls

A single centre stick controls the ailerons and elevators. Electrical pitch trim is controlled by two buttons on the top of the stick, operated by the thumb. A push to talk button is on the front of the stick, operated by the index finger, together with a vertical hand operated brake lever similar to a motorcycle front brake lever.

Rudder pedals are dual control. The distance from the seat to the pedals is fixed because the seat position is not adjustable.

The dual control throttle levers are situated between the legs, and pivot from side to side so can be folded out of the way making entry and exit of the aircraft easier.

The flaps are controlled by a centrally-mounted lever on the roof of the cabin. The relatively short lever does make the operation of lowering flaps quite physical when combined with holding the centre control stick at the same time.

Variants

C42B

Updated model for the US light-sport aircraft category.

C42C

Introduced in 2012, this model is an update of the basic design with composite parts, winglets, aileron spades, reduced wingspan and a Flettner rudder as well as a new engine mount design derived from the C52.

C42CS

Introduced in 2015 at the AERO Friedrichshafen show, it incorporates a new landing gear design consisting of a single curved composite gear main leg per side, new brake design and a redesigned interior.

Specifications (Ikarus C42)

General characteristics

Crew: 1

Capacity: 1 passenger

Length: 20 ft 6 in (6.25 m)

Wingspan: 31 ft 0 in (9.45 m)

Height: 7 ft 4 in (2.24 m)

Wing area: 134.5 ft² (12.5 m²)

Empty weight: 583 lb (265 kg)

Max. takeoff weight: (depends on country) approx 1041 lb (450 kg (992 lb)(UK without BRS, 472.5kg With BRS Fitted)

Wing loading: 37.8 kg/m²)

Powerplant: 1 × Rotax 912ULS flat-4 engine, 100 hp (75 kW) three-blade, ground adjusted, carbon fibre, fixed-pitch propeller

Performance

Range: 432 miles (375 nm, 695 km)

Extended range 898 miles (780 nm, 1,445 km) with long-range tanks

Rate of climb: 1050 ft/min (320 m/min)

Aerotowing

In conjunction with a Rotax 912 ULS, the Ikarus C42 may be used to tow gliders. The maximum nominal ultimate strength at weak link must not exceed 660 pounds. Banner towing is allowed with the smaller Rotax 912 UL.