The Roland Z-120 Relax is a German ultralight aircraft, designed and produced by Roland Aircraft of Mendig, introduced at the AERO Friedrichshafen show in 2015. The aircraft is supplied as a kit for amateur construction or complete and ready-to-fly.[1]

Design and development

The Z-120 was designed to comply with the German 120 kg class rules, hence its designation. It features a cantilever high-wing, a single-seat, an enclosed cabin accessed by open doorways, fixed conventional landing gear and a single engine in tractor configuration.[1]

The aircraft is made from special thin-gauge sheet aluminum for lightness. Its 7.45 m (24.4 ft) span wing has an area of 9.6 m² (103 sq ft) and lacks flaps. The standard engine used is a 35 hp (26 kW) Woelfe Aixro XF40 single-rotor Wankel engine.[1]

Specifications (Z-120)

Data from Tacke[1]

General characteristics

• Crew: one
• Wingspan: 7.45 m (24 ft 5 in)
• Wing area: 9.6 m² (103 sq ft)
• Empty weight: 120 kg (265 lb)
• Gross weight: 245 kg (540 lb)
• Fuel capacity: 25 litres (5.5 imp gal; 6.6 US gal)
• Powerplant: 1 × Woelfe Aixro XF40 single-rotor Wankel engine, 26 kW (35 hp)
• Propellers: 2-bladed fixed pitch

Performance

• Maximum speed: 160 km/h (99 mph, 86 kn)
• Cruise speed: 140 km/h (87 mph, 76 kn)
• Stall speed: 54 km/h (34 mph, 29 kn)
• Rate of climb: 2.5 m/s (490 ft/min)
• Wing loading: 25.5 kg/m² (5.2 lb/sq ft)

References

External links

• Official website