Rotax 916 iS / iSc Aircraft Engine (A and C24 Variants)

Rotax 916 iS / iSc Turbocharged Aircraft Engine (A & C24 Models)

The Rotax 916 iS / iSc is a dynamic, turbocharged four-stroke piston aircraft engine engineered to deliver an outstanding power-to-weight ratio and a 2,000-hour Time Between Overhaul (TBO). Designed for high performance and efficiency, this engine provides full take-off power up to 15,000 feet and reliable operation at altitudes of up to 23,000 feet.

Featuring redundant electronic fuel injection and ignition, an advanced Engine Management System (EMS) with eco mode, and a turbocharger with intercooler, the Rotax 916 iS series ensures smooth, efficient, and dependable performance across a wide operating range. Available in iS (ASTM-compliant) and iSc (EASA CS-E certified) variants, it is suitable for a broad range of light and experimental aircraft applications.

Applications and Uses

• Light sport aircraft (LSA)

• Experimental and kit-built aircraft

• Touring and cross-country aircraft

• Aircraft requiring sustained high-altitude performance

• Recreational and utility aviation

Features and Benefits

• Dynamic, turbocharged iS engine with excellent power-to-weight ratio

• 2,000-hour TBO for reduced operating costs

• Four-stroke piston engine with four liquid- and air-cooled cylinders

• Redundant electronic fuel injection and ignition with eco mode

• Turbocharger with stainless steel exhaust and intercooler

• Dry sump forced lubrication with separate oil tank

• Automatic valve adjustment via hydraulic valve tappets

• Advanced Engine Management System (EMS)

• Electric starter (12 V or 24 V)

• Integrated propeller speed reduction gearbox

• Proven reliability at high altitudes

Performance

• Maximum Take-Off Power:

  • 117 kW (160 hp) at 5800 rpm

• Maximum Continuous Power:

  • 101 kW (137 hp) at 5500 rpm

• Maximum Torque:

  • 193 Nm (142 ft-lb) at 5800 rpm

  • 175 Nm (129 ft-lb) at 5500 rpm

• Maximum Operating Altitude: 23,000 ft

• Full Take-Off Power Available Up To: 15,000 ft

Engine Data

• Displacement: 1352 cm³ (82.6 cu in)

• Bore: 84.0 mm (3.31 in)

• Stroke: 61.0 mm (2.4 in)

Weights

• Engine with propeller speed reduction gearbox (i = 2.54), overload clutch, turbocharger, intercooler, exhaust system:

  • 85.8 kg (189 lb)

• Engine suspension frame: 2.0 kg (4.4 lb)

• External alternator: 3.0 kg (6.6 lb)

• Air guide baffle: 0.4 kg (0.8 lb)

Fuel

• Minimum MON 85 / RON 95 / AKI 91

• Compatible with leaded and unleaded fuels, AVGAS 100LL, and Ethanol up to 10%

Certification

• iS: ASTM compliant

• iSc: Certified according to EASA CS-E

Health and Safety

Designed with multiple redundancy systems and advanced engine management to enhance operational safety, efficiency, and reliability across a wide range of operating conditions.

Limitations

Engine performance may vary depending on ambient temperature, altitude, and operating conditions. Images are for illustrative purposes only. Installation must be performed in accordance with Rotax guidelines and applicable aviation regulations.