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Please fill in the enquiry form below and we will endeavour to reply within the next 24-48 hours.
Please fill in the enquiry form below and we will endeavour to reply within the next 24-48 hours.
Please fill in the enquiry form below and we will endeavour to reply within the next 24-48 hours.
Please fill in the enquiry form below and we will endeavour to reply within the next 24-48 hours.
RT300-XE
The RT300-XE is a compact, high-performance single-rotor rotary engine engineered for demanding applications. With a 300 cc displacement and 28 kg weight, it delivers up to 50 hp with exceptional efficiency and durability.
Featuring liquid cooling, direct or reduction drive options and programmable fuel injection, the RT300-XE enables streamlined airframe integration, reduced vibration and longer service life - making it ideal for space- and weight-constrained propulsion platforms.
The RT300-XE’s advanced rotary architecture achieves industry-leading power-to-weight metrics through minimal reciprocating mass and compact packaging. With a quoted 1000-hour TBO, low internal vibration and efficient fuel consumption (~0.56 lbs per hp-hour), it supports sustained high-performance and endurance missions.
High Power Density: Single-rotor rotary architecture delivers exceptional power-to-weight performance with minimal reciprocating mass and smooth output.
Advanced Thermal Control: Liquid-cooling system maintains stable operating temperatures under continuous load, ensuring durability and consistent high-performance delivery.
Flexible Drive Integration: Multiple drive options - flange, direct, or reduction - enable seamless compatibility with varied propellers and mission profiles.
Fan-drive system range.
Compact Rotary Propulsion Delivering High Power, Efficiency and Flexibility
The RT300-XE features a single-rotor rotary design that maximises power density while minimising moving mass. This rotary architecture delivers smooth, reliable torque and rapid response, ensuring consistent performance across demanding missions. With far fewer moving components than comparable reciprocating engines, it enables lighter, more compact airframe integration, improving efficiency, extending range and reducing maintenance requirements without sacrificing power.
The RT300-XE offers flange, direct and reduction drive options, including 2.5:1 or 2.2:1 ratios, providing exceptional flexibility across a wide range of propeller and rotor systems. This adaptable configuration simplifies integration, shortens development timelines and ensures optimal performance across diverse aviation and unmanned platforms.
The RT300-XE is engineered for fuel efficiency and long-term durability. Its liquid-cooled design, programmable fuel injection and inherently low-vibration architecture deliver excellent fuel economy at approximately 0.56 lbs per hp-hour, while minimising wear. With a quoted 1,000-hour TBO, it is ideally suited to high-mission-count and endurance-critical operations.
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Frequently
Asked Questions
The RT300-XE is a single-rotor rotary engine with a 300 cc displacement.
It offers up to 35 hp to 50 hp peak, with continuous ratings of 22 hp or 32.5 hp, and the engine system weighs 28 kg (61.7 lbs).
Drive types include flange, direct or reduction (2.5:1 or 2.2:1). The rotation is counter-clockwise (viewed forward).
Fuel injection system is standard. Fuel types: unleaded 95 octane or Avgas 100LL.
Approximate fuel consumption is 0.56 lbs per hp-hour.
Liquid cooling is used. Starting device: electric onboard starter.
The quoted TBO (time between overhauls) is 1000 hours, subject to flight profile.
Its small form-factor, lightweight design and rotary architecture with minimal vibration allow streamlined cowlings, improved aerodynamics, and tighter packaging.
The rotary design inherently minimises reciprocating mass and vibration; combined with liquid cooling and durable construction it supports long service intervals and high endurance.
Yes - fuel injection is programmable with CANbus support, and optional generators (300 W 12 V or 2-3 kW at 28 V) are available
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