Description

The 7-cylinder 90CC radial engine is a finely crafted powerplant designed for scale model aircraft enthusiasts who seek authentic appearance, reliable performance, and ease of use. Its classic 7-cylinder radial layout provides a visually striking and historically accurate look while delivering smooth, balanced power suitable for detailed scale models, warbirds, and vintage aircraft replicas.

With a 90CC displacement, the engine offers sufficient power for smaller-scale projects, combining performance with a lightweight design. It comes fully equipped and ready to run, including an exhaust collector ring, spark plugs, a dependable electronic ignition system, and a sturdy engine mount. User-friendly choke and throttle bellcranks streamline installation and operational control, allowing hobbyists to focus on flying and maintenance rather than complex setups.

Precision manufacturing is a hallmark of this engine, with all core components CNC-machined from aluminum or bar stock to ensure tight tolerances, consistent quality, and repeatable performance. The cylinder heads and crankcases are constructed from aircraft-grade aluminum alloys, providing strength and durability while minimizing weight—a crucial factor for maintaining proper aircraft balance and handling.

Durability and longevity are ensured by a heavy-duty double-bearing crankshaft, which stabilizes high-RPM operation and reduces wear. Billet aluminum pistons paired with hardened steel rings promote efficient combustion, reduce friction, and extend engine life. The cylinder bores are hard-chromed and lapped to exact specifications to resist wear and maintain optimal performance. Hardened steel cams provide reliable valve timing and long-term dependability, even under demanding conditions.

Compatible with 87–110 octane gasoline and running on a 32:1 gas-to-oil mixture, this engine offers versatility across various fuel types and environments. It delivers a perfect blend of authentic radial engine aesthetics, modern engineering precision, and dependable power output. Ideal for hobbyists and professionals alike, this radial engine brings historical charm and advanced functionality to scale aviation projects, making it a top choice for those seeking quality and realism in a compact package.