RotorWay Exec

The RotorWay Exec is a series of two-seat, light kit helicopters manufactured by RotorWay International (later Rotor X Aircraft Manufacturing) from the late 1980s through the early 2010s. Known for its affordability and "build-it-yourself" nature, the Exec series became one of the most commercially successful kit helicopters in the world, allowing private individuals to own and operate their own rotary-wing aircraft.

Development

RotorWay International, founded by B.J. Schramm, had a history of producing kit helicopters, beginning with the Scorpion series in the 1960s. The Exec series represented a significant evolution in design and performance, aimed at a broader market of enthusiasts and private pilots.

• Exec 90: Introduced in the late 1980s, the Exec 90 was an evolution of earlier RotorWay designs, featuring an all-aluminum fuselage, a more robust frame, and a proprietary RotorWay RI 162 (150 hp) piston engine. It aimed to offer improved performance, reliability, and ease of construction over its predecessors.
• Exec 162F: Introduced in the early 1990s, the 162F became the most popular and well-known model in the series. It featured a more powerful and technologically advanced 150 hp RotorWay RI 162F FADEC (Full Authority Digital Engine Control) engine, which provided electronic ignition and fuel injection for smoother operation, better fuel efficiency, and easier starting compared to its carbureted predecessor. The 162F also incorporated various airframe improvements and enhanced safety features.
• A600 Talon: Following the success of the Exec 162F, RotorWay continued to refine the design, leading to the introduction of the RotorWay A600 Talon in the late 2000s. While a distinct model, the Talon built upon the fundamental design principles and many components of the Exec 162F, offering further aerodynamic refinements, increased useful load, and updated avionics.
• Rotor X Aircraft Manufacturing: After RotorWay International ceased operations in the 2010s, Rotor X Aircraft Manufacturing acquired the type certificates and intellectual property. They continued to produce modern iterations of the design, such as the RX-series (e.g., RX-20S), which are direct descendants of the Exec line, incorporating contemporary materials and avionics.

Design and Features

The RotorWay Exec series helicopters are characterized by their simple, yet robust, design, making them relatively accessible for home builders.

• Configuration: Two-seat, side-by-side cockpit, single main rotor, two-bladed teetering tail rotor.
• Construction: The airframe primarily uses welded steel tubing for the cabin frame, with an aluminum monocoque tailboom and composite fairings. The rotor blades are typically of aluminum construction.
• Engine: The most iconic feature of the Exec 162F was its proprietary RotorWay RI 162F flat-four, liquid-cooled piston engine. This engine was specifically designed for helicopter applications, known for its compact size and FADEC system.
• Rotor System: The main rotor is a two-bladed, semi-rigid teetering system, common in many light helicopters. The tail rotor is also two-bladed.
• Controls: Standard helicopter cyclic, collective, and anti-torque pedals.
• Landing Gear: Typically skid-type landing gear.

Operational History

Thousands of Exec series kits were sold worldwide, making it a prominent aircraft in the experimental and homebuilt aviation community. Owners typically spent hundreds to thousands of hours assembling their helicopters, a process that required significant mechanical aptitude and adherence to detailed instructions.

The Exec series found use in various roles, including:

• Personal Transport: Its primary role, allowing individuals to experience helicopter flight for recreational purposes.
• Flight Training: Used by some private individuals and small flight schools for basic helicopter flight instruction.
• Aerial Photography/Surveillance: Its relatively low operating cost made it suitable for niche applications.
• Agricultural Use: Limited use for light spraying or observation.

While no longer produced in its original form, many RotorWay Exec helicopters remain operational today, maintained and flown by their dedicated owners.

Specifications (Exec 162F, typical performance)

• Crew: 1 (pilot)
• Capacity: 1 passenger
• Length: 22 ft (6.7 m) (overall)
• Rotor Diameter: 25 ft (7.6 m)
• Height: 8 ft (2.4 m)
• Empty Weight: 975 lb (442 kg)
• Gross Weight: 1,500 lb (680 kg)
• Powerplant: 1 × RotorWay RI 162F, 4-cylinder, liquid-cooled, fuel-injected piston engine, 150 hp (112 kW)
• Maximum Speed: 100 mph (160 km/h, 87 kn)
• Cruise Speed: 95 mph (153 km/h, 83 kn)
• Range: 180 mi (290 km, 160 nmi)
• Service Ceiling: 10,000 ft (3,000 m)
• Rate of Climb: 1,000 ft/min (5.1 m/s)

See Also

• Rotor X Aircraft Manufacturing
• Kit helicopter
• Experimental aircraft