Chadwick C-122
# Chadwick C-122

The Chadwick C-122 was a single-seat ultralight helicopter developed in the United States in the 1980s. It was a minimalist design consisting of a fibreglass shell enclosing a truss structure to which the engine, rotor mast, landing gear, and pilot's seat were attached. A wide variety of roles were envisaged for the aircraft, and therefore it was equipped with attachment points for spray bars, a cargo hook, external cargo racks, and even weapons for law enforcement work. The skid-type undercarriage could be quickly fitted with wheels for ground-handling, or floats for operations from water.

A prototype was constructed in 1985, and publicly unveiled at the Helicopter Association International annual convention the following year. Flight testing continued through 1987, with deliveries anticipated for that Autumn.

## Variants proposed

* C-122S - basic single-seat utility version
* C-122T - two-seat version
* C-122AG - agricultural version
* C-122PI - "Police interceptor" version
* C-122R - RPV version
* C-122W - armed ("weapons") version

A tethered helicopter training platform based on the C-122 was also proposed

## Specifications (C-122S)

General characteristics

* Crew: One pilot
* Length: 19 ft 0 in (5.79 m)
* Height: 7 ft 2 in (2.19 m)
* Empty weight: 253 lb (115 kg)
* Gross weight: 500 lb (227 kg)
* Powerplant: 1 × Rotax 503 , 63 hp (47 kW)
* Main rotor diameter: 18 ft 6 in (5.64 m)
* Main rotor area: 269 sq ft (25.0 $m^2)$

Performance

* Maximum speed: 115 mph (185 km/h, 100 kn)
* Range: 120 mi (193 km, 100 nmi)
* Service ceiling: 13,480 ft (4,110 m)
