It’s the perfect balance of cost and capability. A Lycoming O-540 carbureted engine with carburetor heat assist keeps operating expenses and pilot workloads low. The Raven I and Clipper I are built on an aluminum monocoque and powder-coated steel tube structure — providing a light and sturdy airframe, while an aerodynamic fuselage optimizes airspeed and fuel economy. Responsive handling is provided by hydraulically boosted controls that eliminate cyclic and collective feedback. A roomy cabin maximizes visibility for every passenger, and our two-bladed rotor system frees up hangar space upon landing.
Our patented Cyclic design offers increased safety, comfort and ease of operation for pilots:
The Clipper I can be equipped with fixed-utility floats to provide an extra layer of safety for over-water operations. These floats remain fully inflated, add approximately 50 lbs to the aircraft’s empty weight and reduce cruise speed by approximately 10 knots.
A hardpoint is a location on the belly designed to carry an external or internal load.
The Hydraulically Boosted Controls on the R44 Raven I assist the pilot in controlling the helicopter's flight surfaces, such as the cyclic, collective, and tail rotor by significantly reducing the manual force required to operate the controls. They enable for more precise and smoother control inputs, improving the overall handling characteristics of the helicopter. Enhanced control responsiveness contributes to the overall safety of helicopter operations, particularly during critical phases of flight such as takeoff, landing, and emergency maneuvers.
The R44 Raven I features a Crashworthy Fuel System with a Bladder Tank designed to prevent fuel leakage and reduce the risk of fire in the event of a crash. The system incorporates several features and design elements to enhance safety for both the helicopter and its occupants. The R44's fuel tank is constructed of an aluminum enclosure containing a flexible, puncture- and tear-resistant bladder that can withstand significant impact without rupturing. Additionally, the fuel system includes flexible joints or self-sealing breakaway couplings that absorb energy and prevent breakage. These are designed to disconnect safely and seal off the fuel line if excessive force is applied, preventing fuel spillage.
The Raven I's Carburetor Heat Assist feature enhances safety and reduces pilot workload by automatically adding carb heat when the collective is lowered and reducing carb heat when the collective is raised.
The Engine Monitoring Unit tracks key engine parameters such as engine-related exceedances and flight data. Also, the Robinson EMU App gives pilots, operators, and maintenance personnel the capability to wirelessly connect to the onboard EMU unit on properly-equipped Robinson R44 helicopters to view certain aircraft performance parameters recorded during operation.
ITEM | Raven I | Clipper I |
---|---|---|
Engine | Lycoming O-540, six cylinder, carbureted | |
Horsepower | Derated to 225 hp for takeoff and 205 hp continuous | |
Maximum Gross Weight | 2400 lb (1089 kg) | |
Approximate Empty Weight (including oil & standard avionics) | 1450 lb (658 kg) | 1500lb (680 kg) |
Fuel Capacity (29.5 gal) | 177 lb (80 kg) | |
Auxiliary Fuel (17.0 gal) | 17.0 gal (64.4 l) / 102 lb (46 kg) | |
Pilot, Passengers, and Baggage (with maximum fuel) | 773 lb (351 kg) | 723 lb (328 kg) |
Cruise Speed at Maximum Gross Weight | Up to 108 kts (200 km/h) | Up to 101 kts (187 km/h) |
Maximum Range (no reserve) | Approximately 300 nm (550 km) | |
Hover Ceiling IGE at Maximum Gross Weight | 6400 ft at 2400 lb | |
Hover Ceiling OGE at Maximum Gross Weight | 4000 ft at 2300 lb | |
Rate of Climb | Over 1000 fpm | |
Maximum Operating Altitude | 14,000 ft | |
Electrical System | 28 volt |