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Robinson Helicopters R66 vs Robinson Helicopters R66 Marine

In category terms, the standard Robinson R66 is a light, single-turbine helicopter aimed at general utility missions such as transport, training, and aerial work. The Robinson R66 Marine is the same core light single-turbine model but configured specifically for overwater and shipboard-capable operations, typically adding marine-oriented equipment and protection features while keeping the underlying aircraft category unchanged. Range is broadly similar because both versions share the same engine and fuel system in their basic configuration, so typical mission radius and endurance are comparable. However, the Marine variant’s optional or installed maritime equipment can add weight and drag, which may slightly reduce real-world range and payload margins depending on fit and operating conditions. Passenger capacity is essentially the same for both: they are commonly configured to carry a pilot plus up to four occupants (five seats total). As with range, the Marine package can trade some payload capacity for mission equipment, so the practical number of passengers at a given fuel load may be slightly more constrained, especially in hot/high or offshore conditions.

SpecROBINSON R66ROBINSON R66 Marine
Summary
Cockpit22
DOC / nm$ 3.49$ 3.49
Min Crew11
Total Seats55
Flight RulesVFRVFR
ManufacturerRobinson HelicoptersRobinson Helicopters
Aircraft NameR66R66 Marine
CertificationFAA / EASAFAA / EASA
Max Range (nm)350350
DOC / nm / Seat$ 0.70$ 0.70
OEM VerificationUn-VerifiedUn-Verified
Useful Load (lbs)13551355
Standard Cabin Seats33
Direct Operating Cost$ 384$ 384
Flight Deck (Base Spec)Gyro / AnalogGyro / Analog
Max Cruise Speed (ktas)110110
Base Aircraft Price (USD)$ 920,000$ 965,000
Cabin
Cockpit22
Min Crew11
Total Seats55
Standard Cabin Seats33
Engine
FADECNoNo
ModelRR300RR300
Fuel TypeJetFuelJetFuel
TBO (hrs)20002000
Horsepower300300
No. of Engines11
Fuel Capacity (gal)73.673.6
Dimensions
Length (ft)38.338.3
Overall Height (ft)11.411.4
Rotor Diameter (ft)3333
Cabin Volume (cu. ft)5050
Baggage Volume Ext. (cu. ft)1818