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As there is a low rotor clearance at the aircraft front, it is approached from the rear when the rotors are turning. Due to the limitations of the Ka-26, USSR and Romania agreed under the Comecon trade to build a single-turboshaft engine version, the Kamov Ka-126 , with better aerodynamics and range.
Intermeshing rotored helicopters have high stability and powerful lifting capability. The latest Kaman K-MAX model is a dedicated sky-crane design used for construction work, and has been modified for trials by the USMC as an optionally-unmanned cargo transporter. Unmanned aerial vehicles with intermeshing rotors have also been flown. [2]
The first aerobatic manned drone, as this type of electrically powered multi-rotor helicopter is known, had 12 rotors and could carry 1-2 people. [37] Manned drones or eVTOL as they are called typically multirotor designs powered by batteries gained increasing popularity and designs in the 2020s. [38]
A coaxial-rotor aircraft is an aircraft whose rotors are mounted one above the other on concentric shafts, with the same axis of rotation, but turning in opposite directions (contra-rotating). This rotor configuration is a feature of helicopters produced by the Russian Kamov helicopter design bureau.
This category is for helicopters whose rotors were driven by piston engines mounted at the ends of the rotor blades. Pages in category "Tipmotor-powered helicopters" The following 2 pages are in this category, out of 2 total.
The R66 is a single-engined helicopter with two-bladed main and tail rotors, and a fixed skid landing gear. The R66 is constructed from advanced composites, aluminum alloy (sheet), and chromoly steel. Like the R44, the R66 has both electromechanical instruments and optional digital glass cockpit. [22]
The helicopters shown above are one-off prototypes built by Petter Muren. None of these helicopters are for sale, however, the Proxflyer rotor system is licensed to Interactive Toy Concepts. [1] The company’s R/C helicopters, which include Bladerunner and Micro Mosquito, [2] are all based on the Proxflyer rotor design. The Bladerunner is ...
The S-72 in flight without a main rotor in 1984. Sikorsky and Bell Helicopters competed for the RSRA contract. [1] Bell's preferred proposal was the "Bell 646A" with rotors based on the Bell 240 UTTAS; the alternative was the smaller "Bell 646B" based on the Bell 309 KingCobra. [2]