Rotor system 2-blade semi-rigid seesaw rotor. In order to work smoothly, pre-cone and pause measures are adopted. Rotor blades are all metal bonded, consisting of extruded aluminum alloy beams, aluminum skins and dimple cores, and the leading edge is covered with a wear-resistant stainless steel shell. The rotor blade is connected with the hub body through the root sleeve. The hub body and the rotor shaft are connected by a universal joint.
A stabilizer at an angle of 90 degrees with the blade is installed above the rotor and connected with the hydraulic shimmy damper. The tail rotor is a rigid structure with two metal blades. The tail rotor shaft is hinged with oblique ball head with pre-cone and suspension device. The engine power turbine is connected with the input shaft of the main reducer through a floating shaft, and the main reducer drives the rotor and tail rotor after deceleration. The transmission shaft and circuit of the main reducer are provided with quick-release connectors, which are convenient for quick disassembly and replacement.
The power plant UH- 1B is equipped with T53-L- 1 1 turboshaft engine of Aavikko Lycumming Company of the United States, with a takeoff power of 820kW.
Full set of all-weather flight instruments for electronic equipment, multi-channel high-frequency transceiver, omnidirectional indicator and instrument landing indicator for heading and relative position of fuselage and glide slope, VHF beacon receiver, C-4 navigation compass, 12.7 cm all-attitude flight indicator.