24-1526-100

End hinged tail shaft section 24-1526-100

24-1526-100 is an end hinged section of the tail transmission shaft used on Mi-family helicopters as part of the 8A-1516-000 drive line. The component works in the tail rotor transmission path and transfers torque toward the tail gearbox. Its hinged construction allows the shaft line to compensate for alignment deviations, structural flexing and vibration that occur along the tail boom during helicopter operation. In the complete transmission system, this section works together with rigid shaft sections, other hinged elements, support points, flanged joints and gearbox interfaces.

Torque transfer through the 24-1526-100 end section

The 24-1526-100 section transmits torque as part of the tail drive shaft line between the intermediate gearbox and the tail gearbox. From there, power is transferred to the tail rotor for directional control. During operation, the shaft system rotates at high speed and is exposed to torsional loads, dynamic vibration and movement of the airframe structure. The end hinged section must keep torque delivery continuous while allowing limited movement at the connection point. This helps reduce stress on adjacent shaft elements and supports stable operation of the tail rotor drive.

24-1526-100 as a flexible coupling element

The 24-1526-100 works as a flexible coupling section within the tail transmission system. Its role is to compensate for angular deviation, small axial displacement and structural movement that may appear during flight, ground running or maintenance-related alignment changes. This function is important because the tail boom and the shaft line are long structures, and small deviations can accumulate across the complete assembly. A properly installed hinged end section helps maintain smooth rotation, limits vibration transmission and protects connected components from unnecessary mechanical loading.

Position of 24-1526-100 in the 8A-1516-000 shaft line

The 24-1526-100 is not a complete tail drive shaft by itself. It is one member of the 8A-1516-000 shaft line and should be treated as part of the full tail drive assembly. This matters for procurement and repair, because the complete system includes several shaft sections with different positions and functions. The end hinged section has its own interfaces and installation role, so it should not be replaced by another shaft element only on the basis of visual similarity. The designation, assembly reference and actual helicopter configuration must be checked before installation.

Application of the 24-1526-100 section on Mi helicopters

The 24-1526-100 end hinged tail shaft section is installed across Mi-8 family variants and related Mi-series helicopters. Typical applicability includes Mi-8, Mi-8MT, Mi-8MTV, Mi-17, Mi-171 and Mi-14, depending on the aircraft documentation and installed tail drive system. Since these helicopters may differ by modification, production series, overhaul history and transmission layout, applicability should be confirmed by the parts catalog and the actual shaft arrangement. This is especially important when supplying parts for overhaul, service replacement or completion of a shaft assembly kit.

Identification and ordering of 24-1526-100

The same end hinged shaft section may be referenced under several equivalent designations: 24-1526-100, 241526100 and 24.1526.100. These references identify the same component, but an order should still confirm the aircraft type, assembly number, condition, documentation and supply scope. If the section is required as part of a complete kit, the included flanged hardware and related mounting parts should be clarified separately. For correct supply, it is useful to specify whether the request is for an individual 24-1526-100 section or for a wider 8A-1516-000 tail drive assembly package.

Product Type: End hinged tail transmission shaft section
Designation: 24-1526-100
Alternative Designations: 241526100, 24.1526.100
Function: Torque transmission with compensation of misalignment, flexing, displacement and vibration
Application / Where Used: Mi-series helicopter tail rotor transmission systems
System / Installation Area: Tail transmission between intermediate gearbox and tail gearbox
Compatible Aircraft / Equipment: Mi-8, Mi-8MT, Mi-8MTV, Mi-17, Mi-171, Mi-14 helicopters
Assembly Role: Member of the 8A-1516-000 tail drive shaft line
Transmission Path: Tail boom shaft system transmitting torque toward the tail gearbox and tail rotor
Mounting: Flanged interface with associated hardware, depending on kit composition
System Rotational Speed: Approx. 2589 rpm
Functional Role: Flex, displacement and vibration absorption in the tail shaft line
Material: Structural alloy component
Condition: As applicable
Documentation: 8A-1516-000 passport, Z.I.P. list, spare parts manifest, aircraft maintenance documentation

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