Helicopter Gearbox Systems Overview

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Questions and Answers

Which components are part of the transmission system? (Select all that apply)

Tail gear box (correct)
Auxiliary gear box (correct)
Propeller
Engine
Main gear box (correct)
Intermediate gear box (correct)

What does MGB stand for?

Main Gear Box

The tail rotor drive shaft transmits power directly from the engines.

False (B)

The anti-resonance isolation system is abbreviated as _____ .

<p>ARIS</p> Signup and view all the answers

What are the key areas in which the power from the MGB is used?

<p>Hydraulic-pump drive, alternator drive, lubricating pump drive</p> Signup and view all the answers

Study Notes

Power Transmission Overview

Engine power is combined in the main gearbox (MGB) for transmission to the main rotor.
The tail rotor drive shaft is powered by the MGB, using flexibly coupled shafts.

Gearbox Configuration

The transmission system includes:
- Main Gear Box (MGB)
- Auxiliary Gear Box
- Intermediate Gear Box
- Tail Gear Box
- Tail Drive Shaft
- Anti-Resonance Isolation System (ARIS)

Accessory Drives

Power from the MGB drives various accessories on the left-hand (LH) and right-hand (RH) sides, including:
- Hydraulic pump
- Alternator
- Lubricating pump

Other Key Points

The transmission arrangement is complex, ensuring efficient power distribution across various components.
Each subsystem plays a critical role in maintaining functionality and stability in rotor operations.

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Description

This quiz delves into the mechanics of helicopter gearbox systems. Explore how power is transmitted from the main gearbox to the main rotor and tail rotor, as well as the critical components involved in these systems. Test your understanding of key concepts and terminology associated with helicopter engineering.