Remote engine nacelle latching system — A380
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The Problem
To develop a self supporting remotely operated latching system that is designed to secure the Airbus A380 Aft Core Cowl at both the 6 o’clock and 12 o’clock positions. The latching system must be designed for long life, high reliability and a minimum cost and weight.

The Solution

Hartwell’s remotely operated pin/hook latch system provides a way to quickly latch and unlatch the A380 Aft Core Cowl. The self supporting tie rod/pin latch assembly ensures that the latch will always return to the
position required to re-latch the nacelle for flight. The system is operated
from a single handle that also acts as a standard ultra low profile hook latch
at the 6 o’clock position.

In addition to the convenience of operating the latching system, the design is incorporated with unique safety features:

● The system prevents the handle assembly from being closed and locked unless the nacelle is first secured and with the tie rod in place and the keeper for the latch in the “6 o’clock” position is installed properly.

● During flight the nacelle is held closed by the system’s latch in the “6 o’clock” position while the latch in the “12 o’clock” position is designed to carry either compression or tension loads, as required during normal flight or critical engine conditions.

The Benefits
In addition to solving all of the customer’s complex and safety requirements Hartwell’s design uses minimum possible number of moving components.

For More Information
For more information on this product and other examples of Solutioneering® at work, contact Hartwell Corporation
at 1.714.993.4200.

© 2012 Hartwell Corporation
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