UNLIMITED FREE ACCESS TO THE WORLD'S BEST IDEAS

close
Already an Engineering360 user? Log in.

This is embarrasing...

An error occurred while processing the form. Please try again in a few minutes.

Customize Your Engineering360 Experience

close
Privacy Policy

This is embarrasing...

An error occurred while processing the form. Please try again in a few minutes.

EUROCAE - ED-91

AIRCRAFT LIGHTNING ZONING

inactive
Organization: EUROCAE
Publication Date: 1 July 1998
Status: inactive
Page Count: 94
scope:

This document defines lightning strike zones and provides guidelines for locating them on particular aircraft, together with examples. The zone definitions and location guidelines described herein are applicable to Parts 23, 25, 27, and 29 aircraft and rotorcraft. The zone location guidelines and examples are representative of inĀ¬ flight lightning exposures. Aircraft may also experience lightning strikes while parked on the ground, In which case some lightning strike zones may differ from those applicable in flight.

PURPOSE

This document is one of a set of three covering the whole spectrum of aircraft interaction with lightning. The purpose of this document is to provide information to determine the lightning attachment zones which is referred to as Lightning Zoning. The two other documents provide advisory material on the aircraft lightning environment (Ref. 1.4.1), and aircraft lightning testing {Ref. 1.4.2). The relationship between the three documents is shown in Figure 1-1. This set of documents may be used to define the aircraft lightning threat and tests required to support the aircraft lightning protection certification.

Lightning zoning is a functional step in demonstrating that the aircraft is adequately protected from both direct and indirect effects of lightning. The purpose of lightning zoning is to determine the surfaces of the aircraft which are likely to experience lightning channel attachment and the structures which may experience lightning current conduction between pairs of entry/exit points.

Zoning should be used with the aircraft hazard assessment to determine the appropriate protection for a given aircraft part or location. To determine the appropriate protection for parts and structure in a particular lightning zone, the criticality of the systems or structure in the zone should be considered.

Document History

January 1, 2019
AIRCRAFT LIGHTNING ZONING
This EUROCAE ED / SAE Aerospace Recommended Practice (ARP) defines lightning strike zones and provides guidelines for locating them on particular aircraft, together with examples. The zone...
ED-91
July 1, 1998
AIRCRAFT LIGHTNING ZONING
This document defines lightning strike zones and provides guidelines for locating them on particular aircraft, together with examples. The zone definitions and location guidelines described herein...

References

Advertisement