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DUAL ANGLE DIHEDRAL CHOCK

IP.com Disclosure Number: IPCOM000239690D
Publication Date: 2014-Nov-25
Document File: 2 page(s) / 132K

Publishing Venue

The IP.com Prior Art Database

Abstract

The proposal is a chock used to prop the aircraft for ground operations at the airport. The chock is a dual dihedral angle and includes one contaminated side and one non-contaminated side. A movable indicator (such as a flag) is also proposed to help the user install correctly the chock. This chock allows an efficient chocking of the aircraft for both dry & contaminated ground conditions.

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DUAL ANGLE DIHEDRAL CHOCK

The proposal is a chock used to prop the aircraft for ground operations at the airport. The chock is a dual dihedral angle and includes one contaminated side and one non- contaminated side. A movable indicator (such as a flag) is also proposed to help the user install correctly the chock.

This chock allows an efficient chocking of the aircraft for both dry & contaminated ground conditions.

Description

Wheel chocks are pieces of material placed afterward and forward of landing gear wheels to prevent unintended movement of the aircraft. They have to be put in place when the aircraft arrives at the gate and is completely stopped. On the operational side, it is also recommended to install the wheel chock close to the tire, without touching it, as weight variations (E.g. during cargo and fuelling operations) can affect the wheelbase and cause the front tire to catch the chock.

During some ground operations, chocks are unable to provide adequate restraint such is the case during severe wind conditions or contaminated aprons (E.g. ice). Unsafe ground handling of aircraft and associated activities have resulted in serious personnel injuries, flight delays and in some cases substantial damage to the aircraft.

Some existing standard provide functional aspects and considerations on design and use of wheel chocks, but does not give any design recommendation, especially on chock shape according to environmental conditions.

Considering the driving pa...