Provided is a helmet suspension system which is configured to mitigate rapid movements, i. The method includes providing an imaging tool having a field of view, and creating a target pattern containing a regular array of symmetric sub-patterns having locations spanning the FOV. The drill string comprising a fluid passage at least partially disposed within the body. Moreover, the user interface component may also be configured to incorporate a retrieve progress display element that indicates a current status of a retrieve operation for a record. An electric current generated during a lightning strike is diverted with low resistance from the electrical unit via the rear plate and the mounting plate onto the fuselage of the aircraft.