During the course of the two-minute film, Sophie's FMX is hit by the swinging load
of a mobile crane, subjected to a 360[degrees] rollover, and driven through a breezeblock building.
The following assumptions are made for modeling the quadrotor with a swinging load.
These assumptions are considered to be sufficient for the realistic representation of the quadrotor with a swinging load system which is used for a nonaggressive trajectory tracking.
and the swinging load's kinetic energy can be attained as
To mitigate the hazard of a swinging load
, the ship remained at "amber" deck for the entire evolution.
A 5,000-pound-plus swinging load
on a 17,000-pound helicopter definitely is noticeable and uncomfortable.
The HAC struggled to bring the aircraft under control while he dealt with spatial disorientation induced by the lack of visible horizon and the swinging load. The desert terrain provided no horizon as a reference.
Meanwhile the crew chiefs monitored the fuel bladders and provided a verbal description of the swinging load. The crew chief's role was crucial as the pilots struggled to get the aircraft under control.
The loader's activities included swinging empty, grappling, and swinging loaded. The swinging empty cycle began when the arm swung away from the dump truck bed and stopped when it made contact with material.
The total delay-free time recorded consisted of collecting (48%), grappling material (21%), swinging loaded (18%), and swinging empty (13%).