What must be checked before loading large freight onto an aircraft?

The requirement to check weight and balance before loading large freight onto an aircraft is essential for ensuring safe flight operations. Aircraft have specific weight limits and balance parameters that must be adhered to in order to maintain the aircraft's stability during flight. Loading heavy cargo improperly can lead to an unbalanced condition, which can cause difficulties in controlling the aircraft or even result in a dangerous situation during takeoff, flight, or landing.

Weight considerations involve calculating the total weight of the aircraft, including cargo, fuel, and passenger weights, to ensure it falls within allowable limits. Balance checks involve distributing the cargo in a manner that maintains the center of gravity within permissible limits. Failure to consider these factors can lead to significant safety risks, which is why weight and balance assessments are a fundamental part of the ramp operations before loading large freight.

Other options, although relevant in different contexts, do not directly impact the immediate safety and performance aspects related to aircraft loading.