Photo showing a ULD loader lifting a <a href="https://en.wikipedia.org/wiki/ULD" class="extiw" title="en:ULD">ULD</a> from apron dollies level to aircraft cargo bay level. Unit Load Device (ULD) is standardized size air cargo container. All are apron <a href="https://en.wikipedia.org/wiki/Ground_support_equipment" class="extiw" title="en:Ground support equipment">Ground support equipment</a>.
<a href="//commons.wikimedia.org/wiki/User:Jamesshliu" title="User:Jamesshliu">Jamesshliu</a>
CC BY-SA 3.0
Taken from Hong Kong International Airport