In Webster's next to the definition of workhorse, there should be a picture of the BK117. Thanks to its rugged construction features, large rear clamshell doors, large cabin volume and multi-mission capabilities, it's designed to make quick work of the most difficult tasks. Plus, when you consider its responsive advanced hingeless rotor system, excellent visibility and compact external dimensions for easy navigation, the BK117 can fly in and out of tight landing zones where other medium twin helicopters have difficulty. All of which makes it one markedly useful and durable machine.