Originally Posted by
Smythe
Sorry, I am confused. In helo ops HAL is height above landing, what are you referencing in this regard?
A certain poster would have called HAL "the magic" in his famous mantra. From Wikipedia:
HAL 9000 is a fictional character and the main antagonist in Arthur C. Clarke's Space Odyssey series. First appearing in the 1968 film 2001: A Space Odyssey, HAL (Heuristically programmed ALgorithmic computer) is a sentient computer (or artificial general intelligence) that controls the systems of the Discovery One spacecraft and interacts with the ship's astronaut crew.
https://en.wikipedia.org/wiki/HAL_9000