THE EFFECTS OF DARKNESS ON HUMAN PERCEPTION

Both to earn your daylight waiver and to operate safely at night once you have obtained it, you and your flight crew must learn to recognize the issues of perception and physiology that affect human eyesight in darkness. This is valuable information, which would seem like the perfect subject for a standard reference book for pilots—both crewed and uncrewed.

Well, I have some good news for you. That book has already been published. It’s entitled “The Pilot’s Handbook of Aeronautical Knowledge” and, better still, you have already paid for a copy. Created with taxpayer dollars by the FAA, it is available to download, for free, in .PDF format. Just