Lynxes, Tigers and Cheetahs come and go at most airports (even in broad daylight). Plane spotters make far fewer sightings of another member of the feline family of fliers: the Gulfstream American GA-7 Cougar. You won’t have trouble picking this stray cat out of the litter when it shows up at the field. Lines suggest a distinctly tigerish appearance, but the Cougar adds six feet of length to that fundamental form. Most distinctive is that this rare (not extinct) cat claws its way to cruise altitude on twin 160-horsepower engines.