The movie is based on the book, âJumanji,â by Chris van Allsburg. Many of the scenes of this movie were indeed filmed in New Hampshire in November of 1994â some in the town of Keene in the Monadnock region.
According to Air Canada, a fin number is a three-digit number on the tail of the aircraft. Aircraft â like cars â have some form of identification; in this case, the fin number is like a license plate for planes.
The Mach number is a ratio between the aircraft's speed (v) and the speed of sound (a). That is, M = v/a. The Mach number is named for the Austrian physicist, Ernst Mach (1838-1916). Technically, as you can see, the Mach Number is not a speed but a speed ratio.