The APR E6-B9 Flight Computer Whiz Wheel by Aero Products Research from 1973 is a valuable aviation collectible. This unique tool was designed to assist pilots in calculating flight-related calculations quickly and efficiently. Its vintage design and functionality make it a sought-after item for aviation enthusiasts and collectors alike. The Whiz Wheel offers a glimpse into the history of aviation technology and serves as a functional piece of nostalgia for those interested in transportation and aerospace memorabilia.