The standard in manual E6Bs
 
The classic E6B flight computer, valued by generations of pilots for computing weight and balance, fuel burn, wind correction angle and much more. Unlike cardboard or plastic models, this high quality aluminum E6B from ASA won’t bend, warp or wear out, even after years of use. Includes a °C/°F conversion scale as well as mileage scales for measuring distance on Sectional charts. Standard wind grid is on the reverse side. Vinyl case and instructions are included. Measures 9.5” x 4.75”. (ASA part #E6B)
 
Whiz wheel style calculators have been around from the 1930s. This model from ASA is a student pilot favorite and can be used on FAA tests.