The best slide-rule-style flight computer on the market, now enhanced with colorfor even easier readability. On the circular side, black is used for the rate arrow and units to be calculated; Red is used for weight and volume; Blue is used for distance, time and temperature scales. On the wind side, colors are used to identify wind variation: blue identifies west (or right wind correction angle) and red identifies east (or left wind correction angle). The ASA-E6B-COLOR is identical in size to the ASA-E6B, made with the same solid aluminum construction and featuring all the functionality pilots have relied on for decades. Vinyl case and instruction booklet included.