Description

This little ruler has all kinds of useful information on it. It can be used to measure distances on a sectional in nautical miles, statute miles, or kilometers. To assist in deciphering weather information, it can be used to convert between °F and °C, pressure and altitude, zulu to standard time, and to predict the probability and strength of thunderstorms based on the K-index and the lifted-index. It also includes a chart to help determine wind speed from the trace of a handheld GPS, and a graph to convert indicated airspeed to true airspeed based on altitude