Offers online flight planning, sectional charts, and weather outlooks.

Aviation VFR and IFR Charts. Sectional and Terminal Charts. NOS Low Altitude Enroute Charts and Approach Plates.

Airports directory with flight plan calculator. Computes distance, track, heading, ground speed and time en route between US and Canadian locations.

Introduction to the mathematical processes used in navigation including great circle navigation theory.

Exists to ensure the provision of air navigation services for civil aviation communities worldwide.

JavaScipt calculator for pilots. Determines density altitude from the altitude, air temp, altimeter setting and relative humidity.

Formulas and on line calculators for aviation navigation.

Provides online flight planning and submission. Includes flight navigation log (printable) for generation of computed flight plans, Java applets for the calculation of wind correction and ground speed, mass and balance, density altitude, flight level, cross wind component and other aviation related calculations.

Flight log in Excel. Calculates heading, distance and time based on entered waypoints.

Flycalc is a web based, navigation tool for New Zealand based flight plans.

A full-sized plotter that tri-folds into shirt-pocket size that features a course line that extends the entire length so you can measure true course from lines of latitude or longitude on the chart. Includes scales for WAC, Sectional and TCA charts calibrated in nautical miles, statute miles and kilometers.

Publisher of flight information, supported by computer flight planning services, aviation weather services, and aviation training systems.

Aeronautical navigation lessons for a beginner. Provides the lessons with graphics. Available in Dutch and English.

Provides aeronautical information services including let down plates and aviation warnings. Free registration required.

Provides navigation services like air traffic control, weather information and many other services.

Free UK NOTAM plotting software for private pilots. Download, features and user guide. Limited features in free version.

Source for the electronic Airport Facility Directory, approach plates, the FARs and the AIM.

Shareware flight planning and moving map solution for PC and pocket PC. Instructions and downloads.

A FAA facility providing weather briefings, flight planning assistance, and aviation information crucial to flight.

Flight planning for the private & student pilot made easy. QuDieM Navigator wind computer and free on-line aircraft bookings.

If you have an interest in navigation in its broadest terms - from aircraft Cat III landings though sailing for pleasure to orientation strategies with young children, then you should consider membership of the RIN.

Non-profit professional society dedicated to the advancement of the art and science of navigation.

Aviation Sectional maps for educational purposes. Not to be used for flight planning or in-flight navigation.