A JavaScript utility library focusing on aviation.
Test can be run eith by:
npm test
; or
mocha test
Via Github's Travis. Runs tests (mocha) and linter (jshint)
fly.distanceTo(58.2, 0, 53.3, -1.2, 2);Returns the distance between the two pairs of decimal latitude and longitude values in nautical miles to two decimal places (last parameter).
fly.trueCourse(53.0, 0, -9.3, 53, 2);Returns the initial course between the two pairs of decimal latitude and longitude values in degrees to two decimal places (last parameter).
fly.enroute(34.6169641, 118.400009, 66, 100, 2);Returns a new position given true course and distance from a given point
fly.intersectionPoint(53.583378, -0.34851, 180, 51.150837, -0.177416, 15);Returns the position the two great circles intersect; using the pair of latitude, longitude and course values as radials
fly.nauticalMilesTo('Kilometres', 100000, 5);Returns 10000 nautical miles converted to Kilometres rounded to five decimal places.
fly.nauticalMilesTo('Miles', 100000, 5);Returns 10000 nautical miles converted to Miles rounded to five decimal places.
fly.nauticalMilesTo('Feet', 100000, 5);Returns 10000 nautical miles converted to Feet rounded to five decimal places.
fly.nauticalMilesTo('Metres', 100000, 5);Returns 10000 nautical miles converted to Metres rounded to five decimal places.
fly.nauticalMilesTo('Inches', 100000, 5);Returns 10000 nautical miles converted to Inches rounded to five decimal places.
fly.nauticalMilesTo('Centimetres', 100000, 5);Returns 10000 nautical miles converted to Centimetres rounded to five decimal places.
fly.milesTo('Kilometres', 100000, 5);Returns 10000 miles converted to Kilometres rounded to five decimal places.
fly.milesTo('Nautical Miles', 100000, 5);Returns 10000 miles converted to Miles rounded to five decimal places.
fly.milesTo('Feet', 100000, 5);Returns 10000 miles converted to Feet rounded to five decimal places.
fly.milesTo('Metres', 100000, 5);Returns 10000 miles converted to Metres rounded to five decimal places.
fly.milesTo('Inches', 100000, 5);Returns 10000 miles converted to Inches rounded to five decimal places.
fly.milesTo('Centimetres', 100000, 5);Returns 10000 miles converted to Centimetres rounded to five decimal places.
fly.kilometresTo('Miles', 100000, 5);Returns 10000 kilometres converted to Miles rounded to five decimal places.
fly.kilometresTo('Nautical Miles', 100000, 5);Returns 10000 kilometres converted to Nautical Miles rounded to five decimal places.
fly.kilometresTo('Feet', 100000, 5);Returns 10000 kilometres converted to Feet rounded to five decimal places.
fly.kilometresTo('Metres', 100000, 5);Returns 10000 kilometres converted to Metres rounded to five decimal places.
fly.kilometresTo('Inches', 100000, 5);Returns 10000 kilometres converted to Inches rounded to five decimal places.
fly.kilometresTo('Centimetres', 100000, 5);Returns 10000 kilometres converted to Centimetres rounded to five decimal places.
fly.mpsTo('Knots', 233, 2);Returns 233 miles per hour converted to Knots rounded to two decimal places.
fly.mpsTo('KilometersPerHour', 233);Returns 233 miles per hour converted to km/h.
fly.beaufortLookup(45);Returns beaufort description of a 45 knot wind e.g. 'Strong Gale'
fly.beaufortLookup(25);Returns beaufort force index of a 25 knot wind e.g. 6
fly.beaufortLookup(15, 'all');Returns beaufort force, description and range of a 15
flyjs.CardinalWindDirection(180);Returns "S" (South) the cardinal direction for a wind at 180 degrees
fly.wakeLookup(4500);Returns the ICAO wake category for an aircraft of 4500kg
fly.HeadWindCalculator(25, 180, 215, 2);Returns head wind component, given wind speed (knots), wind direction and aircraft direction (later pair both measured in degrees). Rounded to 2 decimal places.
fly.CrossWindCalculator(25, 180, 215, 2);Returns cross wind component, given wind speed (knots), wind direction and aircraft direction (later pair both measured in degrees). Rounded to 2 decimal places.
flyjs.calculateCourseAndGroundSpeed(120, 80, 43, 133, 2);Returns course and ground speed, given trueAirSpeed, heading, windSpeed and windDirection, rounded to 2 decimal places.
flyjs.calculateHeadingAndGroundSpeed(120, 60, 43, 133, 2);Returns heading and ground speed, given trueAirSpeed, course, windSpeed and windDirection, rounded to 2 decimal places.
flyjs.calculateWindSpeedAndDirection(trueAirSpeed, groundSpeed, course, heading, 2);Returns wind speed and direction, given trueAirSpeed, groundSpeed, course and heading, rounded to 2 decimal places.
One-man-band at the moment. Contact me at twitter on @rayhammond, or, via my blog here http://geeksretreat.wordpress.com if you are interest in getting involved.
MIT