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19 cze 2020 · If you are flying at 100 knots true airspeed in a zero wind condition, nautical ground miles will equal nautical air miles. However, if you are flying at 100 knots true airspeed into a 100 knot headwind, your nautical ground miles will alway be zero, regardless of how many nautical air miles you fly for (at 100 knots).
5 maj 2017 · I'm looking for a formula to calculate the horizontal distance (guess it is the Ground Distance) passed during the phase of ascent (or descent), having the rate of climb in ft/min and the TAS in knots.
Get all ATPL formulas for Flight Planning and Monitoring and 5 other ATPL subjects with explanation and example calculations in e-books.
Draw you flight path on a map and calculate the great circle distance in nautical miles and kilometers. Get estimated flight time by choosing an aircraft type or entering the cruising speed.Click in the large textfield above to enter all the airports of your flight route!
You can measure beam width in flight by looking for the range of the (first) ground return from altitude for a given search angle, e.g.: At 30,000ft, tilt -1 deg, if first ground return is 100 miles, beam width is +/-2 deg (lower edge of the beam is tilted -3 degrees).
Performance numbers can be derived from charts, tables, or manually crunching the numbers yourself to predict aircraft performance.
This was simplified to an approximation of: Ground miles = 1.3 (air miles). The approximation equation yielded an answer within 1 mile of the regression equation for distances up to 40 air miles.
