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` = Delta(vec( alpha ^o & "AS" ) , vec( beta ^o & "WS" ))`

Enter a value for all fields

The **Flight Navigation Correction Angle** calculator computes the navigation angle/azimuth correction angle (Δ) using the wind speed (WS), wind direction (β), Flight Heading (α) and an Air Speed (AS).

*Correction angle parameters*

**INSTRUCTIONS:** Choose units and enter the following:

- (
**α**) Flight Angle(azimuth) - (
**AS**) Air Speed - (
**WS**) Wind Speed - (
**β**) Wind Direction

**Navigation Correction Angle (Δ): ** The calculator returns the angle in degrees. However this can be automatically converted to compatible units via the pull-down menu.

**Correction Angle**: Computes the navigation angle/azimuth correction angle using the wind speed, wind direction, flight heading and an Air Speed.**Ground Speed:**Computes the ground speed based on the wind speed, wind direction, a Flight Heading and an Air Speed.**Haversine - Distance**: Computes the distance between two points on a spherical model of the Earth along a great circle arc. This also includes the rhumb line distance and azimuth for the rhumb line.**Travel Time between Coordinates**: Computes the time to travel between to points on the globe in a great circle arc at an average velocity.**Distance to Sea Level Horizon at Altitude**: Computes the distance to the horizon from a specified height using a spherical model the mean spherical radius of the Earth**Force of Drag**: Calculates the resisting force of drag on an object flowing through a medium (e.g. air).**Force of Lift**: Computes the lifting force on the surface area of a wing based on the wing surface area, air flow velocity, density of air and a lift coefficient.**Lift Coefficient**: Compute the lift coefficient of a wing based on lift force, wing surface area, wind speed and density of air.**Velocity Needed for Takeoff**: Computes the velocity required to create more lift than the weight of an aircraft or watercraft using a wing (e.g. hydrofoil).**Glide Ratio**: Computes the glide ratio based on the change in forward distance and the change in altitude.**Wing Surface Area**: Computes the wing surface area required to achieve lift, base on a lift coefficient, lift force, wind speed and density of air.**Velocity of Air over the Wing**: Computes the velocity required to achieve a lift, based on lift coefficient, lift force, wing surface area and density of air.

**Bruce Number**: Computes the ratio of the square root of sail area to the cube root of displacement of a sail boat**Sail Area / Displacement Ratio**: Compute SA/D ratio for sail boats.**Displacement-Length Ratio**: Computes a metric to describe how heavy a boat is in relation to its waterline.**Capsize Screening Formula**: Computes a metric to describe a boat's stability in rough seas.**Vessel Displacement Volume**: Computes the cubic feet displacement associated with the weight displacement.**Weight of Seawater**: Computes the weight and mass of a volume of seawater.**Time to Sink**: Compute the time it takes for a breach (water in) to surpass the displacement of the boat.**Haversine Distance (decimal degrees)**: Compute the Distance Between two Points on the Earth (Great Circle Arc)**Haversine Distance (Degrees, Minutes and Seconds)**: Compute the Distance Between two Points on a Sphere (Great Circle Arc) using degrees, minutes and seconds verses decimal degrees.**Rhumb Line Azimuth**: Computes the azimuth heading one can navigate for a path that crosses all meridians of longitude at a constant angle.**Rhumb Line Distance**: Computes the distance traveled between two points on the globe if traveled via a rhumb line.**Correction Angle**: navigation equation that compensates for air or water currents.**Decimal Degrees**: Compute decimal degree angles from degrees, minutes and seconds,**[CLICK HERE]**.**Nautical Travel Cost**: Computes the total cost to travel a distance based on the cost rate and distance traveled.**Travel Time between Coordinates:**Compute the time to travel between two location (latitudes and longitudes) based on a average speed**Distance to Sea Level Horizon**: Computes the distance to the horizon from a specified height using a spherical model the mean spherical radius of the Earth

The Navigation Correction Angle formula calculate the course correction angle needed to compensate for wind of a certain bearing and at a certain velocity in order to continue at the desired heading. This is done with vector arithmetic.