Correction Angle

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.

Flight and Navigation Calculators

• 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.
• Air Speed from Pressures: It uses the Bernoulli Equation to estimate air speed based on the total Pressure measured by a pilot tube, total Static local atmospheric pressure and the Density of Air.
• Center of Mass: Computes the vehicle center of mass between two loads (masses).

Sailing and Navigation Calculators:

• 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 Math / Science

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.