Parameters of a Parabolic Projectile from an elevation Calculator
This CalcTown calculator calculates the parameters (i.e time of flight, range and maximum height) of a point object projected from an elevation above the ground.
Parameters of a Parabolic Projectile from an elevation Calculator

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where
T=Time of Flight
R=Range of trajectory
H=Maximum Height reached by the point object
θ=Angle made by the projectile with the horizontal
y0=Initial height from which the projectile was launched