Vinay Mishra
Indian Institute for Aeronautical Engineering and Information Technology (IIAEIT), Pune
Vinay Mishra has created this Calculator and 300+ more calculators!
Shikha Maurya
Indian Institute of Technology (IIT), Bombay
Shikha Maurya has verified this Calculator and 100+ more calculators!

4 Other formulas that you can solve using the same Inputs

Angle of attack at the tail
Horizontal tail angle of attack=Wing angle of attack-Wing incidence angle-Downwash angle+Tail incidence angle GO
Angle of attack of the wing
Wing angle of attack=Horizontal tail angle of attack+Wing incidence angle+Downwash angle-Tail incidence angle GO
Angle of incidence of wing
Wing incidence angle=Wing angle of attack-Horizontal tail angle of attack-Downwash angle+Tail incidence angle GO
Angle of incidence of tail
Tail incidence angle=Horizontal tail angle of attack-Wing angle of attack+Wing incidence angle+Downwash angle GO

Downwash angle Formula

Downwash angle=Wing angle of attack-Wing incidence angle-Horizontal tail angle of attack+Tail incidence angle
ε=α<sub>w</sub>-𝒊<sub>w</sub>-α<sub>t</sub>+𝒊<sub>t</sub>
More formulas
Angle of attack at the tail GO
Angle of attack of the wing GO
Angle of incidence of wing GO
Angle of incidence of tail GO
Total Lift of wing-tail combination GO
Lift due to wing only GO
Lift due to tail only GO
Total Lift Coefficient of wing-tail combination GO
Wing Lift Coefficient of wing-tail combination GO
Tail Lift Coefficient of wing-tail combination GO
Tail Efficiency for given lift coefficients GO
Tail area for given tail efficiency GO
Pitching moment due to tail GO
Tail lift for given tail pitching moment GO
Tail Pitching moment for given lift coefficient GO
Tail lift coefficient for given pitching moment GO
Tail Pitching moment coefficient GO
Tail Pitching moment for given moment coefficient GO
Mean aerodynamic chord for given tail pitching moment coefficient GO
Vertical tail moment arm for given yawing moment coefficient GO

What causes downwash?

The more air that a wing diverts down, the more lift it can produce. A huge column of air moves almost straight down relative to the ground. This is the downwash created by the wings of the jet resulting in an opposing lift force.

How to Calculate Downwash angle?

Downwash angle calculator uses Downwash angle=Wing angle of attack-Wing incidence angle-Horizontal tail angle of attack+Tail incidence angle to calculate the Downwash angle, The Downwash angle is the sum of angle of attack of wing and tail incidence angle minus the sum of wing incidence angle and tail angle of attack. Downwash angle and is denoted by ε symbol.

How to calculate Downwash angle using this online calculator? To use this online calculator for Downwash angle, enter Wing angle of attack w), Wing incidence angle (𝒊w), Horizontal tail angle of attack t) and Tail incidence angle (𝒊t) and hit the calculate button. Here is how the Downwash angle calculation can be explained with given input values -> 0.772 = 0.09-0.078-0.1+0.86.

FAQ

What is Downwash angle?
The Downwash angle is the sum of angle of attack of wing and tail incidence angle minus the sum of wing incidence angle and tail angle of attack and is represented as ε=αw-𝒊wt+𝒊t or Downwash angle=Wing angle of attack-Wing incidence angle-Horizontal tail angle of attack+Tail incidence angle. Wing angle of attack is the angle of attack of the wing of an aircraft, Wing incidence angle is the angle between the chord of wing and fuselage reference line, The Horizontal tail angle of attack is the angle of attack of the horizontal tail of an aircraft and Tail incidence angle is the angle between the reference chord of the horizontal tail and the fuselage reference line.
How to calculate Downwash angle?
The Downwash angle is the sum of angle of attack of wing and tail incidence angle minus the sum of wing incidence angle and tail angle of attack is calculated using Downwash angle=Wing angle of attack-Wing incidence angle-Horizontal tail angle of attack+Tail incidence angle. To calculate Downwash angle, you need Wing angle of attack w), Wing incidence angle (𝒊w), Horizontal tail angle of attack t) and Tail incidence angle (𝒊t). With our tool, you need to enter the respective value for Wing angle of attack, Wing incidence angle, Horizontal tail angle of attack and Tail incidence angle and hit the calculate button. You can also select the units (if any) for Input(s) and the Output as well.
Share Image
Let Others Know
Facebook
Twitter
Reddit
LinkedIn
Email
WhatsApp
Copied!