Correctly banked level turns Flashcards
How is an a/c correctly banked
the a/c is rolled about the forward axis - banking
What is the equation linking bank angle and velocity
V^2
tanθ = ———–
g*R
where R is the radius of the turn in metres
What is the relationship between bank angle and velocity, and bank angle and turn radius
θ is proportional to V^2
θ is inversely proportional to R
Equation for load factor
Lift generated in turn
N = ——————————— = sec θ
weight
Why is calculating the load factor important
N is important when assessing the stress on an a/c
What is a good estimate for the max load factor of an airliner and a fighter
airliner - 2.5
fighter - 6-8+
What is the equation linking radius of the turn, load factor and velocity
V^2
R = ———————-
g* √ (N^2 - 1)
How should the plane be flown to achieve the minimum turn radius
fly at Cl(max). Therefore very close to stall
Equation for the rate of turn, w
V
w = —–
R
What should the turn speed be for an a/c travelling at V m/s and wishing not to lose altitude during the turn
Vt = V * √ (N)