In this example we set n = 1 and repeat for each portion of the blade. So x
will be replaced by λ
r
and f (x) = λ
3
r
a
′
(1 − a) for each element. The calculation of
power coefficient is shown in Table 5. The power coeficient is around 0.55 - which
is quite high but no account has been made of tip losses or the influence of drag