sin αst

ROTOR
54
The three sides of the template are
clamped onto the blade root and the
holes are drilled. The feed should fit the
rpm when the holes are drilled to pre-
vent rough holes, as a smooth hole will
increase the embedding strength limit.
To prevent non-uniform bearing of the
bolt, the holes should fit the bolts, so that
they may be inserted by tapping slightly
with a mallet [30, p. 7-16].
The position of the trailing and the lead-
ing edge is marked. The blade is subse-
quently designed so the leading and the
trailing edges are parallel to the y-z-
plane. The airfoil is then divided into 9
(or more) equally sized sections.
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