The purpose of the pitch change cams is to
- convert rotary motion to linear motion.
- prevent windmilling.
- convert linear motion to rotary motion.
Explanation
The pitch-change cams (cam gears) translate the linear travel of the pitch-change piston into rotation of the blades in the hub, turning them to a new angle. Without the cams the piston's straight-line motion could not be turned into the rotary blade movement required to change pitch.
mwongela asking:
is it not for changing rotary to linear?
Community Comments (3)
D
dimky Posts: 514 06.12.2012 / 18:54
No. Linear to rotary. Check this video: http://www.youtube.com/watch?v=DkHlOt2onB4
M
mwongela Posts: 18 06.12.2012 / 19:22
thanx alot.
J
Jordi Posts: 198 18.06.2020 / 13:09
the video link is unavailable
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