PPRuNe Forums - View Single Post - Phase Angle - What is it??
View Single Post
Old 19th Jun 2006, 01:20
  #1 (permalink)  
gwelo shamwari
 
Join Date: May 2006
Location: Europe
Age: 45
Posts: 107
Likes: 0
Received 0 Likes on 0 Posts
Wink Phase Angle - What is it??

Listening in on a ground lesson where a instructor was talking about phase angle. He said that it the rotor system on a helicopter was not a true gyro because it did not spin quickly enough, hence it did not precess at 90 degrees. He said that in the S300 phase angle was approximately 78 degrees.

Is there a certain "RPM" that a spinning object becomes a true gyro?

I read somewhere online that phase angle had to do with flapping, I looked at my books but can't find anything. When I brought this up he look puzzled and said that he would get back to me, but still has not.

Could someone please explain this to me simply and then in detail, as I am only starting out and would like to get the basic's now then more detail later.

thanx
Zulu
gwelo shamwari is offline