Characteristics

[Bob Pastorello]

I had one once, but I was able to cough it up after enough beer.

Bob Pastorello
NSRCA 199  AMA 46373
rcaerobob at cox.net
www.rcaerobats.net


  ----- Original Message ----- 
  From: John Ferrell 
  To: discussion at nsrca.org 
  Sent: Saturday, January 01, 2005 4:40 PM
  Subject: Re: Characteristics


  I have noticed my multi-axis autopilot has developed a divergent phugoid lately.
  refer to http://www.flightlab.net/pdf/7_LongitudinalDynamicStability.pdf
  John Ferrell    
  http://DixieNC.US

    ----- Original Message ----- 
    From: Bob Pastorello 
    To: discussion at nsrca.org 
    Sent: Saturday, January 01, 2005 2:47 PM
    Subject: Re: Characteristics


    Nat, what is the "S" axis?
        And why should I solve loop tracking?
        My multi-axis autopilot does that for me.

    Bob Pastorello
    NSRCA 199  AMA 46373
    rcaerobob at cox.net
    www.rcaerobats.net


      ----- Original Message ----- 
      From: Nat Penton 
      To: discussion at nsrca.org 
      Sent: Saturday, January 01, 2005 1:24 PM
      Subject: Characteristics


      Ray your outline of the variables affecting loops makes sense. To solve the problem we could place a vane sensor ahead of the fin and have automatic fin adjustment. It would not require a servo and may eliminate the need for right thrust. Lets assign this project to Bob Pastorello.

      Now we need to address why pattern planes pitch down in S and L yaw and pitch up when inverted.    Nat


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