[NSRCA-discussion] Aero design question

[Nat Penton]

Lance - Peter
Sorry for the delayed response. I would like to point out the slipstream effect on the empennage is more of a steady state nature, whereas the aileron effects are instantaneously disruptive.                    Nat
  ----- Original Message ----- 
  From: Lance Van Nostrand 
  To: NSRCA Mailing List 
  Sent: Saturday, September 02, 2006 5:19 PM
  Subject: Re: [NSRCA-discussion] Aero design question


  Nat and Peter,

  I differ on this.  I've built 3 sets of test wings on an Aries with 20, 22, 24" ailerons.  The idea was to see if I could get more aileron effectiveness while flying at a slower pace on uplines.  this is where airspeed is lower and ailerons lose effectiveness.  The thought is to catch some of the prop blast to boost effectiveness and give a more consistent feel.

  It works well.  Do not be concerned about longer ailerons affecting airflow over the stab.  The swirling propstream does far more damage.  On the Symphony I found 22" to be my favorite and I've updated the kit.  On the Aries, 24" seems to work best.

  It sure is great to be able to continuously improve a good desing into a great one.  Every time you start over with a new plane there's a whole new learning curve.

  --Lance

    ----- Original Message ----- 
    From: Nat Penton 
    To: NSRCA Mailing List 
    Sent: Friday, September 01, 2006 9:12 PM
    Subject: Re: [NSRCA-discussion] Aero design question


    Peter
    You are not barking up the wrong tree <G> - there is no reason not to stop the aileron about even with the stab tip. You have nothing to lose.  Nat 
      ----- Original Message ----- 
      From: Peter Pennisi 
      To: 'NSRCA Mailing List' 
      Sent: Friday, September 01, 2006 7:35 PM
      Subject: [NSRCA-discussion] Aero design question


       

      My current model has ailerons which extend a fair way towards the fuselage (Comp-ARF IMPACT) What effect does the turbulence coming off the aileron have on the tail plane. I am currently building another IMPACT (IMHO flies extremely well) which I am considering to reduce their size by cutting and fixing the inboard part to the wing in an attempt to clean up the airflow over the tail plane during rolling maneuvers .  The model does roll well but it could be better.

       

      Am I barking up the wrong tree - any thoughts!

       

      Peter 



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