REFLECTOR: pitch Trim

Lou Stedman stedmanlou at adelphia.net
Sun Jul 15 12:32:48 CDT 2007


When I am alone in flight, I need more up trim for straight and level flight. I know I may also need some ballast in the nose. However on the ground when I measure the travel, I have a great deal of trailing edge down and no trailing edge up.

Lou Stedman
Velocity N7044Q
Olean, NY
  ----- Original Message ----- 
  From: John Dibble 
  To: Velocity Aircraft Owners and Builders list 
  Sent: Saturday, July 14, 2007 12:37 PM
  Subject: Re: REFLECTOR: pitch Trim


  You mean while on the ground, or in flight.  You should have a lot more on the ground. 
  John 

  stedmanlou at adelphia.net wrote: 

    I am needing more down trim which will make the trailing edge go up. Right now I have only about 1/4" of down trim and the book calls for 1 1/2" 
    -- 
    Lou Stedman 
    LEZ N9EC 
    Olean, NY 
    ---- Pat Shea <xl340hp at yahoo.com> wrote: 
    > Steve, 
    > 
    > Fully understand. I read Lou's post to mean that he 
    > wants to be able to make the trailing edge of the 
    > elevator go further "down" (which is actually "up" 
    > trim while flying). If so, then reversing sparrow 
    > strainer will make his situation worse. 
    > 
    > Lou, did need the trim to make the trailing edge of 
    > the elevator go further down or that you actually need 
    > more flying down trim (trailing edge of the elevator 
    > up)? 
    > 
    > Pat 
    > 
    > --- steve korney <s_korney at hotmail.com> wrote: 
    > 
    > > 
    > > Pat... 
    > > 
    > > Using the sparrow strainer as a positive angle of 
    > > attack trim tap, helps to 
    > > push the elevator up and hence gives more down trim 
    > > as you go faster... 
    > > It's self adjusting for speed...  I use 20 degrees 
    > > of positive angle of 
    > > attack on the sparrow reference the cord of the 
    > > canard... 
    > > 
    > > 
    > > Best... Steve 
    > > 
    > > 
    > > 
    > > 
    > > ----Original Message Follows---- 
    > > From: Pat Shea <xl340hp at yahoo.com> 
    > > 
    > > Not to mention that turning the sparrow strainer 
    > > around would only make Lou's problem worse... 
    > > 
    > > When he says "down" trim it sounds like he wants to 
    > > be 
    > > able to make the trailing edge of the elevator go 
    > > further down (which is actually "up" elevator while 
    > > flying). Adding a spacer between the actuator arm 
    > > and 
    > > the trim spring should do the trick. 
    > > 
    > > Pat 
    > > 
    > > 
    > > --- steve korney <s_korney at hotmail.com> wrote: 
    > > 
    > >  > 
    > >  > 
    > >  > John...  Your opening a can of worms.......  It 
    > >  > seems that me and you are 
    > >  > the only one's that like that idea....  It does 
    > >  > work... 
    > >  > 
    > >  > Best... Steve 
    > >  > 
    > >  > 
    > >  > 
    > >  > 
    > >  > ----Original Message Follows---- 
    > >  > From: John Dibble <aminetech at bluefrog.com> 
    > >  > Reply-To: Velocity Aircraft Owners and Builders 
    > > list 
    > >  > <reflector at tvbf.org> 
    > >  > To: Velocity Aircraft Owners and Builders list 
    > >  > <reflector at tvbf.org> 
    > >  > Subject: Re: REFLECTOR: pitch Trim 
    > >  > Date: Fri, 13 Jul 2007 08:08:05 -0500 
    > >  > 
    > >  > The simplest way is to reverse the sparrow 
    > > strainer. 
    > >  > 
    > >  > John 
    > >  > 
    > >  > Bruce Topp wrote: 
    > >  > 
    > >  >  > Lou, 
    > >  >  > 
    > >  >  >    I have the same problem.  It was suggested 
    > > to 
    > >  > put a spacer between 
    > >  >  > the trim spring and the bracket that attaches 
    > > to 
    > >  > the actuator.  This 
    > >  >  > effectively gives the actuator a longer reach 
    > > and 
    > >  > will provide more 
    > >  >  > down trim.  You will probably have to 
    > > experiment 
    > >  > with the thickness of 
    > >  >  > the spacer. 
    > >  >  > 
    > >  >  > Bruce Topp 
    > >  >  > 
    > >  >  > XL-FG 
    > >  >  > 
    > >  > 
    > > 
    > ----------------------------------------------------------------------- 
    > >  >  > From: reflector-bounces at tvbf.org 
    > >  >  > [mailto:reflector-bounces at tvbf.org] On Behalf 
    > > Of 
    > >  > Lou Stedman 
    > >  >  > 
    > >  >  > Sent: Thursday, July 12, 2007 10:06 PM 
    > >  >  > To: Reflector Velocity 
    > >  >  > Subject: REFLECTOR: pitch Trim 
    > >  >  > I have an old Velocity STD and would like to 
    > >  > adjust the pitch trim. I 
    > >  >  > need a little more down trim. I looked at my 
    > >  > actuator and don't see 
    > >  >  > any way to increase the travel. What is the 
    > > best 
    > >  > way to do this? 
    > >  >  > Lou Stedman 
    > >  >  > 
    > >  >  > Velocity N7044Q 
    > >  > 
    > 
    > 
    > 
    > 
    > ____________________________________________________________________________________ 
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