REFLECTOR: pitch Trim

John Dibble aminetech at bluefrog.com
Sat Jul 14 11:37:18 CDT 2007


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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