REFLECTOR:Gear Up

Fred Marconi reflector@tvbf.org
Tue, 6 Apr 2004 08:53:05 -0400


  Chuck:

  Again thanks.  I spoke with Scott B and he says that this is common with
S-Tec and velocities, I am not the only one with this problem.  I called
S-teck and they will supply me with the pod and the diagram of how to do the
modification.

  Fred

  ----- Original Message ----- 
  From: "Chuck Jensen" <cjensen@dts9000.com>
  To: <reflector@tvbf.org>
  Sent: Monday, April 05, 2004 6:53 AM
  Subject: RE: REFLECTOR:Gear Up


  > Fred,
  >
  > I might add, the Clevelands will not harm the gear legs on hard braking.
  > The tires will skid before the gear is pressured enough to damage.  Can
you
  > make your tires "chirp" with the Matcos?  Not a standard practice but if
it
  > comes to that, you should be able to leave skid marks.  In a tight
  > situation, the only skid marks Matcos leave is in your draws.
  >
  > S-Tec pilot oscillation issue.  If you look back through Reflector, and
  > VVs?, the S-Tec oscillation has been addressed by S-Tec by adding a pot
on
  > one of the circuits (for experimentals only).  That exhausts what I know
  > about it but I think there is a solution out there for you.
  >
  > Chuck
  >
  > -----Original Message-----
  > From: reflector-admin@tvbf.org [mailto:reflector-admin@tvbf.org]On
  > Behalf Of Fred Marconi
  > Sent: Sunday, April 04, 2004 11:52 PM
  > To: reflector@tvbf.org
  > Subject: Re: REFLECTOR:Gear Up
  >
  >
  >
  >   Dear Scott B:
  >
  >   Well I was a little angry about the fork.  Mad Mike, before leaving
was
  > very emphatic about changing the fork, he said there was a new one, much
  > better.  I called you on this specifically and you said everything was
fine.
  > If there was a question, why did yu not call mad Mike to make sure
  > everything was OK.?   If not for wishing to center the wheel on the fork
I
  > would not have noticed what was happening.  This is why the bolt did not
  > turn, I spoke to you about that as well.  In any event it's my fault for
not
  > reading the V-News but then again what of the clients that are not
  > subscribed.  Well I have read the V-News but did not pick up on this.
On
  > another note if this is such an issue as with car companies that have
  > thousands upon thousands of clients, when a defect is noticed, they have
  > knowledge of who bought what and they notify the client directly.  There
  > should have been a record of when I bought the fork and what fork and if
  > this was such an issue to the well being of the client and the factory I
  > should have been notified by mail.  When it comes to sending me a bill
there
  > is never a delay.  THAT VELOCITY KEEPS GOOD TRACK OFF.
  >
  >    Scott on these issues the company need to take a greater role in
  > notifying the client.  YOu know how concientious I have been.  Rest
assured
  > that if I would have recieved a note form Velocity on this I would have
  > taken action.  I did not hesitate to spend over $7000.00 for a new wing.
I
  > still love you, YOU ARE GREAT!
  >
  >   Now on the brakes.  Really these Matcos are.....Well what can I say.
I
  > mean I can land in 2500' with as little experience as I have, but the
brakes
  > do leave a lot to be desired.   It Chuck is right about the Clevelands
the
  > company should not be recommending or selling the Matco's  We do not
need to
  > be worried about overheating the brakes and damaging our main gear if
there
  > is a better alternative.
  >
  >   On a better note, I have 0.7 hours to go for the sign off.  The plane
has
  > performed beautifully.  today I did alot of x-wind landings, at Pohokee
I
  > landed with a 90 degree 15-18 mile x-wing.  I love how the plane
handles.  I
  > love to fly this plane, it's a rush.
  >
  >    I do have a problem with the s-Tec autopilot.  On the roll control
the
  > plane bobs constantly from right to left.  The ailerons just keep on
going
  > up and down.  The oscilations are small and very anoying.  Nathan had
  > adjusted the ailerons slightly down, after flying the plane they as
3/16" up
  > both.  I am going to tighten the cables and readjust the ailerons to a
down
  > position.  What input do you have for me on this issue.  The climb and
reach
  > altitude and level function was a complete orgasm.
  >
  >   I practice on some high approaches on final and fast slow descent then
  > nosing down to 100 then smoothing her in.  This plane handles great!!!!
  > Would be interesting to see how she might perform with vortex generators
and
  > fences.
  >
  >   Fred
  >   ----- Original Message ----- 
  >   From: "Scott Baker" <sbakr@comcast.net>
  >   To: <reflector@tvbf.org>
  >   Sent: Saturday, April 03, 2004 7:27 AM
  >   Subject: Re: REFLECTOR:Gear Up
  >
  >
  >   > Fred,
  >   >     I don't think it's quite fair for anyone to criticize the
factory
  > for a
  >   > busted nose wheel fork if it is of the old (smaller) design.  The
  > factory
  >   > has mentioned this time after time after time in the VV that the old
  > forks
  >   > should be replaced.  The factory subsidized the cost of the new
forks.
  > If
  >   > someone is operating an old fork today - they are ignoring the
warning
  > from
  >   > the factory.  So please don't lay blame on the factory for an
"almost
  >   > mishap" when your older fork developed a crack.
  >   >     In regards to the main wheel getting stuck on the lip at the
bottom
  > of
  >   > the wheel well.  This was caused as you know when the main gear leg
  > warped
  >   > when it became overheated after being exposed to the excessively hot
  > heat
  >   > from the brakes.  Overheated brakes and the problems that come from
  >   > overheated brakes has also been the subject of repeated articles in
the
  >   > Velocity Views.  If you ride the brakes or do repeated hard braking,
a
  > lot
  >   > of heat develops around the brake disk, which is then transferred to
the
  >   > gear leg.  Too much heat leads to a softening of the gear legs.  And
if
  >   > there is any stress on the gear legs when they are soft, the legs
will
  > warp
  >   > to relieve the stress.  We need to a) understand that this situation
is
  >   > possible, b) try to avoid overheating the brakes, and c) when the
brakes
  > are
  >   > overheated, do something about it like throwing a wet towel around
the
  > leg
  >   > and/or pulling the aircraft forward about 15' after it has been
stopped
  > so
  >   > that the pressures on the gear leg are neutralized, and lastly d)
look
  > for a
  >   > warped leg during the preflight, just in case a,b,and c have been
  > ignored.
  >   > If the wheel or lower portion of the gear leg looks crooked, the
  > geometry of
  >   > the gear has obviously changed - and therefore the clearances of the
  > gear
  >   > going into the wheel well will be changed and there is a possibility
of
  >   > getting wheel stuck in the well.  The lip at the wheel well presents
a
  > ledge
  >   > where hardware can catch and hang-up when this happens - so yes, I
agree
  >   > with you that not having a lip is better than having a lip - but
  > eliminating
  >   > the lip does not eliminate the possibility of a stuck gear ... the
tire
  >   > could easily wedge itself against the wheel well and the gear could
be
  > stuck
  >   > to the point that it might not come down.  Again the root of this
  > paragraph
  >   > was overheated brakes and warped gear legs.
  >   >
  >   > ----- Original Message ----- 
  >   > From: "Fred Marconi" <fmarconi@bellsouth.net>
  >   > To: <reflector@tvbf.org>
  >   > Sent: Saturday, April 03, 2004 12:45 AM
  >   > Subject: Re: REFLECTOR:Gear Up
  >   >
  >   >
  >   > >   Scott:  Insurances for Velocity are provided at with a 10%
  > deductible.
  >   > At
  >   > > that I felt that it was not wise to take hull coverage.
  >   > >
  >   > >   Velocity has a bad record, and I have to say that this is in
part
  > the
  >   > > factory's fault.  The initial fork that was used for the front
wheel
  > was a
  >   > > bad desigh.  It took many accidents before they decided to change.
  >   > > Insurances did not forget this.  The landing gear system can be
better
  >   > > designed, the factory is slow to change, we pay the insurance
price.
  >   > >
  >   > >   I was one of the lucky ones, I cought the crack on the old fork
  > before a
  >   > > mishap, I do have to thank the company for offering me a
replacement
  > for
  >   > the
  >   > > new desigh at no charge.  The mains, well they got stuck on me and
  >   > > fortunatelly I had someone in the plane and we knocked them loose.
  > The
  >   > > wheel got cought on the inbord lip of the strake.  The camber had
  > changed
  >   > 2
  >   > > degrees, enough to cause a problem.  I removed the lip and will
add
  > the
  >   > > material to the skirt.  This skirts need to be redisigned, they
would
  > not
  >   > > hear of this.
  >   > >
  >   > >   Fred
  >   > >
  >   > >   ----- Original Message ----- 
  >   > >   From: "Scott Derrick" <scott@tnstaafl.net>
  >   > >   To: <reflector@tvbf.org>
  >   > >   Sent: Thursday, April 01, 2004 2:01 PM
  >   > >   Subject: Re: REFLECTOR:Gear Up
  >   > >
  >   > >
  >   > >   > Don,
  >   > >   >
  >   > >   > What a drag!!! IN more ways than one!!  Sorry for the bad
joke,
  >   > >   >
  >   > >   > Having just been through a nose up landing because of a stuck
up
  > nose
  >   > > gear
  >   > >   > I feel some of your pain.  THough I didn't trash a prop, I'm
still
  >   > >   > reshaping the nose, rebuilding the nose gear doors, and
completely
  >   > >   > replacing the nose gear assembly so I have the latest and
greatest
  >   > >   > equipment.
  >   > >   >
  >   > >   > I don;t have in-flight insurance so I'm doig htis out of
pocket.
  > Not
  >   > to
  >   > >   > bad really, but a trashed MT would have been pricey!
  >   > >   >
  >   > >   > Hope you figure out why it didn't lock.  What year was your
kit?
  >   > >   >
  >   > >   > Scott
  >   > >   >
  >   > >   > > I had the main gear on my 173RGE collapse on landing this
  > afternoon.
  >   > > At
  >   > >   > > first glance the damage doesn't seem to be too bad. A ground
up
  >   > belly
  >   > > and
  >   > >   > > a trashed MT prop.
  >   > >   > >
  >   > >   > > It is really too soon to do much speculation as to the cause
  > until I
  >   > > have
  >   > >   > > had a chance to examine it more carefully. However, at  this
  > point
  >   > it
  >   > >   > > looks as though the overcenter linkage may simply not have
  > latched
  >   > >   > > properly. I can't really say whether I had two greens on the
  > gear
  >   > > lights
  >   > >   > > or not, but I am sure that I didn't have a red light.
  >   > >   > >
  >   > >   > > I will report back if and when I have more definite
information
  > as
  >   > to
  >   > > what
  >   > >   > > happened.
  >   > >   > >
  >   > >   > > Donald Royer
  >   > >   > > djroyer@earthlink.net
  >   > >   >
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