REFLECTOR: Elevator counterweights, inboard

Wed Jan 9 19:11:04 CST 2008

Yes- a lot of us replaced the sleeve bearings at the center with ball
bearings- but I see what Grigire is talking about now- not to worry, the
parts bags are not always labled properly- just se what will work there
according to the drawings- as for extra long 10-32 screws- try McMaster
Carr- they have everything....

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From: reflector-bounces at tvbf.org [mailto:reflector-bounces at tvbf.org] On
Behalf Of Jorge Bujanda
Sent: Wednesday, January 09, 2008 2:15 PM
To: 'Velocity Aircraft Owners and Builders list'
Subject: Re: REFLECTOR: Elevator counterweights, inboard

Grigore,

I believe Alex refers to the bronze flange bearings that you have between
the torque tubes and the center elevator hinge.  I went through the same
process.  I recommend that you use the 3.5 inch screws provided and forget
the labeling of the bags.  The manuals and bag labeling do not always match.
Remember that the spacer and counterweights are part of the control system
(elevators) anyway.  

I needed to add half a counterweight to balance my elevators and used two
long (3.5 inch ) screws for it.  I used a long screw with the spacer in the
distal (forward) hole, a long screw in the middle hole and the bolt
connecting the elevator assembly to the control stick.  I believe the spacer
would work better in the middle hole but it tops against the elevator hinge
and restricts down elevator deflection.  I  remember having to increase
somewhat the depth of the screw holes in the counterweights to be able to
tighten the three of them.  I used washers on both sides to avoid direct
contact of the screw heads or nuts with the lead counterweights and keep
these from deforming the seats in the holes of the weights.  I had the
opportunity to see the factory's Velocity TC and have a picture of it
somewhere with the additional half inboard counterweight for balance too.  I
will look for it if you want, although it will not show the detail of the
assembly.  If you do not need additional inboard weight, you would only need
to use a long screw and the spacer in the front hole and the bolt in the aft
hole.  

Here is the link for the picture of my setup.  Don't be misled by the castle
nut in my picture, I just use them temporarily so I keep my lock nuts unused
until final assembly.
http://members.dslextreme.com/users/abujanda/images/CWEIGHTIN.jpg

I have not looked but would like better quality 3.5" to 4" screws.  Any
leads from the group on where to find some extra long 10-32 screws would be
appreciated.  I have not looked in real detail but seems like AS does not
have them that long.  

Hope this helps,

Jorge

Regards,

Jorge Bujanda
Velocity XL FG 

Palmdale, CA
Website:  http://members.dslextreme.com/users/jbujanda/

"Make your best case... not the best case."
"Spare the noise... convince through silence."

                                                                         JB

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From: reflector-bounces at tvbf.org [mailto:reflector-bounces at tvbf.org] On
Behalf Of Grigore Rosu
Sent: Wednesday, January 09, 2008 7:02 AM
To: Velocity Aircraft Owners and Builders list
Subject: Re: REFLECTOR: Elevator counterweights, inboard

Alex,

Don't know what the ball bearing is, sorry.  However, I took a picture of
what I think should go in there and attached it.  The left bag's label is
"torque tube spacer assembly" and its including bolt is an AN4-10A.  On the
other hand, the manual says that the spacer would be used together with a
stainless long screw of size 3-1/2'' going through the two weights and the
torque tubes plates.  The only 3-1/2'' screws I received with my kit are
those in the bag on the right side of the picture, which contains 4 AN3-33A
bolts.  However, those screws appear listed in the "control system" part,
not the canard, and the spacer's hole is 1/4'', not 3/16'' as one would
expect if one was to use one of those long bolts. 

Thank you,
Grigore

On Jan 9, 2008 8:16 AM, Alex Balic <velocity_pilot at verizon.net> wrote:

Grigore-

Do you have the ball bearing modification on the elevators? Maybe it is
standard equipment now, the hardware would be different from what the manual
shows if it is the case and the manual has not been updated.. 

Alex

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From: reflector-bounces at tvbf.org [mailto:reflector-bounces at tvbf.org] On
Behalf Of Grigore Rosu
Sent: Tuesday, January 08, 2008 6:46 PM
To: Velocity Aircraft Owners and Builders list
Subject: REFLECTOR: Elevator counterweights, inboard 

Many thanks for your answers on primers.  I will consider some cold weather
accelarator for 545, but in the meanwhile I'll work on parts that don't need
higher temperatures, such as the elevators instalation. 

I was just installing my inboard elevator counterweights and ran into some
problems.  I guess part of the them are due to the fact that the manual is
not updated together with the kit. 

First, all the parts listed in the table at the begining of section 3.5.2
(positioning torque / counterweight arms) have completely different numbers
from those of the parts that I received with my kit in the little plastic
bags.  Therefore, I had to go by descriptions, pictures and by
trial-and-error. 

Second, all the screws mentioned in the installations in Sec 3.5.2 are
MS23694S-59, including those attaching and weights and those attaching the
aluminium bushing in the torque tubes to the elevators; however, they were
too short for the aluminum bushings, so I took the liberty to use
MS23694S-70 instead, which appear to have the right, larger length.  I'll
call Velocity tomorow and ask them whether that was OK to do or not, but I'm
sure that MS23694S-59 cannot go all the way through those large aluminum
bushings. 

Third, my "torque tube spacer assembly" bag contains indeed one spacer and
one bolt, but the bolt is AN4-10A and the spacer has a 1/4'' hole through
it.  On the other hand, the manual mentions a large stainless 3-1/2'' screw
that goes through both weigths; the weights have 3/16 holes, so I'm assuming
the 3-1/2'' screw would also be 3/16.  I was really expecting to find the
3-1/2'' screw together with a spacer with hole 3/16 in the torque tube
spacer assembly, not what I found.  Am I doing anything wrong here? 

Finally, while the countersunk MS23694S-59 look nice on the outboard
counteweights because they really sink in the arms, they look kind of ugly
on the inboard one ... Are they supposed to also be countersunk where they
attach the inboard weights as well? 

Thank you,

Grigore

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