REFLECTOR: Parking Brake

jerry at jlbent.com jerry at jlbent.com
Fri Jan 28 11:21:13 CST 2011


I don't know if there was something unique in the installation on 44VF, but
we had nothing but brake bleeding problems until we removed the parking
brake.  I could just have been the line routing that was required to locate
it on the bottom of the panel, but since it was removed, we have, for the
first time, been completely successful in bleeding the brakes.  Of couse we
have refined the technique with all of the practice and tools we have
tried.

Just a note about bleeding.  We have tried every combination and technique
to bleed the brakes and finally have it sorted out.  I think the parking
brake mask the best approach.  That is the simple oil can pumping fluid up
from the caliper.  We have tried vacuum bleeding, raising the nose way up
to make everything flow uphill,  high pressure fluid source, vacuum degass
the fluid and none of them worked very well until we removed the parking
brake.  We used the pressure bleed from the bottom after that and it seemed
to work, but we would eventually find a few more bubbles.  Then we thought,
maybe the pressure container is putting air in the fluid that escapes after
the fluid is in the lines.  That seems to have been the issue.  Now
bleeding seems to be very quick and easy (still messy).

I would be interested to know how the lines were routed on those Velos that
have the parking brake and no trouble bleeding the brakes.


Jerry Brainard
Jerry at JLBEnt.com


   	-------Original Message-------
From: Andy Millin
To: 'Velocity Aircraft Owners and Builders list'
Subject: REFLECTOR: Parking Brake
Sent: Jan 28 '11 11:21am


I _have_ the Matco parking brake.


I haven’t installed it yet.


I flipped the switch builder switch about a year ago from “That’s what I
want” to “Only if you need it to fly”.


It is sitting on the shelf.


I can add it later.


:)


Andy


FROM: reflector-bounces at tvbf.org [mailto:reflector-bounces at tvbf.org] ON
BEHALF OF Bachman, Jonathan
SENT: Friday, January 28, 2011 10:22 AM
TO: Velocity Aircraft Owners and Builders list
SUBJECT: Re: REFLECTOR: Annunicators?


Andy,


Did you pick the MATCO valve, or which?


Jon Bachman

575 430-9724


[IMAGE: Front]


N956DR Std RG

[LINK: mailto:jonathan.bachman at mtsi-va.com] jonathan.bachman at mtsi-va.com


FROM: reflector-bounces at tvbf.org [mailto:reflector-bounces at tvbf.org] ON
BEHALF OF Andy Millin
SENT: Friday, January 28, 2011 7:14 AM
TO: 'Velocity xl'; 'Velocity Aircraft Owners and Builders list'
SUBJECT: Re: REFLECTOR: Annunicators?


It isn’t in the manual.  You gotta wanna.


[LINK: http://www.aircraftspruce.com/] www.aircraftspruce.com


:)


FROM: reflector-bounces at tvbf.org [mailto:reflector-bounces at tvbf.org] ON
BEHALF OF Velocity xl
SENT: Thursday, January 27, 2011 10:37 PM
TO: Velocity Aircraft Owners and Builders list
SUBJECT: Re: REFLECTOR: Annunicators?


Parking Brakes???? How is this done? Must have missed it in the manual.
Where is


it in the manual ?


Ron


----- Original Message -----


FROM: [LINK: mailto:dugasd at bellsouth.net] Rene Dugas


TO: [LINK: mailto:geoff.gerhardt at gmail.com] geoff.gerhardt at gmail.com ;
[LINK: mailto:reflector at tvbf.org] 'Velocity Aircraft Owners and Builders
list'


SENT: Thursday, January 27, 2011 6:43 PM


SUBJECT: Re: REFLECTOR: Annunicators?


Attached a pic of my LED’s.   The switch activates all for test.  The
Yellows are now the doors.

Rene’


FROM: [LINK: mailto:reflector-bounces at tvbf.org] reflector-bounces at tvbf.org
[mailto:reflector-bounces at tvbf.org] ON BEHALF OF Geoff Gerhardt
SENT: Wednesday, January 26, 2011 9:30 PM
TO: Velocity Aircraft Owners and Builders list
SUBJECT: Re: REFLECTOR: Annunicators?


Don,


I'm working on my panel as well.  This is what I have planned for my
annunciator panel:


Pilot Door Ajar (RED)


Co-Plot Door Ajar (RED)


Speed Brake Down (YELLOW)


Fuel Pump On (GREEN)


Pitot Heat On (GREEN)


Alternator Out (RED)


Starter Engaged (GREEN)


Lower Gear (RED) (i.e. warning to lower gear)


In addition to the visual warning, red warning indicators will be connected
to an audio alert wired into an unswitched input on the audio panel.


Geoff


[LINK: http://thegerhardts.com/velocity] http://thegerhardts.com/velocity


On Wed, Jan 26, 2011 at 8:55 PM, Don Johnston <[LINK: mailto:don at numa.aero]
don at numa.aero> wrote:

So I'm thinking about building an annunicator panel (with a "Push-to-Test"
and dimmer).

Currently the list of indicators I have come up with is:

Pilot Door Unsafe - RED
CoPilot Door Unsafe - RED
Low Voltage - RED
Low Oil Press - RED
Nose Gear Down - GREEN
Left Main Down - GREEN
Right Main Down - GREEN
Fuel Pump On - AMBER
Hydraulic Pump On - AMBER
Pitot Heat - AMBER

I'm going to have a pair of GRT displays so I'm thinking the low voltage,
low oil press would be provided by their engine monitoring and would be
unnecessary on an annunicator.

What else would be good to have on an annunicator panel? Landing, nav and
strobe lights?

Don Johnston

XL-RG


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