REFLECTOR: Parking Brake

Fri Jan 28 19:17:29 CST 2011

My Parking Brake valve is level with the bottom of the fluid cylinders.  No 
problems bleeding, the valve looks just like a piece of tubing when open as far 
as the fluid is concerned.  When locked it is just a plugged pipe.

Jim

James F. Agnew
Jim_Agnew_2 at Yahoo.Com
Tampa, FL
Velocity 173 Elite Aircraft Completed & Flying

________________________________
From: "jerry at jlbent.com" <jerry at jlbent.com>
To: Velocity Aircraft Owners and Builders list <reflector at tvbf.org>
Sent: Fri, January 28, 2011 12:21:13 PM
Subject: Re: REFLECTOR: Parking Brake

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

N956DR Std RG
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.

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:Rene Dugas 
>To:geoff.gerhardt at gmail.com ; '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: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
>http://thegerhardts.com/velocity
> 
> 
> 
>On Wed, Jan 26, 2011 at 8:55 PM, Don Johnston <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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>
________________________________

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parking brake 
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