REFLECTOR: Pitch Trim Mystery

[Alex Balic]

$115?    Man, I am in the wrong business...........

 

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From: reflector-bounces at tvbf.org [mailto:reflector-bounces at tvbf.org] On
Behalf Of John Tvedte
Sent: Thursday, March 23, 2006 10:13 PM
To: Velocity Aircraft Owners and Builders list
Subject: RE: REFLECTOR: Pitch Trim Mystery

 

http://www.compositedesigninc.com/Trim_Relay.htm

-----Original Message----- 
From: reflector-bounces at tvbf.org on behalf of John Dibble 
Sent: Thu 3/23/2006 6:09 PM 
To: Velocity Aircraft Owners and Builders list 
Cc: 
Subject: Re: REFLECTOR: Pitch Trim Mystery

Any way to get a pic of this to see if that's what I have?  aircraft spruce
has several relay boards. 

John 

Scott Baker wrote: 

The answer depends on the load carrying specifications of the switch.  Make
sure the switch is rated for DC current.  Composite Design makes a 4-way
trim relay board, which can be purchased through Aircraft Spruce or through
the Velocity parts department.  It's a nice board - works great - easy to
install.  A trim relay board allows just about any size of trim switch to be
installed in the control stick.SB 

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

From: Tom <mailto:tmartino at troubleshooter.com>  Martino

To: Velocity Aircraft <mailto:reflector at tvbf.org>  Owners and Builders list

Sent: Thursday, March 23, 2006 12:17 PM

Subject: RE: REFLECTOR: Pitch Trim Mystery

  

I probably did a stupid thing.But I connected my control stick switches
directly to the trim motor and breaker.There is no relay in between.I know
it is just a matter of time before the switches say ⌠goodbye■.

Question:Is there an easy way to connect a relay (up near the trim actuator)
where it is easy to get to the wire leads?My logic says ⌠yes■ ┘ but I want
to hear from those who have retrofitted/ 

Thanks 

-----Original Message----- 
From: reflector-bounces at tvbf.org [mailto:reflector-bounces at tvbf.org] On
Behalf Of Ron Brown 
Sent: Thursday, March 23, 2006 10:06 AM 
To: Velocity Aircraft Owners and Builders list 
Subject: Re: REFLECTOR: Pitch Trim Mystery 

John, 

I agree with TEC:

If the trim switch is in the control stick, it probably has a very low power
rating and needs to be actuating relays.  If there is a relay, you need to
trouble shoot and determine if the problem is in the relay or the switch.

If your trim switch is mounted on the panel (and involves no relays), then
the switch needs to be replaced. 

Ronnie

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

From: HYTEC45 at aol.com

To: reflector at tvbf.org

Sent: Thursday, March 23, 2006 11:38 AM

Subject: Re: REFLECTOR: Pitch Trim Mystery

In a message dated 3/23/2006 8:31:06 A.M. Pacific Standard Time,
aminetech at bluefrog.com writes:

Any suggestions on what


to do with the switch?

Use the switch to operate a relay (DPDT).  The relay can handle a larger
load then the switch.  Plus, the relay is much easier to replace or trouble
shoot in the event of future service.   I have an original military grip
w/cooley hat.  It would be tough to find a replacement switch for that, so I
elected to use relays to carry both the roll and pitch loads.  Has worked
fine for 11 years.

TEC


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