Today's Message Index:
----------------------
1. 01:34 AM - ray allen flap position sender indicator (chris Sinfield)
2. 03:26 AM - Re: ray allen flap position sender indicator (DaveG601XL)
3. 05:43 AM - Re: ray allen flap position sender indicator (Paul Mulwitz)
Message 1
| INDEX | Back to Main INDEX |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
| Subject: | ray allen flap position sender indicator |
Gang
which Ray Allen flap sender is used for the flaps on the XL?
RAC POS-5 or the POS -12
which RAC indicator can i be used for ?
Chris..
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=315790#315790
Message 2
| INDEX | Back to Main INDEX |
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
| Subject: | Re: ray allen flap position sender indicator |
Chris,
I cannot answer specifically which position sender will work best because I do
not use one at all. A quick glance out to the left gives me all the indication
I need. I have not missed being without a flap indication instrument.
Good luck,
--------
David Gallagher
601 XL/Jabiru 3300
First flight 7/24/08
Upgraded 3/19/10
150+ hours and climbing!
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=315793#315793
Message 3
| INDEX | Back to Main INDEX |
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
| Subject: | ray allen flap position sender indicator |
Hi Chris,
I bought one of the Ray Allen sensors but I haven't installed it yet.
I think most of the sensors can be made to work. You need some sort of
voltmeter with a modified face to reflect flap position instead of volts.
Then you need a variable resistor (such as the Ray Allen sensor) and you
need to figure a way to install it so flap motion makes it move. This might
be some sort of bracket to put it in a good position and a way to attach it
to the flap control arm.
The electric circuit should have a dividing resistor (perhaps from Radio
Shack). This allows the sensor to actually change the output voltage when
the arm moves. Then you need a fuse or other current limit device to
prevent fire or damage if there is a short circuit. When it is all
assembled you can calibrate the reading for the desired marks on the face of
the indicator.
I scribbled up a possible electrical circuit for this function and copied it
below. It needs some more design work before you can install it in your
plane.
First you need to decide how much current to run through the sensor in the
maximum case. This determines the size of the meter needed and the resistor
value. A good place to start might be 50 milliamps. Then obtain a meter
that is at least that large - perhaps a 50 mA sensor calls for a 100 mV
meter. If you use this kind of current then a 1 amp fuse might work just
fine (you don't want the fuse too close to the actual current used - just
small enough to trip when a short circuit happens and huge current is called
for).
There are many sources for meters and resistors. Wire should probably be
aircraft grade stuff, but with this kind of current the size is not
important. I limit wire to 22 AWG as the smallest choice for mechanical
reasons.
Ohms law: I = E/R can be used to solve for all the current voltage and
resistance values needed. I is current in amps, E is voltage in volts, R is
resistance in ohms.
If you get stuck on any of the steps please feel free to contact me offline.
(Sorry for the tutorial post. I used to design stuff like this, and a lot
more complicated stuff, for a living many years ago).
Paul
Camas, WA
-----Original Message-----
From: owner-zenith601-list-server@matronics.com
[mailto:owner-zenith601-list-server@matronics.com] On Behalf Of chris
Sinfield
Sent: Friday, October 15, 2010 1:32 AM
Subject: Zenith601-List: ray allen flap position sender indicator
<chris_sinfield@yahoo.com.au>
Gang
which Ray Allen flap sender is used for the flaps on the XL?
RAC POS-5 or the POS -12
which RAC indicator can i be used for ?
Chris..
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=315790#315790
Other Matronics Email List Services
These Email List Services are sponsored solely by Matronics and through the generous Contributions of its members.
-- Please support this service by making your Contribution today! --
|