omega708 Posted December 31, 2011 Report Share Posted December 31, 2011 I read somewhere that there is an electric version of the PC bypass to replace the original that is mounted in the control wheel. What I would like to do is move the PC bypass from the control wheel to the instrument panel with a simple on-off toggle switch like a 'normal' autopilot. This would free up the control wheel for better options on push-to-talk etc. First, is this possible? Second, any recommendations? Thanks! Quote Link to comment Share on other sites More sharing options...
aerobat95 Posted December 31, 2011 Report Share Posted December 31, 2011 I too would be interested in this as well.....let me know what you find out. Quote Link to comment Share on other sites More sharing options...
scottfromiowa Posted December 31, 2011 Report Share Posted December 31, 2011 Yes, it's possible. Contact Brittain. They sold me my servo that my Avionics "guy" installed. Works great. The conversion (paperwork) was for a new style yoke (which I have installed) and the switch is just a toggle switch on the front of my yoke. If your "guy" will put it on the panel then you can do it, but the paperwork shows the switch on the yoke... Quote Link to comment Share on other sites More sharing options...
omega708 Posted December 31, 2011 Author Report Share Posted December 31, 2011 Quote: scottfromiowa Yes, it's possible. Contact Brittain. They sold me my servo that my Avionics "guy" installed. Works great. The conversion (paperwork) was for a new style yoke (which I have installed) and the switch is just a toggle switch on the front of my yoke. If your "guy" will put it on the panel then you can do it, but the paperwork shows the switch on the yoke... Quote Link to comment Share on other sites More sharing options...
robert14 Posted January 1, 2012 Report Share Posted January 1, 2012 Why do you need a servo? I have a small pneumatic push-pull valve-switch in serial to the button on the yoke. Works great. You can see it on my panel photo just below the throttle and to the right of then yoke. Pull and the PC is activated, push and it is off. Quote Link to comment Share on other sites More sharing options...
Steve65E-NC Posted January 1, 2012 Report Share Posted January 1, 2012 Robert, Do your logs give a part #, spec or source on the pneumatic switch. Thanks. Steve 65E-NC Quote Link to comment Share on other sites More sharing options...
gregwatts Posted January 1, 2012 Report Share Posted January 1, 2012 In my 71 F model, when the 201 panel went in, they were able to put an on/off switch in the panel. It was done prior to my owning the plane, but I believe that you will at least need the 201 style yokes for what you want to do. Quote Link to comment Share on other sites More sharing options...
robert14 Posted January 1, 2012 Report Share Posted January 1, 2012 I do not have a part number. Just call Brittain and ask about the "manual" valve instead of the servo. Does not effect yoke switch. Both still work. The valve is simply plumbed into the vacuum line in serial with the button on the yoke. I'll try to get the part number next time I am at my hanger. Quote Link to comment Share on other sites More sharing options...
scottfromiowa Posted January 1, 2012 Report Share Posted January 1, 2012 Quote: omega708 Thanks Scott! I checked out the pictures in your gallery. Nice plane. Is the PC switch the one in the center of the yoke? I've also been on the fence about having my yokes refurbished and wrapped vs upgrading. Can you tell me a little more about your yoke upgrade? Quote Link to comment Share on other sites More sharing options...
omega708 Posted January 23, 2012 Author Report Share Posted January 23, 2012 Quote: robert14 I do not have a part number. Just call Brittain and ask about the "manual" valve instead of the servo. Does not effect yoke switch. Both still work. The valve is simply plumbed into the vacuum line in serial with the button on the yoke. I'll try to get the part number next time I am at my hanger. Quote Link to comment Share on other sites More sharing options...
scottfromiowa Posted January 23, 2012 Report Share Posted January 23, 2012 STC SA1938SW and Brittain Industries Installation Manual 402-733-01 on my FAA Form 337. Quote Link to comment Share on other sites More sharing options...
omega708 Posted January 23, 2012 Author Report Share Posted January 23, 2012 Quote: scottfromiowa STC SA1938SW and Brittain Industries Installation Manual 402-733-01 on my FAA Form 337. Quote Link to comment Share on other sites More sharing options...
scottfromiowa Posted January 23, 2012 Report Share Posted January 23, 2012 Sorry...when I read more closely I realized this is a manual valve/modification. Good luck, Scott Quote Link to comment Share on other sites More sharing options...
omega708 Posted January 23, 2012 Author Report Share Posted January 23, 2012 Quote: scottfromiowa Sorry...when I read more closely I realized this is a manual valve/modification. Good luck, Scott Quote Link to comment Share on other sites More sharing options...
scottfromiowa Posted January 23, 2012 Report Share Posted January 23, 2012 The system is on unless you override with the flip of the switch. This shuts the valve and "cancels" the PC. No button holding. Quote Link to comment Share on other sites More sharing options...
Hank Posted January 23, 2012 Report Share Posted January 23, 2012 PTTs are pretty easy to install, without having to redo the PC button. Here's my yoke--the big red button is the PTT. You can fabricate a similar piece for the right yoke, except it won't attach to the clock housing. Just fish the wires out the bottom of the yoke shaft, along with the wires that light up the clock. The screw in the middle of the extension piece has a wire clamp on the back, then the wires route inside the clock housing and exit the distal end of the yoke together, along with the PC button tubing. Powder coat the mount to match your yoke. Quote Link to comment Share on other sites More sharing options...
MATTS875 Posted January 23, 2012 Report Share Posted January 23, 2012 I am thinking of doing the same thing with the PC switch. I can't tell a whole lot of difference with it pushed.. Quote Link to comment Share on other sites More sharing options...
N601RX Posted January 23, 2012 Report Share Posted January 23, 2012 Quote: MATTS875 I am thinking of doing the same thing with the PC switch. I can't tell a whole lot of difference with it pushed.. Quote Link to comment Share on other sites More sharing options...
MATTS875 Posted January 23, 2012 Report Share Posted January 23, 2012 MIke , The yokes feel tight during turns. I have not had much experience with mooney's but it definitely does not handle like the archer I trained in.I might need an adjustment, not sure.If anyone has any ideas I 'm open. Quote Link to comment Share on other sites More sharing options...
scottfromiowa Posted January 23, 2012 Report Share Posted January 23, 2012 anyone have one of these installed? http://brittainautopilots.com/ PC/AHII (Altitude hold for PC system) Looking for pirep on how they function... Quote Link to comment Share on other sites More sharing options...
omega708 Posted January 23, 2012 Author Report Share Posted January 23, 2012 Quote: scottfromiowa anyone have one of these installed? http://brittainautopilots.com/ PC/AHII (Altitude hold for PC system) Looking for pirep on how they function... Quote Link to comment Share on other sites More sharing options...
N601RX Posted January 23, 2012 Report Share Posted January 23, 2012 Quote: scottfromiowa anyone have one of these installed? http://brittainautopilots.com/ PC/AHII (Altitude hold for PC system) Looking for pirep on how they function... Quote Link to comment Share on other sites More sharing options...
scottfromiowa Posted January 24, 2012 Report Share Posted January 24, 2012 Quote: N601RX I added one to my plane last year, but have not flown yet due to some other work I'm doing. The install is easy, Mooney installed the mounting brackets and holes when they built the plane. The parts are very difficult to find. The servos will have to come from either a Mooney or Navion. The controller and other parts are common to several planes and are easier to find. Quote Link to comment Share on other sites More sharing options...
aerobat95 Posted January 24, 2012 Report Share Posted January 24, 2012 I called about the alt hold function.....I am now on the list but they said its over 15 months long......maybe someday... Quote Link to comment Share on other sites More sharing options...
Hank Posted January 24, 2012 Report Share Posted January 24, 2012 Alt Hold would be nice, but I've never heard of anyone successfully finding all the parts since I bought my Accu-Trak and Accu-Flight-equipped plane in 2007. Instead, I've become close friends with the trim wheel, which admittedly is sometimes just not good enough. It flies a decent approach, it just won't land very well that way. Quote Link to comment Share on other sites More sharing options...
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