Wing Level Button?

[TWinter]

Okay..I'm probably gonna take some hits on the topic "It's been beaten to death", but I can't seem to find and answer.

My 73/74 has the button for the Positive Wing Level System. I know somebody must have a better way to activate (or deactivate) the button. In other words..Is there not a better system then to have a tacky looking rubber-band hold my button down during local flights. I know the system does not get damaged by manual over-ride when the system is in use, but I usually don't use it unless it's a roadtrip. Any ideas or suggestions?

Thanks,

Tom

[Hank]

I never use my button. XC has few turns; in the pattern, heavy controls remind me not to over-bank. Sometimes i'll have a right seater want to fly, then I get to hold it down.

Why fly around with it turned off? Keeping her straight and level frees me to look around more, especially now that the leaves are about to change. For turns around the house, it's not hard ti hold down for a couple of laps.

If you're dead set against having your wings level, you can carefully pull the button up without it coming out. That will disable it. Or take it out and put it in the ashtray until you want it.

[omega708]

Call Brittain in Oklahoma and ask them for the PC bypass valve. I'm pretty sure if you search for PC bypass on the forum you'll find a previous post with the part number. It's a non-stc'd part but is just a simple vacuum bypass...

[omega708]

Link to other thread. Part number 11516. Cost ~$135 including shipping.

[TWinter]

Link to other thread.

http://www.mooneyspa...age__hl__bypass

Thanks guys..I hate to actually not have it available for x-country or longer trips. Just wondering if there was a better device than the "Rubber-Band" technique. I'll check out the references mentioned.

Just read all the different ideas. Looks like there are a few options. I like the toggle switch option. Thx

[omega708]

Both methods allow you to use the system when you choose to do so. With the vacuum model, it is just a small push/pull knob. Pushed in bypasses the PC. Pulled out enables the PC, but you can still manually override with the yoke button.

The link below is a picture of my panel before my avionics upgrade. The little black button below my throttle is the bypass valve.

http://www.mooneyspace.com/index.php?app=core&module=attach&section=attach&attach_rel_module=post&attach_id=21575

[Shadrach]

Thanks guys..I hate to actually not have it available for x-country or longer trips. Just wondering if there was a better device than the "Rubber-Band" technique. I'll check out the references mentioned.

Just read all the different ideas. Looks like there are a few options. I like the toggle switch option. Thx

There is, just take the button out. It pulls right out of the socket and can be stashed in the ashtray for maneuvering or if you have a right seater flying one leg. Some are more stubborn than others, in that case, give it a gentle pry with a plastic key fob. Mooney pilots have been doing it this way for years.

[Comatose]

My push to talk button is on velcro. Push it up over the PC valve... off. Slide it down an inch... on. Works for me...

[N201MKTurbo]

I thinl I'm safe with the statute of limitations at this point, I sold my M20F in 2003. When I bought that plane in 1984 two weeks later I went to the aurto parts store and got a vacuum solonoid valve for som AMC smog system for $10.00, and a Klixon circuit breaker switch fron the local airplane junkyard and wired it up. 19 years later it still worked perfect. Funny how no inspector ever noticed it.

[OldGlassMan]

Link to other thread. Part number 11516. Cost ~$135 including shipping.

http://www.mooneyspa...age__hl__bypass

Same thing I did. The Britton guy was great, and the whole thing went in easy -- and legally. I upgraded to new 201 yokes at the same time and replaced the button on the yoke with an electric one mounted in the same relative position. Both the override button and the switch on the panel disable the PC via the vaccuum valve, which is electric. Only took a Form 337 for the change.

[mooneygirl]

I love mine, and just push the button on take off and in the pattern. I love love love it.

[N601RX]

The Mooney Retrofit kit drawings for the Yoke upgrade allows you to legally replace vaccum button with the electric valve and push button switch. The valve is part of the yoke and control shaft upgrade. A lot of people pull the air valve button out, but I believe this will allow unfiltered air into the vac system.

[M204ever]

You may install an ALT. STATIC Switch into the vac. supply line and locate it where suitable.

[FloridaMan]

Previous owner put a foot from a walker or a cane on my button. I have a 3D printer and am considering designing a more attractive selector switch.

[Shadrach]

The Mooney Retrofit kit drawings for the Yoke upgrade allows you to legally replace vaccum button with the electric valve and push button switch. The valve is part of the yoke and control shaft upgrade. A lot of people pull the air valve button out, but I believe this will allow unfiltered air into the vac system.

[Shadrach]

Could you show me the filter on the button? Every time you push the button you in effect do the same thing as when you remove it. Which is to say create a leak in the PC system. The only difference with button removal is tha it's not sucking air at a higher velocity (smaller opening) around a grimy thumb...