air buttons

[doebro2010]

could someone tell me what some buttons do.
it is one on the left panel, there is a round air knob which you can switch left and to the right
what does it do incase left and right

second question is on the top of the cockpit there are two tubes
I can push it in and out
what does it do incase of in and out

thanks in advanced

[sieggie]

I believe the knob you are referring to is the pneumatic cut off (110). It turns on and off the high pressure air. You will see the air pressure (122) valve register when you turn it on.

These I believe are the for cabin air. They may also provide air to clear windshield fogging but I am not sure of that.

I sort of remember threads on this or the SOH forum talking about both of these items.

Dave