Vaccuum System Failure

[CameronF]

Alternate static, at least in an unpressurized Cessna, just moves a little valve which vents the static source to inside the airplane. It's no big deal.

You know what the alternate to alternate static is?

Smashing the VSI glass. That vents the static to inside the cockpit the same as the alternate static would.

I bet they don't teach that at ATP...hehe.

Lol we hear that a lot in our instrument training at Big Bend. Especially because most of our planes are not equipped with alt. static.

 

[CameronF]

I would like to see someone accomplish this while in the cockpit. The face of most VSI's are extremely thick and nearly impossible to break!!!

I had a friend who had a used one. He used a hammer to it and could not get it to break the face of the instruement.

I would not rely on this method as a backup alternate source.

I thought that someone sold a special tool that would do the job? Maybe i heard wrong?