Turn & bank indicator indicating opposite turns

[poadeleted20]

They must have put the battery in backwards.

That would show up in other ways -- really fast.

 

[poadeleted20]

I would have thought a PP could fix this under the "plug and play" rules.

The "plug and play" preventive maintenance rule applies only to "self-contained, front instrument panel-mounted navigation and communication devices that employ tray-mounted connectors that connect the unit when the unit is installed into the instrument panel," The T&B instrument isn't such a device.

 

[Jaybird180]

I guess, I should have a FAR/AIM bedside when I even think about aviation. (Sarcasm)

 

[Silvaire]

...It always bothers me when people call the Turn Indicator a Turn and Bank...

While I understand your point that is the nomenclature the instrument was given. I suppose that when they adopted the little airplane symbol to replace the needle they felt it would be prudent to call it a Turn Coordinator and drop the "Bank" so as to prevent anyone from getting the wrong idea of what they were looking at.

 

[Dan Thomas]

And of course the "regulator" was nowhere to be seen. THere ARE NO REGULATORS in civilian single-voltage instruments. YOur military background notwithstanding, we do NOT use regulators in civilian instruments.

THanks,

Jim

In this video clip:

https://www.youtube.com/watch?v=QXJWJcwToHI&context=C30c4ffdADOEgsToPDskKSCTHOm8efo2VjZLiPDVZg

at 1:10 there's a shot of a centrifugal switch on the rotor.

Dan

 

[kgruber]

 

[flyingron]

The "plug and play" preventive maintenance rule applies only to "self-contained, front instrument panel-mounted navigation and communication devices that employ tray-mounted connectors that connect the unit when the unit is installed into the instrument panel," The T&B instrument isn't such a device.

Hey, if I follow that wire long enough I'll get to the landing light

 

[flyingron]

He said "electronic regulator" would be damaged by the reverse polarity. There's NO electronic regulator. The centrifugal switch is not an electronic regulator, it's purely mechanical-electrical. Further, it gives not a hoot as to which way the gyro is spinning which is why it worked just fine (albeit backwards).

 

[dtuuri]

It always bothers me when people call the Turn Indicator a Turn and Bank. Turn and Slip is closer. It really doesn't show bank directly.

I understand that sentiment, but I think the original theory of instrument flying taught by Howard Stark had the pilot turning with rudder to achieve the standard rate then banking to center the "ball-bank indicator" (inclinometer), hence, "turn and bank". Sperry originally dubbed the T&B a "Turn Indicator" though. There's some interesting weather observations in the above link re: flight through T-storms.

dtuuri