Turn & Bank Indicator
Moderators: GAHorn, Karl Towle, Bruce Fenstermacher
Turn & Bank Indicator
I have a 1953 C-170B. The needle portion of the T&B indicator is frozen. I think its electrical unit but can't tell. Any ideas on its power source?
Re: Turn & Bank Indicator
It is likely* powered by a self-reset circuit breaker mounted beneath/behind the panel…which looks like a small1-inch round black bakelite hockey-puck. It usually also powers the stall warning. Check to see if your stall warning horn/light works…. if so, it’s probably not the C.B. (On the other-hand, if the T&B is internally-shorted …it may be de-activating/“popping” the C.B. …and if so, would prevent the stall Warning actuating also. In such case, if you electrically isolate/disconnect the T&B then, obviously, you can determine if it’s the C.B. or the T&B.)
* Some aircraft have been modified to utilize ordinary manually-resettable C.B.s.
* Some aircraft have been modified to utilize ordinary manually-resettable C.B.s.
'53 B-model N146YS SN:25713
50th Anniversary of Flight Model. Winner-Best Original 170B, 100th Anniversary of Flight Convention.
An originality nut (mostly) for the right reasons.
50th Anniversary of Flight Model. Winner-Best Original 170B, 100th Anniversary of Flight Convention.
An originality nut (mostly) for the right reasons.
Re: Turn & Bank Indicator
Very good information. Thanks for sending me this. I'll pass on to my shop.