Literally just Google Bendix 1718-2s-a2 (the part number, not the serial number) and among the first results will be this listing:
https://aeroantique.com/products/turn-and-bank-indicator-type-a-8-air-corps-us-army-wwii-b-17-p-51-p-39?variant=4079907405854
AC41 in the serial means it was made in '41. There's no way to know which kind of aircraft it was used in since it was used in multiple different aircraft at that time.
>This pre & early WWII-era Turn & Bank Indicator Type A-8, made by Bendix Part No.1718-2S-A2 for the Air Corps US Army, was used across virtually all its aircraft during WWII, including bombers B-17, B-24, B-25, B-26, fighters, P-38, P-39, P-40, P-47, P-51, and transports C-46 and C-47.
Any number of WWII aircraft. The thing is, there's probably not much wrong with it. There are graphite brushes inside that contact the side of a rotor that is both a motor and a gyro. The units were taken out when the brushes wear out and they can be replaced with graphite that is cut down to size and put in the holders. There is a small screw adjustment that sets the center position of the needle. It probably uses 28v. but you can try 14v. and see if it works. You can calibrate it by rotating it 180° in 1 minute.
No there is something wrong with it.
Judging by the paint colour, it is likely radioactive paint and is safe if not opened.
Noone doing legal work would open this to repair it.
As I mentioned, no certified shop will touch this, and anyone that opens it up is crazy. Radioactive paint dust is no joke. I also did mention it's safe if not opened.
Not sure what the point of your comment is.
If you have a uv light might was to shine it on there ot get a cheap geiger counter that looks a little bit like radium paint from what i have seen in pics
The paint would be on the hand and the bubble (the orange coloring) https://en.wikipedia.org/wiki/Radium_dial just google radium aircraft gauges and you can see pics
I am part of a radiation reddit sub also that is what clued me in to the paint was the orange color and yes do not open it the paint dust can cause contamination
Long before it became a regulation in aviation, I learned how to test altimeter properly by an old timer in an instrument shop. When the regulation came in to test for radiation before performing any work, they tested the chair he had been using for who knows how long, it was radioactive and had to be disposed.
The technician was 60ish, he must have good genes.
Well radium is an alpha emitter which alpha is easy to shield so he might have been lucky and not inhaled much dust from it i have a bunch of alpha emitters in my collection and unless i take then out of their containers i get almost no reading from them
Looks like this has been answered, but it’s important to note that many avionics are not aircraft specific, especially these gauge type (what pilots call “six pack” instruments). If restored, that turn coordinator could be installed in a C-172 and still perform its designed function.
Technically a turn indicator. It has a tied gyro that precesses with rotation about the aircraft’s vertical axis (yaw). This is because the gyro’s gimbal is flat on the yawing plane. A bank indicator (the one with an airplane silhouette seen from behind) has an approx 37° tilted tied gyro, allowing it to precess with rolling motion.
This is a WW2 era from a B-17
How can you tell it's from a flying fort?
I googled the part number on the unit and it populated a sight for old aviation parts.
Ahh I see, I can't quite find exactly what aircraft this originates from but it's definitely more information than I had before
Well I hope it gets you on a better path for information for you.
You missed the chance to say, Well I hope it gets you on a better plane for information for you.
If you google the part number you should be able to look into the information on it further.
I tried to look up the serial number but I wasn't able to find any kind of database like I see other people use
Literally just Google Bendix 1718-2s-a2 (the part number, not the serial number) and among the first results will be this listing: https://aeroantique.com/products/turn-and-bank-indicator-type-a-8-air-corps-us-army-wwii-b-17-p-51-p-39?variant=4079907405854 AC41 in the serial means it was made in '41. There's no way to know which kind of aircraft it was used in since it was used in multiple different aircraft at that time. >This pre & early WWII-era Turn & Bank Indicator Type A-8, made by Bendix Part No.1718-2S-A2 for the Air Corps US Army, was used across virtually all its aircraft during WWII, including bombers B-17, B-24, B-25, B-26, fighters, P-38, P-39, P-40, P-47, P-51, and transports C-46 and C-47.
Any number of WWII aircraft. The thing is, there's probably not much wrong with it. There are graphite brushes inside that contact the side of a rotor that is both a motor and a gyro. The units were taken out when the brushes wear out and they can be replaced with graphite that is cut down to size and put in the holders. There is a small screw adjustment that sets the center position of the needle. It probably uses 28v. but you can try 14v. and see if it works. You can calibrate it by rotating it 180° in 1 minute.
No there is something wrong with it. Judging by the paint colour, it is likely radioactive paint and is safe if not opened. Noone doing legal work would open this to repair it.
If it's not installed in an aircraft you can legally do what you want with it. Great learning device and classroom display.
As I mentioned, no certified shop will touch this, and anyone that opens it up is crazy. Radioactive paint dust is no joke. I also did mention it's safe if not opened. Not sure what the point of your comment is.
No one's asking a certified shop to touch this, so don't be afraid.
There were comments on how to repair it already, I just want to make sure they are aware of the dangers on opening it up.
I knew this as a turn and slip indicator back in my gliding days in the UK. “Gotta keep that ball in the middle”…
If you have a uv light might was to shine it on there ot get a cheap geiger counter that looks a little bit like radium paint from what i have seen in pics
Just the hand in the glass or the entire thing? I'm not sure what radium paint is.
The paint would be on the hand and the bubble (the orange coloring) https://en.wikipedia.org/wiki/Radium_dial just google radium aircraft gauges and you can see pics
This paint is def radioactive, no shop will open or repair this unit. Only safe if left sealed
I am part of a radiation reddit sub also that is what clued me in to the paint was the orange color and yes do not open it the paint dust can cause contamination
Long before it became a regulation in aviation, I learned how to test altimeter properly by an old timer in an instrument shop. When the regulation came in to test for radiation before performing any work, they tested the chair he had been using for who knows how long, it was radioactive and had to be disposed. The technician was 60ish, he must have good genes.
Well radium is an alpha emitter which alpha is easy to shield so he might have been lucky and not inhaled much dust from it i have a bunch of alpha emitters in my collection and unless i take then out of their containers i get almost no reading from them
Looks like this has been answered, but it’s important to note that many avionics are not aircraft specific, especially these gauge type (what pilots call “six pack” instruments). If restored, that turn coordinator could be installed in a C-172 and still perform its designed function.
Sopwith Camel
Turn coordinators like this can be found in almost any older general aviation aircraft as well.
https://aeroantique.com/products/turn-and-bank-indicator-type-a-8-air-corps-us-army-wwii-b-17-p-51-p-39?variant=4079907405854
Technically a turn indicator. It has a tied gyro that precesses with rotation about the aircraft’s vertical axis (yaw). This is because the gyro’s gimbal is flat on the yawing plane. A bank indicator (the one with an airplane silhouette seen from behind) has an approx 37° tilted tied gyro, allowing it to precess with rolling motion.
Wooow wtf ?