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Better tune up those guessers!
Posted: Fri Jan 02, 2015 4:54 pm
by geneb
Here's a test part for a project I'm looking into. You're going to have to be one hell of an airplane nerd to identify this. I'll give you a hint - it's for a WWII era fighter.
[img]
http://www.geneb.org/images/casting.jpg[/img]
g.
Re: Better tune up those guessers!
Posted: Fri Jan 02, 2015 5:05 pm
by mhackney
Is it a bushing/mounting plate for a pushrod, perhaps for the rudder or stabilizer?
Re: Better tune up those guessers!
Posted: Fri Jan 02, 2015 5:12 pm
by geneb
Nope.
NEXT!
g.
Re: Better tune up those guessers!
Posted: Fri Jan 02, 2015 5:15 pm
by KAS
mount for a flight yoke?
Re: Better tune up those guessers!
Posted: Fri Jan 02, 2015 5:17 pm
by bot
Antenna mount

Re: Better tune up those guessers!
Posted: Fri Jan 02, 2015 5:42 pm
by Khalid Khattak
Don't know about the crafts but i like the neatness of the printed part
Re: Better tune up those guessers!
Posted: Fri Jan 02, 2015 5:57 pm
by Tonkabot
It holds a checklist (or something) at either a landscape or upright position.
Re: Better tune up those guessers!
Posted: Sat Jan 03, 2015 4:02 am
by Eaglezsoar
Some sort of gun mount?
Re: Better tune up those guessers!
Posted: Sat Jan 03, 2015 4:43 am
by Eric
Bracket for a cockpit light? Probably UV if so.
Re: Better tune up those guessers!
Posted: Sat Jan 03, 2015 10:02 am
by oklok
Wow nice quality on your picture

Re: Better tune up those guessers!
Posted: Sat Jan 03, 2015 12:27 pm
by barry99705
Eric wrote:Bracket for a cockpit light? Probably UV if so.
I think you mean IR, and light mounts are way smaller on aircraft.
This looks kinda like an engine bulkhead mount, but that's not quite right either.
Re: Better tune up those guessers!
Posted: Sat Jan 03, 2015 2:10 pm
by Mac The Knife
barry99705 wrote:Eric wrote:Bracket for a cockpit light? Probably UV if so.
I think you mean IR, and light mounts are way smaller on aircraft.
This looks kinda like an engine bulkhead mount, but that's not quite right either.
I was going to go with a seat mount in a P 51, until I looked closer at the at the picture of the cockpit.
Re: Better tune up those guessers!
Posted: Sat Jan 03, 2015 4:19 pm
by precisionpete
I'm going with umbrella holder.

Re: Better tune up those guessers!
Posted: Sat Jan 03, 2015 7:07 pm
by Eric
barry99705 wrote:Eric wrote:Bracket for a cockpit light? Probably UV if so.
I think you mean IR, and light mounts are way smaller on aircraft.
This looks kinda like an engine bulkhead mount, but that's not quite right either.
No, I meant UV, since WW2 era was specified and most instruments didn't have integral lighting. A dimmable UV light was used to fluoresce the paint on the instruments for night-flying. Radium paint had a dim glow of its own, but it brightened up nicely under UV light. Also, radium paint was used less late in the war (in some air forces, anyway), as there were cheaper paints that would also fluoresce under UV. Most of us have had fun with blacklight and paint at some point in our lives.
Re: Better tune up those guessers!
Posted: Sun Jan 04, 2015 9:01 am
by Khalid Khattak
A motor mount?
Re: Better tune up those guessers!
Posted: Sun Jan 04, 2015 11:06 am
by barry99705
Eric wrote:barry99705 wrote:Eric wrote:Bracket for a cockpit light? Probably UV if so.
I think you mean IR, and light mounts are way smaller on aircraft.
This looks kinda like an engine bulkhead mount, but that's not quite right either.
No, I meant UV, since WW2 era was specified and most instruments didn't have integral lighting. A dimmable UV light was used to fluoresce the paint on the instruments for night-flying. Radium paint had a dim glow of its own, but it brightened up nicely under UV light. Also, radium paint was used less late in the war (in some air forces, anyway), as there were cheaper paints that would also fluoresce under UV. Most of us have had fun with blacklight and paint at some point in our lives.
Cool! I didn't know that!
Re: Better tune up those guessers!
Posted: Sun Jan 04, 2015 12:27 pm
by DavidF
Its Green....

Re: Better tune up those guessers!
Posted: Sun Jan 04, 2015 1:38 pm
by nitewatchman
A Cockpit Relief Tube Mount from a P-51E Variant produced by North American between June 26th, 1944 and August 5th, 1945.
Re: Better tune up those guessers!
Posted: Sun Jan 04, 2015 5:12 pm
by geneb
I'll give you a hint - it's German.
g.
Re: Better tune up those guessers!
Posted: Sun Jan 04, 2015 9:55 pm
by teoman
Stuka?
Re: Better tune up those guessers!
Posted: Tue Jan 06, 2015 11:02 am
by geneb
[img]
http://www.geneb.org/109k/new-build-panel.jpg[/img]
Now, which airplane? (and no fair looking at the image source.

)
g.
Re: Better tune up those guessers!
Posted: Tue Jan 06, 2015 11:58 am
by jdurand
Cigar holder?
Lamp for dash instruments?
That's an older plane than even my father flew, so haven't see the inside of one.
Re: Better tune up those guessers!
Posted: Tue Jan 06, 2015 12:22 pm
by Tonkabot
I cheated. There is a clue in the image name, and from there an easy guess to plane model number, and from there google images shows plenty of photos.
It's a holder for something

(it seems many figured that out)
Anyway I didn't know they existed back then. does it actively show info like a modern one?
Re: Better tune up those guessers!
Posted: Tue Jan 06, 2015 12:32 pm
by jdurand
Radio direction finder readout? You'd need a loop outside the plane with a crank or motor to turn it?
No, that should be built in like the other gauges.
Amelia Earhart with her loop
[img]
http://timeandnavigation.si.edu/sites/d ... 1055qm.jpg[/img]
Re: Better tune up those guessers!
Posted: Tue Jan 06, 2015 1:46 pm
by geneb
It's a mount for a Revi 16D reflector gunsight.
Tonkabot - Reflector gunsights are very simple devices. All it does is project a collimated image of a target reticle on the glass. Here's an excellent write up on how they work:
http://en.wikipedia.org/wiki/Reflector_sight
At some point I'll be printing a gunsight as well.
g.