That appears to be a Master Contactor, which the Remote Contactor was connected to.
The counter is possibly a later addition, and may be completely unrelated to its original purpose.
When these items became available on the surplus market they were adapted for all sorts of uses.
I was reading a...
I've gone back to this panel for a closer look and lifted a flake of loose paint from the edge. Bear in mind this is a stainless-steel panel, not aluminium.
There is a spray-painted coat of OD FS34084 directly onto the metal, there is no primer coat underneath.
On top of this is a...
There was a big debate on the 3.7" vs 88 AA in the AT role a few years back.
I can't recall much of the detail, but it boiled down to the 88s having a welded carriage which could withstand horizontal fire, but the 3.7" with it's riveted carriage would shake itself apart if used repeatedly in the...
D82081 is the one of the part numbers for the T-23 type Sherman turret.
A photo of the casting numbers on the real Sherman the mouldmakers evidently used for reference can be seen here:
http://www.usarmymodels.com/ARTICLES/Sherman%20Corner/Turrets/T23%20Continental%20Hubbard%20Markings.jpg...
D82081 is the Ordnance Department part number for the turret casting.
The H in a C is the foundry mark of who cast the turret, in this case the Continental Foundry and Machine Co.
The LO is thought to indicate the casting has been heat treated, and the rest should relate to the serial number of...
Sperry A-2 series on the B-17, A-13 series on the B-24.
Both are identical from the top of the hangar cradle downwards, the only difference being the support rod; fixed on the B-17, hydraulically retractable on the B-24.
The AAF manual for these is AN 11-45G-1 Handbook of Instructions for...
Just to confirm, the first photo shows M17 500lb Aimable Incendiary Cluster Bombs, each containing 110 seperate M50 4lb magnesium incendiary bombs which were discharged at a set time after release.
All the best,
PB
Good file there.
The AN/APS-15 was the main type of H2X PFF/Mickey bombing radar used in the ETO/MTO.
The AN/APS-13 was a tail warning radar fitted to P-51s, basically a US-built version of the RAF's Monica system.
All the best,
PB
Certainly the complete innards of an AN/M2 .50 cal. Browning. Very nice find.
Sadly that only narrows the aircraft type down to virtually any WWII US-manufactured combat aircraft.
All the best,
PB