The Bartow HILV system

[P Bellamy]

Chugging through that thread it seems the cones are temporary portable units, so seeing them where they are in the earlier photos makes sense if they are being used as an AAF equivalent of Glim lamps.

...goes searching for info on the AN/S-2 lighting system....

Edited to add:
AN-S-2
Set, Portable Field Lighting
TO 08-20-11

(All WWII AAF airfield lighting-related Technical Orders are numbered 08-20-xx, but so far trying to get a straight answer from any of the US archives as to which of them hold the copies is an uphill struggle... )

TTFN,
PB

[P Bellamy]

Haven't found TO 08-20-11 yet, but here's a link to the 1970s version of the system: TB-43-0149 Light Set, Operational Area, Aircraft: 1-1/2KW

All the best,
PB

[P Bellamy]

I was back at the Big Dig site this weekend, and in a new trench adjacent to the last one I found some HILV parts.

One inner glass retaining ring with dataplate (Serial number 44-13496), and a fairly complete, if tatty, lower bowl with internals.
I'll get some photos as soon as I unload the car of finds.

TTFN,
Paul

[P Bellamy]

Some quick snaps of the bowl assembly prior to cleaning:



More items inside than Graham's or Parham's examples:



Closeup showing the cooling fan:



All the best,
PB

[Carnaby]

More items inside than Graham's or Parham's examples:

Interested in this. Wonder why examples seen to date have been cannibalised.

That fan is bigger that I thought it would be.

Bulbholder - is it a bayonet or a screw fitting (Not convinced mine is original)?

Graham

[P Bellamy]

Sadly the central bulbholder was missing.

To the side is mounted this fitting:



Not quite sure what it is though.
The slots on the sides aren't for a bayonet type fitting, being plain rectangular cutouts.

All the best,
PB

[P Bellamy]

Two of the surviving decals on the inside of the bowl:





From what I've been able to expose, the entire unit seems to have been painted Olive Drab inside and out, with what appears to be a top coat of red on the outside.

All the best,
PB

[Carnaby]

From what I've been able to expose, the entire unit seems to have been painted Olive Drab inside and out, with what appears to be a top coat of red on the outside.

Strange - IIRC the examples I've seen so far have been the WWII equivalent of dayglo orangey-yellow.

Graham

[P Bellamy]

I found another decal, this time on the outside on one of the hinge arms:



I've been using T-Cut on a small area of this arm to remove the rust stain, and the outside is indeed painted Olive Drab, as are most parts inside. Very odd.

Comparing the small section of the central bulbholder that remains with other photos in this thread it would appear that the Parham example retains it's original black-painted holder.

Here's a quick snap of the dataplate after it's first rinse:



All the best,
PB

[P Bellamy]

Sadly the central bulbholder was missing.

To the side is mounted this fitting:



Not quite sure what it is though.
The slots on the sides aren't for a bayonet type fitting, being plain rectangular cutouts.

All the best,
PB

The remnants of the central bulbholder in my lamp look very similar to the one in the Parham example, so that's probably the best bet to inspect.
Still can't find out what the other fitting is though.

All the best,
PB