It was part of the original searchlight frame. In fact, most of the searchlight
frame is underslung from the mobile home frame (that's what I am assuming this
is) that carries the searchlight and the generator.

Oddly, the rear crossmember is the ONLY aluminum frame piece. All the remaining
Sperry frame pieces are steel. The only other significant aluminum piece is the
searchlight drum itself, which is cast aluminum.

JVHR

--- In Fortmilesha@yahoogroups.com, Rob <rowanart@...> wrote:
>
> hey gang, i know i dont chip in here a lot, but i do read all the emails..i
promise.
>  
> about the rear crossmember on the searchlight trailer being aluminum...
>  
> was it part of the original searchlight trailer frame? they were originally
two separate trailers, and for modern convenience, they mounted both together on
the current frame. last i looked the original trailer frame was mounted directly
to the current frame which may account for the difference in material??
>  
> Rob
>  
>  
>  
>  
>
> --- On Fri, 2/10/12, John <jvhroberts19702@...> wrote:
>
>
> From: John <jvhroberts19702@...>
> Subject: [FMHA] Got a LOT done this week!
> To: Fortmilesha@yahoogroups.com
> Date: Friday, February 10, 2012, 8:10 PM
>
>
>
>  
>
>
>
> In no particular order...
>
> Fred, Steve, Jack, et al, worked on the bifold doors. The first panel (of 4)
is completed, and the second one is well on its way! These things look amazing!
>
> Fred also completed the first commo recess cover, and all it needs now is
paint. Also, looking amazing!
>
> Fred's been busy! He also replaced the rear cross member on the searchlight.
For some unfathomable reason, it was aluminum, with riveted steel gussets. Well,
galvanic corrosion had its way, and the aluminum lost. Fred fabricated and
installed a steel replacement, all welded in nicely, and that worry is done
with!
>
> Rick and Tim came down today, and installed our new ($$$$!) radiator into the
searchlight. All done! We fired it up today, and lit up the world's brightest
flashlight! This was in the south gun room, with all the doors to the building
open. Worked like a champ! We didn't flush the cooling system, as the old
coolant was very clean. Right now, there's straight water in the thing, awaiting
antifreeze. The water looked quite clean, so, we're good to go! The searchlight
can now be moved out of the gun room! However, it does need Joe K's spray can
expertise to fix up the paint job after such a major operation.
>
> The HVAC installation is progressing, the ERV is in the muffler gallery, and
all the heat pumps for this particular part of the contract are all in the
building! This is also moving along nicely.
>
> All the cable chase covers are now aligned, and ready for new paint, which we
also have.
>
> I am sure I forgot some things, but overall, a really good week!
>
> Hats off to all that make this happen!
>
> JVHR
>