F-unit roof detail query

Discuss All Facets of 2-Rail, 1/48 Scale, Model Railroading
User avatar
ScaleCraft
Posts: 5514
Joined: Thu Jan 26, 2012 10:15 pm
Location: Floe Ice, Auntarctica

F-unit roof detail query

Postby ScaleCraft » Sat Sep 19, 2020 1:40 pm

Doing some NP research, found a bunch of photos, FT through F-9, with an appliance on the roof.
No idea. Let's say on NP if you had a 4 penny plain nail, stuck it straight through the roof vertically, centerline, in front of the horns and aft of the windscreens, would be about right for 0. A units only.
I did find a photo of a D&RG F unit with something in the same place, but without the flat, round head (or so it appears).
Funny, I find NO NP models showing that.

Any ideas?

https://www.pwrs.ca/new_announcement_im ... W_5771.jpg
This maybe shows it also without the cap shown in my photo book:
http://www.railpictures.net/images/d1/2 ... 806000.jpg
Dave....collector, restorer, and operator of the finest doorstops

User avatar
Rufus T. Firefly
Posts: 33399
Joined: Wed May 16, 2007 6:52 am
Location: Freedonia

Re: F-unit roof detail query

Postby Rufus T. Firefly » Sat Sep 19, 2020 1:57 pm

Firecracker antenna of some sort?
Alcohol does not solve any problem, but then neither does milk.

User avatar
ScaleCraft
Posts: 5514
Joined: Thu Jan 26, 2012 10:15 pm
Location: Floe Ice, Auntarctica

Re: F-unit roof detail query

Postby ScaleCraft » Sat Sep 19, 2020 1:59 pm

Maybe. The round cap shown in my period photos is strange. SP units and ATSF don't seem to have them.
I was also thinking air brake vent off control stand, but finding data is proving difficult.
Dave....collector, restorer, and operator of the finest doorstops

bob turner
Posts: 11179
Joined: Sat Jan 13, 2007 7:57 pm

Re: F-unit roof detail query

Postby bob turner » Sat Sep 19, 2020 2:06 pm

I vote for antenna. The icycle breakers are distinctive pipes. I think they all had giant cooling fans, so no need for an inefficient slipstream cooler.

E7
Posts: 6758
Joined: Wed Dec 12, 2007 1:35 am

Re: F-unit roof detail query

Postby E7 » Mon Oct 19, 2020 12:47 pm

Definitely antenna. Logical placement out front of anything that would impede signals and close to where the receiver would be in the cab.
"We have met the enemy and he is us!" Pogo Possum

Chris Webster
Posts: 498
Joined: Mon May 25, 2015 7:25 pm

Re: F-unit roof detail query

Postby Chris Webster » Mon Oct 19, 2020 5:02 pm

ScaleCraft wrote:Maybe. The round cap shown in my period photos is strange. SP units and ATSF don't seem to have them.
Antennas were a road-specific detail... and if we are to believe Details West, then SP and ATSF used Sinclair Radio antennas:
Details West RA-214 – Sinclair Radio Antenna, ATSF, SP – HO Scale

I was going to agree with the other posters and say firecracker antenna, but then I went looking for more prototype photos and came across this one:
Railpictures.net #424567
The thing atop #6013D looks more like a 'T' than a firecracker antenna.

User avatar
ScaleCraft
Posts: 5514
Joined: Thu Jan 26, 2012 10:15 pm
Location: Floe Ice, Auntarctica

Re: F-unit roof detail query

Postby ScaleCraft » Mon Oct 19, 2020 5:48 pm

Chris Webster wrote:
ScaleCraft wrote:Maybe. The round cap shown in my period photos is strange. SP units and ATSF don't seem to have them.
Antennas were a road-specific detail... and if we are to believe Details West, then SP and ATSF used Sinclair Radio antennas:
Details West RA-214 – Sinclair Radio Antenna, ATSF, SP – HO Scale

I was going to agree with the other posters and say firecracker antenna, but then I went looking for more prototype photos and came across this one:
Railpictures.net #424567
The thing atop #6013D looks more like a 'T' than a firecracker antenna.

That's it, except my photos have more instances from different angles, the "top" seems to be a round plate. Ground plane would have been on the bottom.
Dave....collector, restorer, and operator of the finest doorstops

E7
Posts: 6758
Joined: Wed Dec 12, 2007 1:35 am

Re: F-unit roof detail query

Postby E7 » Tue Oct 20, 2020 4:22 pm

If you want more info. you might want to try the NP Historical Society or Key Model Imports, who imported an F9 and I think an F3 and FT.
"We have met the enemy and he is us!" Pogo Possum

E7
Posts: 6758
Joined: Wed Dec 12, 2007 1:35 am

Re: F-unit roof detail query

Postby E7 » Tue Nov 03, 2020 2:05 am

Take note that I am totally appalled that you have become a rivet counter! :mrgreen:
"We have met the enemy and he is us!" Pogo Possum


Return to “O-Gauge, 2-Rail, Model Railroading”

Who is online

Users browsing this forum: No registered users and 3 guests