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While the Atlas 9" turntable indexes at 30 degree increments it can be altered for 15 degree also. Carefully cut the outside rim to allow the flanges to pass thru. The wheel face will ride on the outside rim. This will not index but can be manually aligned to give access to the extra stalls desired.
On Tuesday, May 17, 2022, 12:48:08 PM EDT, Blair Smith <smithbr@...> wrote:
Well, the '75 roster would be GP7/9 and SD40/SD40-2, the only
difference might be the number of functional GP7 units, as they
slowly aged out, and before the rebuilds in '78.
The Atlas TT idea is interesting, but I've already got the 90'
Walthers (early) product. Because of the number of tracks needed
internally, I wanted a 15 degree increment TT. IIRC, people were
sadly disappointed with this Walthers item(but the problems
related to a mickey mouse drive add-on, mostly); I got it for a
trade on an President's Choice IHC 4-8-2(returned from a nephew
when he grew up, was in rough shape), so I figured I "won", as
steam just isn't of interest to me. I may well us it as is, with
some form of manual crank and optical sensing for position so I
can access the tracks for storage. But it's a long way in the
future, as we're just beginning to think about starting laying
track south of Hawk, probably around Christmas. 300' of mainline
later, we'll be entering Sault, it's hard to imagine that will
happen before the fall of 2023.
I have portions of the Steelton roundhouse and backshop drawn up
in CAD, but it's nowhere near detailed enough yet for use as a
plan. My plan is/was to make the roof removable, using magnets
for retention and small brass corner brackets for alignment.
Hadn't gotten far, though; looking at Morgan Turney's interior
photos, along with mine, makes me think I want to fabricate a
bunch of steel trusses to form the structure of the roof, with the
six peaks, and make that whole structure rigid enough that it
should lift off as a unit. But that's all providing I don't make
other arrangements along that wall, or decide to forgo the
enginehouse completely to allow more yard. All conjecture at this
I'm busy now until 5, but I hope to return to the train computer
this evening and retrieve the loco assignment sheet and stringline
On 2022-05-16 21:40, David Stewart
30° was the old Atlas 90' decked turntable. I was
thinking of starting with that.
I would be interested in your engine assignment
table - although the '75 roster was a little different than
yours. (But I picked up a gp38 at a decent price, I will
probably put it on passenger train service).
I was thinking of using Walthers Union Shovel
and Crane, triple wide and double long, approximately
20"x20". I would need 3 kits for walls, and create more roof
(or only half cover it).
On Mon, May 16, 2022, 9:25 PM
Blair Smith <smithbr@...
Well, I once mapped out how one might utilize the loco
fleet for the 14 trains on the 1982 lineup, assuming
certain assignments for certain trains. It looked to me
like, if the whole lineup was rolling, there'd only be a
couple of units left in the yard. By 1980, they were down
to the 9 rebuilt GP7's, a GP9, a handful of
less-than-reliable GP7 units that didn't get rebuilt, and
the 9 SD40 and SD40-2s. There was a fair presence of
units semingly stationed at Hawk regularly, too - lots of
picture evidence of long SD lashups in the yard in the
early morning/ evenings. So I doubt there were a lot of
idle units, except over night when there are only a couple
of trains on the go. Of course, in the business
downturns, the 40's went leased to the CPR as well, so
Somewhere I've got a stringline that shows this, sort of,
along with an assignment spreadsheet to back it up. I'll
see if I can dig it up tomorrow, bug me if you see
As for the TT, I get what you mean now. The drawing in
Forbes is interesting. (not sure where the 30 degrees is
coming from, read on).
If the spacing of the tracks were regular, I'd say there
were 24 tracks, on 15 degree spacing. But there is some
variation in the spacing, and of course they omitted one
side of the building, so six tracks don't exist within the
building. Of the tracks that existed, 2 lead through to
the backshop, 12 are full length, and 4 are shorties,
likely only for storage/maintenance of motor cars,
temporary storage for a truck or two maybe, and similar.
So, a 12-stall building.
On 16/05/2022 20:51, David Stewart wrote:
Blair, my appologies, let me explain.
The 15° turntables with 2.2 inch track
clearance means that the closest the engines could
park is equivalent to 120' turntable, which is the
size they often are. (That was in my mind on previous
But, the 30° turntables would have
clearance at 64' - much smaller than the typical 90',
so you can certainly gain from shrinking this size of
turntable. Like you say, that provides more parking
length. I like it!
Any idea how complicated that is?
As to the SD40 in Steelton, I don't know
what normal operations were.
Did the southbound crew drop the train
and hook up to the ready northbound? I gather from my
gleanings that northbound was the start of the shift,
so the proper caboose would be placed on the track
first. With it being a new crew I supposed it would
be a new power group, thus the engines themselves
would have a layover. Much of this is speculation and
On Mon, May 16, 2022,
7:26 PM Blair Smith <smithbr@...
Certainly, I'll be trying it before deciding. Of
course, adding 10' of diameter reduces each stall
track by 5', if I build it to scale. Then again,
I suspect I'd mostly be burying GP7/9s in there
anyway, the SD units will either be in service, or
leased to the CPR via Franz or SSM connections.
The GP38-2s technically shouldn't exist on my 1980
Cruising the web, I see:
"The SD40 has a length of 65 feet, 9 inches
whereas the SD40-2's 68 foot, 10 inch frame..."
So either would easily fit on an 80' table, it's
just that you need exacting control to get them on
without under/overshooting the process,
particularly as you'd be doing it 'blind'. Need
either a small camera, or some well-positioned
sensors for feedback.
On 16/05/2022 19:10, David Stewart wrote:
If you try an SD40 on the
turntable and spin it, you might find that
parking it properly is a challenge on a less
than 90' table. And you don't really gain
space, because the track clearances don't
On Mon, May
16, 2022, 7:02 PM Blair Smith <smithbr@...
I said post-2000, but I can really only
say between 1998 and 2001, based on my
The real TT was 80' 3", according to that
drawing; I haven't seen a usable one at
that diameter in HO. I picked up a
cheapie Walthers 90', which I may try to
reduce and build a pit for, or use as is,
we'll see. Right now, my plan for the
enginehouse has it as a half-structure
against a wall(other side of that wall is
my workbench and mech room); that has
potential for access from the back. But
building that far south may be a year or
three away, depends on circumstances.
On 16/05/2022 18:42, Blair Smith wrote:
West side through tracks, post 2000. I
have photos from before that was
installed, and I first visited in 1993.
Through track across the TT, exiting on
the North side - shows faintly in plate
26b of "Algoma Central Railway", by O.S.
Nock, which was printed in 1975; the
photo is undated, but presumably from
before that time.
Do you have the building floorplan,
which was published in "Enginehouses
& Turntables on Canadian Railways
1850-1950" by. E.F. Bush?
from 1911 build.
On 16/05/2022 18:22, David Stewart
Has anyone modeled the
engine house with turntable? I am
hoping to start on it shortly. I am
planning to use the 11 track atlas
turntable to save space. Also I will
only have single entrance track from
the south, and single track to the
I want to have a
lift off roof, for many reasons.
I'm aiming for 1975,
and have a couple questions:
When was the west
side straight through car servicing
When was the north
exit (to the west of the engine
maintenance building, from one of
the turntable spurs) created?
Thu, Apr 14, 2022, 11:01 PM Kris
about the mill spur there. In
the winter of 2006 we took the
'Tracks to Trails' train to
Hearst. When we got to Limer,
the train stopped and backed up
the spur. A few minutes later, a
northbound freight backed up
past the switch and stopped. The
passenger train then proceeded
north. I'm not sure how many
people got off at Hawk Jct, but
a brand new vaccum cleaner (in a
box) was unloaded from the
------ Original Message ------
Sent: Thursday, April 14, 2022
[AlgomaCentralModeller] Wawa OSB
Yes the mill is just south of
limer on the acr