John,
Good report. That make sense. They did look to be horizontal,
rather than vertical, didn't know they could be moved.
As you start looking at shot from the 70's a lot of F's do not have
any carbody filers at all. Must not have really needed them that
much. BN replaced a lot of rusted out panels on these units and
the outcome was usually a plain flat side. Sort of like that vent
behind the cab door on E7's. They were built that way but by the
early 70's very few units still had them.
Russ
----- Original Message -----
From: <railbass@a...>
To: <BRHSlist@yahoogroups.com>
Sent: Wednesday, 19 March, 2003 11:53
Subject: Re: [BRHSlist] CB&Q 169A
> F7A #169 was a Phase I F7 with four horizontal louver sets in the carbody
> side
> panel. It appears that three of the four sets have been folded down and
> closed for some reason, but the fourth set has been kept open. Could it be
> that leaving all four sets of louvers open was creating some type of
> ventilation problem, such as too much cold air for the engine? Closing these
> louvers seems to be the only external modification to this otherwise stock
> early F7A. The external change for later model F7s and F9s was that the four
> louver sets on each side became vertical louvers in two double rows, and on
> those with dynamic brakes, the circular fans increased from 36" to 48" in
> diameter.
> - John Manion
> Denver, CO
> > Sharp eye, Russ! Those are the style applied to very late F7s and F9s....
> > must be a spot replacement. Have no idea what the other side looked like
> > when the left side got those louvers.
> > Charlie
> > ----- Original Message -----
> > From: "Russell Strodtz" <vlbg@e...>
> > To: <BRHSlist@yahoogroups.com>
> > Sent: Tuesday, March 18, 2003 1:43 PM
> > Subject: [BRHSlist] CB&Q 169A
> >
> >
> > > Photo in "CB&Q In Color, Volume 3", pages 94-95 shows the
> > > left side of 169A with an odd set of carbody filters. Does
> > > anyone know why or if the right side of this unit looked
> > > the same way?
> > >
> > > Russ
> > >
> > >
> > > [Non-text portions of this message have been removed]
> > >
> > >
> > >
> > >
> > >
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