I received the following from Leo Phillips regarding the E-units set up to
power gallery cars:
As is often the case; I was looking for something totally different but
stumbled on a 12/22/65 memo listing the E units set up for powering the gallery
cars:
Two car service
9937B
9938B
9941B
9945A
9946B
9948A
9948B
9971-74
9976
One car service
9946A
The memo or notice goes on to explain the Maximum # of gallery cars to hook to
the 7200 hundred series power car (5) and the 7300 series (8) to get either to
a 7 or 10 car consist with these particular engines. Notice also states one
copy is to be placed in each power car under glass with out fail.
I sure wish some of the old Aurora/Eola switchman I worked with were still
around to tell us why some power cars ended up on the east end of these small
consists
Leo Phillipp
--- In CBQ@yahoogroups.com, "Charlie Vlk" <cvlk@...> wrote:
>
> I'm leaving the material below attached so this can be put into previous
> message context:
>
>
>
> I recall a discussion at one of the annual meets (with the late Bat
> Masterson???) about the transition on the E7s not being set up as well for
> acceleration of the commuter trains. The Q had a modified control wiring
> arrangement which gave the units more "spunk" that EMD did not approve of
> and I disremember the technical terms. Acceleration from stops is why the
> E7s and EA shovelnoses were not employed for commuter service as soon as
> enough E8s and E9s were available in the pool to provide coverage.
>
> Also, I don't think all the E8 and E9s were set up for powering small trains
> without a power car...field taps???..... I seem to remember that only
> specific units were set up for this service.
>
>
>
> Charlie Vlk
>
>
>
> Chuck and Hol,
>
>
>
> Chuck, your photos were taken in May and June of 1965 which is about the
> time that the 790 series cab gallery cars were introduced. Practices were
> changing at that time. In general, the power car was on the west end, but
> for the short mid day trains, it was probably not considered as important.
> There were, only five or six 7200 series power cars, which had been rebuilt
> from the old 7000 series open platform cars. All of the rest of the power
> cars in the 7300 series were rebuilt from 6100 series six wheel truck main
> line passenger cars; two combines and the rest were full coaches. I don't
> know for certain, but I believe the gen sets in the 7200 cars may have been
> smaller (lighter) and maybe less obnoxious? In any case, on a two car train,
> whether the power car was in front of or behind the other gallery car,
> probably didn't make much difference in terms of smoke and fumes that the
> few mid day passengers would encounter in Union Station.
>
>
>
> The E8s and E9s were set up so that they could power mid day two car
> commuter trains without the use of a head end power car. The 74 volt DC
> auxiliary generators on the locomotives had sufficient power to handle the
> cars. Here is a link that provides a typical example.
>
>
>
> http://rrpicturearchives.net/showPicture.aspx?id=1259393
>
>
>
> As for E7s on commuter trains, after the arrival of the E8s and later E9s,
> the E7s were seldom use in commuter service except occasionally on smaller
> trains as shown in Chuck's photos. The E7s, of course, were used in commuter
> service in the late 40s and early 50s, but as more E8s were delivered, they
> were preferred because they accelerated the longer heavier trains better
> and, therefore, could maintain the schedules more effectively. While the E8s
> and later, the E9s had a little more horsepower, that was only part of the
> story. The E7s were equipped with a 52:25 gear ratio which permitted 117 mph
> operation, but decreased low speed performance (like trying to start a
> automobile in 2nd or 3rd gear). (The 52:25 GR had a minimum continuous speed
> of only 40 mph. Some Q E7s were later converted to 55:22 GR which provided a
> max. speed of 97 mph.) TheQ E8s and E9s, on the other hand, were originally
> equipped with 55:22 GR originally which had a maximum speed of 98 mph and
> minimum continuous speed of 30 mph on the E8 and 33 mph on the E9. Some Q
> E8s were later re equipped with 57:20 GR that reduced the maximum speed to
> 85 mph and lower the min. cont. speed to 26 mph.
>
>
>
> The lower GRs on the E8s and E9s and the minor increase in HP, gave them a
> better ability to quickly accelerate the full nine car commuter trains. I
> doubt that an E7, particularly with the 52:25 GR could maintain the schedule
> with a full size rush hour train.
>
>
>
> Bill Barber
>
> Gravois Mills, MO
>
>
>
>
>
> On Mar 2, 2013, at 6:54 AM, CBQ@yahoogroups.com wrote:
>
>
>
>
>
> <http://groups.yahoo.com/group/CBQ/message/43220%3b_ylc=X3oDMTJwY3A4bmM1BF9T
> Azk3MzU5NzE1BGdycElkAzE3MTI3BGdycHNwSWQDMTcwNjA0MzAwNARtc2dJZAM0MzIyMARzZWMD
> ZG1zZwRzbGsDdm1zZwRzdGltZQMxMzYyMjI4ODY3> Power Car On East End On Dinky
>
>
> Fri Mar 1, 2013 12:10 pm (PST) . Posted by:
>
>
>
> <mailto:czeiler@...?subject=Re%3A%20Power%20Car%20On%20East%20End
> %20On%20Dinky> "chuck.zeiler" chuck.zeiler
>
>
> Hello, I have posted a couple photos at another site that show the power
> cars on the east end of a Dinky. This is somewhat unusual as the power
> cars were typically on the west end, presumably to keep the noise and
> fumes away from boarding passengers in Union Station. The question is:
> Why were the power cars turned around? If this question has already
> been answered, please direct me to that answer, thanks.
> Photo 1 http://www.rrpicturearchives.net/showPicture.aspx?id=1082897>
>
> Photo 2 http://www.rrpicturearchives.net/showPicture.aspx?id=3316121>
>
> Photo 3 http://www.rrpicturearchives.net/showPicture.aspx?id=3394286>
>
>
> <mailto:czeiler@...?subject=Re%3A%20Power%20Car%20On%20East%20End
> %20On%20Dinky> Reply to sender .
> <mailto:CBQ@yahoogroups.com?subject=Re%3A%20Power%20Car%20On%20East%20End%20
> On%20Dinky> Reply to group .
> <http://groups.yahoo.com/group/CBQ/post%3b_ylc=X3oDMTJwOHRjbWhsBF9TAzk3MzU5N
> zE1BGdycElkAzE3MTI3BGdycHNwSWQDMTcwNjA0MzAwNARtc2dJZAM0MzIyMARzZWMDZG1zZwRzb
> GsDcnBseQRzdGltZQMxMzYyMjI4ODY3?act=reply&messageNum=43220> Reply via Web
> Post .
> <http://groups.yahoo.com/group/CBQ/message/43220%3b_ylc=X3oDMTM1bmQyY2o4BF9T
> Azk3MzU5NzE1BGdycElkAzE3MTI3BGdycHNwSWQDMTcwNjA0MzAwNARtc2dJZAM0MzIyMARzZWMD
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> Top ^
>
>
> 4b
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>
> <http://groups.yahoo.com/group/CBQ/message/43221%3b_ylc=X3oDMTJwaDFrYnZlBF9T
> Azk3MzU5NzE1BGdycElkAzE3MTI3BGdycHNwSWQDMTcwNjA0MzAwNARtc2dJZAM0MzIyMQRzZWMD
> ZG1zZwRzbGsDdm1zZwRzdGltZQMxMzYyMjI4ODY3> Re: Power Car On East End On Dinky
>
>
> Fri Mar 1, 2013 2:49 pm (PST) . Posted by:
>
>
>
> <mailto:holpennywagner@...?subject=Re%3A%20Power%20Car%20On%20East%20End
> %20On%20Dinky> "HOL WAGNER" fhw632
>
>
>
> Isn't it pretty unusual to see E7s in suburban service, too? As a far Lines
> West guy, I've always thought the E7s were not regularly used on suburban
> trains.
>
> Hol
>
>
> To: CBQ@yahoogroups.com <mailto:CBQ%40yahoogroups.com>
> From: czeiler@... <mailto:czeiler%40centurytel.net>
> Date: Fri, 1 Mar 2013 17:33:42 +0000
> Subject: [CBQ] Power Car On East End On Dinky
>
> Hello, I have posted a couple photos at another site that show the power
> cars on the east end of a Dinky. This is somewhat unusual as the power cars
> were typically on the west end, presumably to keep the noise and fumes away
> from boarding passengers in Union Station. The question is: Why were the
> power cars turned around? If this question has already been answered, please
> direct me to that answer, thanks.
> Photo 1
> Photo 2
> Photo 3
>
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