The Reading Modeler Forum :: Topic: M1sa vs. M1sb...? (1/2)

Welcome, Guest

Forum

The Interchange: The Reading Modeler Forum

Modeling the Reading: General Discussion

M1sa vs. M1sb...?

This board is the place where questions and information specific to MODELING the Reading Company, its equipment and operations can be shared - questions like "What was the window arrangement of AF Tower in Alburtis?" and "What color paint do YOU use to paint the Reading's cream-and-brown buildings?" We also want to hear about YOUR Reading modeling projects!

Page:
1
2

TOPIC: M1sa vs. M1sb...?

M1sa vs. M1sb...? 11 years 1 month ago #754

Wowak
OFFLINE
Engineer
Posts: 101
Thank you received: 8

According to the drawings I have, the M1sa had 61 1/2" drivers and the M1sb had 55 1/2" drivers, but looking through prototype photos (Like at www.northeast.railfan.net/rdg_steam1.html ) there seems to be no rhyme or reason as to which driver size the M1sb had. What's the deal here?

For background, I'm planning to model one using the running gear from a Lionel "Baby" Berkshire (like the one that comes with their "Polar Express" set) and the drivers are close enough to the 55 1/2" size to work, but I'm clueless as to which cab number had those wheels (other than the ones where it's obvious in found photos.)

Building O-scale models of Reading steam power

brianwowak.wordpress.com/

The administrator has disabled public write access.

M1sa vs. M1sb...? 11 years 1 month ago #755

JoannaBill OFFLINE Road Foreman of Engines Posts: 422 Thank you received: 63	According to Pennypacker's "READING POWER PICTORIAL" Class M-1sb encompassed numbers 1727 to 1756, when built by Baldwin. Some could have been modified over the years, but generally his information is accurate.
	The administrator has disabled public write access.

M1sa vs. M1sb...? 11 years 1 month ago #756

Wowak OFFLINE Engineer Posts: 101 Thank you received: 8	I agree that that number range were considered M1sbs, but just looking through the pictures on northeast.railfan.net it's quite clear that not all of the M1sbs had the 55 1/2" drivers. I'm looking for clarification on how that came to be and why, i.e. were only some built with the smaller drivers? Were some retrofitted with the larger drivers?
	Building O-scale models of Reading steam power brianwowak.wordpress.com/ The administrator has disabled public write access.

M1sa vs. M1sb...? 11 years 1 month ago #757

Casey OFFLINE Conductor Posts: 209 Thank you received: 57	It might be road duty vs yard or helper duty, and the random number could be just that. Smaller drivers are all about torque and grinding pulling power. Good for hump duty or pushers which I know I have seen pictures I think in Reading power pictorial of M-1s as helpers. But originally when built they were heavy duty fast freight engines, of their time.
	flickr: www.flickr.com/photos/60361449@N02/ youtube: www.youtube.com/channel/UCVGhlhG5y0JL__5Y-GnID5g The administrator has disabled public write access.

M1sa vs. M1sb...? 11 years 1 month ago #770

Wowak OFFLINE Engineer Posts: 101 Thank you received: 8	Well that all makes sense, but it doesn't explain why the small-drivered engines are scattered at random within the class.
	Building O-scale models of Reading steam power brianwowak.wordpress.com/ The administrator has disabled public write access.

M1sa vs. M1sb...? 11 years 1 month ago #771

Casey OFFLINE Conductor Posts: 209 Thank you received: 57	I think it could just be random based on location, or just what needed to be over hauled or in storage at the time they decided to convert them, not knowing the answer. However I do know that they decided to put the air pumps in the front of the engine because it was back heavy and to counter act it the put the 2 pumps and a big lead brick on the pilot.
	flickr: www.flickr.com/photos/60361449@N02/ youtube: www.youtube.com/channel/UCVGhlhG5y0JL__5Y-GnID5g The administrator has disabled public write access.

Page:
1
2

Forum

The Interchange: The Reading Modeler Forum

Modeling the Reading: General Discussion

M1sa vs. M1sb...?

Time to create page: 0.116 seconds

Today's Image

Did You Know?

March 8, 1900

Construction of the new P&R locomotive shops at Reading, PA began.

Downloads

Operations Information

A variety of Reading Company operations related documents, etc. that may be of use in your modeling efforts.

Operations Paperwork

A variety of Reading Company operations paperwork, such as train orders, clearance forms, etc. that will help you operate your Reading layout in a prototypical manner.

Timetables, Rulebooks, Etc.

Public Timetables, Employe Timetables, and Rulebooks that provide much useful operational information.

Modeling Goodies

Signs, billboards, and other FREE goodies for your use. We ask only that you help spread the word about The Reading Modeler!

Rolling Stock Reference

Downloadable reference documents on the various classes of Reading Company Freight and Passenger rolling stock.

Thanks for Your Support!

If you find the content on The Reading Modeler valuable, won't you please consider supporting our efforts? Your donation will help to offset operating costs and acquire new material to share on the site. Thank you!