« The Alcove - John Dunn, Consultant, Ambertec, P.E., P.C. | Main | An Assumption of Insecurity - John Dunn, Consultant, Ambertec, P.E., P.C. »

November 28, 2018


Feed You can follow this conversation by subscribing to the comment feed for this post.

stu senator

There is a difference in the specs for the fire box. This probably accounts for the difference in length.

If this was done in ink it was not a fast drawing. In pencil it was a bit easier, in autocad fairly quicker and if the second drawing person had access to the first drawing the length could be changed in about 30 seconds including thinking about it.

Using ink or pencil and not concerned with scale if you had access to the first drawing you would make a sepia (a copy on a blue print on special semi transparent paper) and make the changes on the sepia.

Having used ink, pencil and autocad I much prefer a cad system.


William Denale

The difference is in the firebox as mentioned. Note that one firebox is WAT 1926 and the other AlCO 1925. The note on the AlCO also states a third course. This would refer to the brick lining inside the firebox where the coal and fire were made. The extra two inches is probably the extra course of bricks as firebox lining brick were roughly 2 inches in depth. There is an ALCO technical and Historical Society that may have the detailed specs.

Verify your Comment

Previewing your Comment

This is only a preview. Your comment has not yet been posted.

Your comment could not be posted. Error type:
Your comment has been saved. Comments are moderated and will not appear until approved by the author. Post another comment

The letters and numbers you entered did not match the image. Please try again.

As a final step before posting your comment, enter the letters and numbers you see in the image below. This prevents automated programs from posting comments.

Having trouble reading this image? View an alternate.


Post a comment

Comments are moderated, and will not appear until the author has approved them.

Your Information

(Name and email address are required. Email address will not be displayed with the comment.)


  Learn about our  

 free engineering 

consulting referral 

      service at:


  IEEE Consultant's 

      Network of 

     Long Island


We have over forty 

electrical, electronic, 

mechanical and 

software engineers 

with expertise in more 

than sixty-five categories 

of technology and business. 

All are members of the 

IEEE and adhere to the 

IEEE professional codes 

of ethics. 

No fee is charged for the

referral service. 

Each member is an 

independent consultant 

and negotiates his/her 

own consulting agreement.


Editor: Jerry Brown


John Dunn

Marty Kanner

Murray Kleiner

Dick LaRosa

David Pinkowitz

Carl Schwab

Gerry Bodner

Larry Rachman


Unless otherwise noted, 

reprinting or republication 

of anarticle on this blog is 

authorized by crediting the 

author and prominently 

displaying the following 

sentence at the beginning 

or end of the article,

including the hyperlink to

IEEE Consultant's Network 

of Long Island

"This report is republished 

with permission of IEEE 

Consultant's Network of 

Long Island"



Blog powered by Typepad

Enter your email address:

Delivered by FeedBurner