Bachmann Online Forum

Discussion Boards => HO => Topic started by: chasbush on May 04, 2023, 10:14:32 PM

Title: USRA light pacific driver diameter
Post by: chasbush on May 04, 2023, 10:14:32 PM
What is the driver diameter of the Bachmann HO USRA light pacific?
Title: Re: USRA light pacific driver diameter
Post by: Yard Master on May 05, 2023, 09:18:43 AM
Hi chasbush,

Are you interested in the diameter of the prototype or the HO model?

The prototype driver diameter for the USRA Light Pacific is 73 inches. On the model this scales to about 2 cm/.78 inches.
Title: Re: USRA light pacific driver diameter
Post by: chasbush on May 11, 2023, 10:44:04 AM
Quote from: Yard Master on May 05, 2023, 09:18:43 AMHi chasbush,

Are you interested in the diameter of the prototype or the HO model?

The prototype driver diameter for the USRA Light Pacific is 73 inches. On the model this scales to about 2 cm/.78 inches.
Title: Re: USRA light pacific driver diameter
Post by: chasbush on May 11, 2023, 10:50:10 AM
I am interested in the model driver diameter. I wish to see if this engine is a candidate for kitbashing into a lackawanna freight pacific, which had 69" driver diameter. On my scale rule 2cm is exactly 69" making this model a good candidate.
Title: Re: USRA light pacific driver diameter
Post by: Terry Toenges on May 11, 2023, 01:08:36 PM
I use an online program to figure model dimensions.
https://scalecalculator.com/
That says: 69" is 2.01 cm
73" is 2.13 cm
78" is 2.28 cm
Title: Re: USRA light pacific driver diameter
Post by: trainman203 on May 11, 2023, 02:28:55 PM
I love low-drivered freight Pacifics. The New York Central had them, the Illinois Central had them.

The Gulf Coast Extension still has them. Being my layout, of course!

And there is an example operating this very day!

https://sugarexpress.com/history/

And that's not all! They have removed this one from static display and are restoring it to operation as well! The great  news is that this is the prototype that the Bachmann model is patterned after.

https://en.m.wikipedia.org/wiki/Atlantic_Coast_Line_1504