Absolutely correct! Having worked on high vacuum systems I can attest to the difficulty in getting even CLOSE to a perfect vacuum (zero psi). Atmospheric pressure is usually stated as 14.7 psi (plus

They all had that interesting stencil Tony... Another thing - the cars built in January 1952 (instead of December 1951) had a change in the builder's stencil! :-)

Lovely model, Chuck. Bill Bill McClure www.billmcclure.smugmug.com www.mcclureimages.com

Looking good Gerry, well done Fenton

Chuck That’s a really nice model I like the weathering and reverse Hutchins ends. Paul Doggett. England 🏴󠁧󠁢󠁥󠁮󠁧󠁿

Jerry You have made a great job of the GOM. Paul Doggett. England 🏴󠁧󠁢󠁥󠁮󠁧󠁿

I hope this is meant as a joke that's too subtle for me to get. There isn't any vacuum that exceeds full vacuum, which is 0 psia. No matter how you pump, you don't get less than nothing, because you

You did not include an email address Contact me at jerryglow at comcast dot net

At least the collapsed car with a frame could be moved to a scrapper. The frameless ones would have to be cut up on site. Mark Vinski

Sunshine made a minikit to convert their 42ft car. It consisted of an extra side to splice the sides longer and new ends. No underbody or decals. My

Nice looking model! Wondering how many other builders ran the retainer pipe straight down astride the end ladder. Sure would make it easier to model.

Now if you were to have a tank car built to the minimum required standards, you might be tempted to fill it full of some heavy but free flowing liquid. Something with a suitably low viscosity, like

There are formulas in ASME Section VIII of the Boiler and Pressure Vessel Code that will allow you to calculate, or at least read off a set of curves, the expected maximum external pressure a steel

There are some 52 individual messages concerning K4 decals in our archives. Not sure if this qualifies as "much" discussion. -- Dave Parker Swall Meadows, CA

I use them and they are very good. Fenton -- Fenton Wells 250 Frye Rd Pinehurst NC 28374 910-420-8106 srrfan1401@...

I just finished working on a Sunshine NC&StL 36' rebuilt boxcar. When decaling the yellow stripes, the Sunshine decals fell apart. I decided to order the K4 decals for the 40' NC&StL boxcar to try

Impressive demonstration. If I am reading the vacuum gauge correctly it reads 15 inches of Mercury which is just over 7 PSI which is not much at all. But spread over the entire interior service which

The referenced youtube video misinterprets the trucks gauge (see the image at 0:43). It reads in inches of mercury, not psi. With the gauge designed so that atmospheric pressure is set to read

A vacuum gauge reading minus 27 is not reading pounds per square inch. It is reading inches of mercury that the vacuum can lift. Chuck Peck

Claus Schlund wrote: They pulled a higher vacuum with a vacuum truck. Those are usually used for sucking out clogged sewer pipes and the like and obviously exceed “full” vacuum (14.5 psig). I