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From: "Jim Wilkins" <muratlanne@gmail.com>
Newsgroups: rec.crafts.metalworking
Subject: Re: gauge railway workshop to yard
Date: Sat, 8 Jun 2024 18:25:22 -0400
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"Bob La Londe"  wrote in message news:v42if9$2rc6b$1@dont-email.me...

On 6/8/2024 12:31 AM, Richard Smith wrote:
> While on the topic - if you were renewing railway track in a mine,
> expedience the only concern - what would you use?

Angle / v-groove is common for rolling gates too.
Bob La Londe

----------------------------
This appears able to calculate the moment of inertia of rotated angle stock, 
to figure the sag between sleepers.
https://clearcalcs.com/freetools/free-moment-of-inertia-calculator/us