Posts: 168

Threads: 10

Joined: Jul 2007

Bob....

Do you mean the HP-41 and not the HP-45? I remember that the Hydraulics Solution Book for the HP-41 had something like that. My copy is boxed away, but there should be a copy on the archive disks available from this site.

Also, which equation are you interested in: Hazen-Williams, Mannings, Darcy, etc? I actually wrote my own series of programs using the interchangable solution model used for Time Value of Money. Unfortunately, none are in publishable format, and all are also boxed away. However, depending on what you are looking for i could dig out what I have and send it to you.

Fred

Posts: 3

Threads: 1

Joined: Sep 2008

Yes, you are correct. It was the HP 41, not the HP 45. Please do email or fax a copy of the PSR (Pipe Sliderule) program when time permits. Fax is 858-571-3241. email bobh@nasland.com.

Your assistance is greatly appreciated.

Bob Haynes

San Diego