This is re-introduced, here as a downloadable demo model. If you are interested then you can puchase the registration key for $49.00 at: wildfireengineer.online A FLASH DRIVE with the new version, with user manual is mailed to you. The above link to the store has more images and information.
The calculator is a compiled spreadsheet (6 tabs) made executable and is hardware locked to only one PC.
This also allows you to calculate engines necessary for any relay pumping operations as well as for determining engine spacing etc.
A separate tab for determining multiple leg segments with varying elevation changes and distances is also added in since most often hoselays are almost never at a constant elevation, equal distances etc. The multi leg tab will calculate everything for you.
The Demo version is valid for 3 days upon running for the first time.