HLPlanner

HLPlanner is completely FREE mixed gas decompression software utilising the VPM-B algorithm. HLPlanner’s “engine” is loosely based on Erik Baker’s Fortran 77 code, available in the public domain.

The program has been entirely rewritten in C# and optimised, the core of the algorithm however remains identical and therefore produces (or at least that’s what we observed so far) closely matching results.
Main program features:
- Easy to use and highly functional user interface
- Support for full range of gases and profiles
- Full support for both imperial and metric units
- Automatic selection of gas mixes based on depth
- Calculation of gas mix usage in bar/psi and ltr/cuft depending on cylinder size
- Customizable level of safety
- Professional quality printouts
- Easy range planning with O2 bailouts for “loss of deco gas” scenarios
- Full support for repetitive diving with no limit on the number of dives per mission
- and more...