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The navigation menu on the left (or the Nav Menu button on small mobile devices) shows the various versions of my on-line calculators which are currently available.

Please note that there is a FAQ page with answers to Frequently Asked Questions about the calculators.

Also note that near the bottom of the nav menu, there are links to technical articles which describe (in gory detail) all of the equations used for the density altitude and dyno correction calculators.



Richard Shelquist
Colorado, USA

updated: 27-Feb-2018

----- Shelquist Engineering -- Richard Shelquist -- Colorado, USA -----