Inches would be used to measure a cat. If you want to measure it in feet or yards you would convert the inches into feet or yards, but leaving the measurement in inches is more appropriate.
You will not measure air in feet or inches because you cant see it.
I would use feet and inches to measure an aircraft
35.7 what? Inches would be 2 feet 11.7 inches 12 inches per foot.
Feet or inches
you would think it is feet but, it is inches
Feet and inches
In the U.S.: Inches, or Feet & Inches.
Metres and Centimetres, or feet and inches.
inches or feet.