3 answers

• 
  Aled J Taylor 11 months ago

  What is the length?

• 
  Aled J Taylor 11 months ago

  The pitch is the length divided by the number of turns.

• 
  Cliff Behrend 11 months ago

  Aled is correct refering to a Helix

  A Helix has length
  A Spiral has no length

  Pitch for a spiral is "Final diameter" - "Start diameter" divided by "Number of turns"
  (FD-SD)/NOT