Definition of backwind in US English:



[with object]Sailing
  • (of a sail or vessel) deflect a flow of air into the back of (another sail or vessel).

    • ‘One thing I noticed is that to backwind the main, you have to be back on the tramp.’
    • ‘If the jib is up and overtrimmed, it can easily backwind the main and throw the boat off balance.’
    • ‘Your mainsail changes color if you are being blanketed or backwinded by a competitor.’
    • ‘On the other hand, if the luff below the spreaders backwinds first then the leech has to be eased.’
    • ‘On the other extreme, don't ease the traveler to leeward so much that the genoa backwinds the entire main.’


  • A flow of air deflected into the back of a sail.

    • ‘I wanted to show how the luff of our NS Main likes to just see some backwind or bubble in the luff.’
    • ‘Downdrafts, updrafts, backwinds, and eddies are subtle, less easily observed factors that affect the scent trail.’
    • ‘You will no doubt have backwind in the main and this is necessary to keep the boat balanced.’
    • ‘As long as you stay clear of his backwind, you've got him in your control.’
    • ‘If there is a boat dead ahead, he will be slowed down by its backwind, and the boat to weather will probably sail right past.’