Cunningham

A downhaul used to tension the luff near the tack.

How to sign

Use Dominant R-hand: rope classifier. The base or passive hand is Non-dominant flat-B/1-hand: tack and luff locus. Set tack and luff. Start the rope at the tack. Trace a short vertical line downward and make one small firm pull. Hold the short downhaul taut below the tack. Place the sail tack and luff. From the tack, trace a short R-hand line vertically downward and make a small firm pull.

Cunningham in American Sign Language