International Moth Mainsail
Key changes in the flying shape include increasing depth and sleeve rotation in the lower half whilst doing the opposite in the upper half to allow the sail to wash out cleanly in the head. This set up allows more vang use off wind without stalling the upper sail.
The sail now feels more powerful downwind and is easier to depower upwind.
The upper third can be now completely washed out with aggressive cunningham use. This lowers the C of E and gives more righting moment in effect.
Outline shape has been modified to maximise luff and leech length - also following our competitors by lowering the effective luff under the lower band with aggressive “foot round". This increase in luff - and leech by extending the leech upwards, leads to a narrower sail with longer leading and trailing edges