Storm jib will usually be in the neighborthood of 50% luff length & 60%
LP. Cloth weight will be 10-20%+ heavier than mainsail

Short luff is to reduce heeling.

A variation is the 'blade' that uses a larger luff dimension and even
shorter LP.... for upwind ability. A dentist is usually supplied to
replace your dental fillings every few minutes.


In article , Stephen Trapani
wrote:

Okay, let me try this again. Sometimes the hardest thing about getting
the right answer is knowing enough to ask the right question! Thanks to
those who answered previously. I now know a little about jib
nomenclature. But there was nothing about storm jibs I could find. Is it
just an any old tough little sail? Would a foot 90% to the mast qualify
as a storm jib? What is the general theory for a good storm jib?
Anything smaller than 100% made out of tough material?

Stephen