This is from the Bacon Sails list
I think the standard jib is a 110%, so it would be 10.406' x 26.33 to 28.33Luff range from 26.33 to 28.33 - Foot range from 9.46 to 16.082100% J=9.46 110% J=10.406 120% J=11.352 130% J=12.298 140% J=13.244 150% J=14.19 160% J=15.136 170% J=16.082 Somebody may have a better answer, but this is a start.