How can I tell which job I have on my potter 19

On Apr 3, 2022, at 8:45 PM, Amgine <w@...> wrote:

I am going to take a wild guess you meant jib.

There three 'standard' sizes of jib for the WWP19: 100% ('working'), 110% ('lapper'), and 140% ('genoa').

The percentage refers to the measurement of the base of the foretriangle - the triangle made by the mast, the forestay, and a straight line drawn from the foot of the mast to the forestay (usually forming a right triangle.) The length of that last line is 100%. The 'lapper' sail is a little longer than this, so the clew of the sail will be somewhere a little aft of the mast, 10% longer than the working sail. The 'genoa' is the largest of the jib sails, sweeping well aft of the mast, 40% longer than the working sail.

It is almost certain your jib is one of these three. But there are also two additional classes of fore sails for the WWP 19, although they are less common.

The 'Spinaker' is a symmetrical triangular sail, used sailing downwind. It is a fussy sail, and is usually rigged in a custom fashion for the boats which fly it, usually with two crew to handle that one sail. It can be flown from the masthead or the forestay, almost only in light airs except amongst racers.

The asymmetrical jib is the other class of fore sail. Again these are semi-custom installations, so it's hard to make generalizations, but I have only seen them flown from the jib halyard. Although in other respects they are like a somewhat full-bellied genoa, it is set flying, not attached to the stay, with the luff rounding out a bit beyond the stay. Like all the bigger sails, the asym is for lighter winds but unlike most spinakers it may be useful for upwind work though not as close as the standard jibs.

(There are a few other variations of foresails possible, but either so rare as to be better classified as 'stunts' or very modified-rig-specific that I will not go into them. Yes, you hit my pedant button.)

On 03/04/2022 17:18, Martin via groups.io wrote:
How can I tell which job I have on my potter 19

Heh, I just checked the site[1], and apparently sometime after my boat (2000) the working jib became 90%. Or maybe a P.O. had one made. So I may have given some bad info in my answer.

[1] https://www.westwightpotter.com/store/p-19-parts/sails-and-canvas/sails/

On 03/04/2022 17:57, Martin via groups.io wrote:

Thanks for the info Amgine, yes I meant jib

On Apr 3, 2022, at 8:45 PM, Amgine <w@...> wrote:

I am going to take a wild guess you meant jib.

There three 'standard' sizes of jib for the WWP19: 100% ('working'), 110% ('lapper'), and 140% ('genoa').

The percentage refers to the measurement of the base of the foretriangle - the triangle made by the mast, the forestay, and a straight line drawn from the foot of the mast to the forestay (usually forming a right triangle.) The length of that last line is 100%. The 'lapper' sail is a little longer than this, so the clew of the sail will be somewhere a little aft of the mast, 10% longer than the working sail. The 'genoa' is the largest of the jib sails, sweeping well aft of the mast, 40% longer than the working sail.

It is almost certain your jib is one of these three. But there are also two additional classes of fore sails for the WWP 19, although they are less common.

The 'Spinaker' is a symmetrical triangular sail, used sailing downwind. It is a fussy sail, and is usually rigged in a custom fashion for the boats which fly it, usually with two crew to handle that one sail. It can be flown from the masthead or the forestay, almost only in light airs except amongst racers.

The asymmetrical jib is the other class of fore sail. Again these are semi-custom installations, so it's hard to make generalizations, but I have only seen them flown from the jib halyard. Although in other respects they are like a somewhat full-bellied genoa, it is set flying, not attached to the stay, with the luff rounding out a bit beyond the stay. Like all the bigger sails, the asym is for lighter winds but unlike most spinakers it may be useful for upwind work though not as close as the standard jibs.

(There are a few other variations of foresails possible, but either so rare as to be better classified as 'stunts' or very modified-rig-specific that I will not go into them. Yes, you hit my pedant button.)

On 03/04/2022 17:18, Martin via groups.io wrote:
How can I tell which job I have on my potter 19