pickle fork?

[Baldy]

When you pickle fork a full tunnel, what exactly does that mean? sorry if its a dumb question

[Bob T]

On a' true'or full tunnel the deck runs all the way to the front of the sponsons.You rarely see this any more. The air under the front of this type of boat provides a great deal of bow lift. Ending the deck or 'air foil' sooner as on a' pickle fork',lessens the amount of bow lift and ,as a result,the chances of 'blow over'.