Four sheets, two twines
Convoy: three sheets to fold, one twine to trim. Covered relay: two twines for moorings, two sheets for boats. Optional stock canopy: one sheet. Three invitation bundles remain sealed.
Try this: Allocate finite material before choosing a launch.
The two-turn crosswind mark
At two work turns remaining, the crosswind reaches the open basin. Launch a trimmed convoy before that marker. The covered relay remains usable. Draw the latest safe order of folding and trimming.
Try this: Plan backward from the known gust threshold.