Study
Tide-window briefing
A tide-window briefing sets the actual gates that govern a named harbour against a season you choose, in language a coxswain and a councillor can both follow.
Who it is for
Small harbours, working yacht-club quays, and conservancies where draft, cill, or lock still decide arrivals.
Small harbours and yacht-club working quays where draft and gates still decide the day.
What you receive
A seasonal chart of usable windows, annotated with the delays we can evidence from your own call log.
Scope
One harbour, one season or a year of springs and neaps. Storm surge modelling is outside this briefing.
Included
- Reading of published tide tables against your cill or lock rules
- A chart of windows actually used in the months you name
- A two-hour conversation at the harbour or by telephone
Not included
- Hydrographic survey
- Advice on dredging volumes
- Pilotage directions
Who carries out the work
Content Craftline, with travel on the south coast and wider United Kingdom by arrangement.
How the work proceeds
- Name the harbour and season. Winter and summer windows are different commissions if you need both drawn in detail.
- Gather tables and rules. Cill height, lock times, and any unpublished local custom must be written down.
- Brief. We walk the chart with whoever keeps the movements book.
Time
One to two weeks.
Where the work happens
Blackstone drafting plus a visit when the harbour is within a reasonable day from BN5.
What we ask you to prepare
A copy of standing orders for the lock or cill, if they exist.
Limits we will not stretch
We follow the harbour’s published numbers; we do not substitute a private rule of thumb unless you put it in writing.
Fee basis
From £1,200. A second season is quoted, not halved.
Rates are informational. There is no payment on this site. Instruct us by writing; we send a letter of engagement before any on-quay day is booked.
Next step
Tell us the harbour, the season, and whether lock or cill is the gate.