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If you are 18 to 36 months out from a yacht purchase decision in the $10M to $50M range, the most useful free research material in the industry is the charter brochure. Charter brochures contain roughly 80 percent of the buyer-grade data on a yacht: full specs, refit history, engine hours in many cases, naval architect, interior designer, deck plans, general arrangement, tender complement, and a clean operational record visible through booked weeks. The sales brochure for the same yacht, when one exists, often contains less.
This page works through which fields in a charter brochure tell you what you actually need to know as a future buyer, which fields are marketing decoration, and what the gap between the two means.
Why charter brochures are better buyer research than sales brochures
Charter brochures are rebuilt every year. The central agent updates the spec, the photos, the calendar, and the rate card before each season. A sales brochure for the same yacht, when the owner finally decides to sell, is built once at listing and stays static. The result is that a 2026 charter brochure on a 2018 build is current and accurate. A 2026 sales brochure on the same yacht is six months old and was rushed through legal.
The other reason. Charter is an operational product. The brochure has to tell a charter client what the yacht is actually like to live on. The sales brochure has to convince a buyer to write a $30M check, which means it skews to atmosphere over operations. The charter brochure has the cabin layout, the deck flow, the toy garage contents, and the at-anchor stabilizer spec. The sales brochure has a sunset photo.
The six fields to read first
1. The spec sheet, line by line
LOA, beam, draft, GT, year built, year of last refit, builder, naval architect, exterior designer, interior designer. These are the structural facts about the yacht. Two yachts of the same LOA from the same year by the same builder can look identical on the photo page and behave nothing alike at sea. The spec sheet is where the difference shows.
LOA is the obvious one. Beam matters more than people think for living quality. A 50m yacht at 9.5m beam is a different boat from a 50m yacht at 11m beam, and the wider one has roughly 40 percent more usable interior volume on the main deck. Draft determines which anchorages and shallow Bahamas, Exumas, and Croatia routes are open. A 4.2m draft locks you out of half the Exumas chain.
GT (gross tonnage) is the single most useful number on the spec sheet for a buyer. GT measures internal volume, not weight, and it is the field that drives crew requirements, port fees, and most regulatory thresholds. A 500 GT yacht and a 750 GT yacht of the same LOA are different operating businesses.
2. The GT-to-LOA ratio
Divide GT by LOA. A 50m yacht at 750 GT yields a ratio of 15. A 50m yacht at 500 GT yields a ratio of 10. The difference shows up in cabin sizes, ceiling heights, beach club volume, and crew quarters comfort. As a buyer, you want a high ratio for a given LOA, with the trade-off that high-ratio yachts use more fuel and pay higher port fees per mile.
The benchmarks we use as a rough guide. Sub-12 ratio: tight on internal volume, often a sailing yacht or a sportier motor yacht. 12 to 16: standard motor-yacht territory. 16 to 22: voluminous explorer or beam-forward modern motor yachts. 22 plus: large explorer or specialty hulls.
3. The engine and stabilizer lines
Engine make, model, total hours, and stabilizer specification. These three lines drive a disproportionate share of running cost and resale value.
Engine hours are the closest thing to a yacht odometer. Below 8,000 hours on a 10-year-old yacht reads light, suggesting an under-used asset that may have been a private rather than charter program. 12,000 to 18,000 hours on a 10-year-old charter yacht is normal and indicates the engine is in its prime if maintained. Above 25,000 hours, you are inside the window where major work (turbo, injectors, full overhaul) is on the table.
Stabilizers come in two specifications: at-rest and underway. Underway-only stabilizers are 1990s and early 2000s technology. At-rest stabilizers are the 2010s and beyond standard, and they are the difference between sleeping at anchor in a 1.5m swell or not. A yacht without at-rest stabilizers is a refit candidate, with the upgrade running $400K to $1.2M depending on size and engineering.
4. The refit history
A "2022 refit" is meaningful only if you know who did the work. The same line in two charter brochures can mean a $6M Lurssen refit on the engineering and interiors, or a $400K Croatia paint-and-soft-furnishings refresh.
The fields to look for. Yard name. Scope (engineering, paint, interiors, propulsion). Duration in months. Below-decks scope (which is where the real money goes). Above-decks scope (mostly cosmetic). A 12-month refit at Pendennis, Lurssen, Feadship, or Amico is structural. A 6-week refit at any yard is cosmetic.
The refit history is also a tell on the owner. An owner who has refit twice in five years has either bought a problem yacht or is grooming the yacht for sale. Either is useful information. An owner who has not refit in 12 years and the yacht is in charter is running it down. Walk away or expect a heavy first-year invoice.
5. The central agent and brochure date
The central agent of record for the yacht's charter program is on the brochure. Cross-reference against the broker pitching you a charter. If the pitching broker is not the central agent, the route is a retail-broker layer above the central agent and the rate has retail margin in it (which is fine, that is how the market works, but you should know).
The brochure date matters as a freshness signal. Brochures are rebuilt for each season. A 2026 brochure dated November 2025 is current. A "2026" brochure that on inspection is a renamed 2024 PDF means the central agent has lost interest, and the owner often has too. Yachts where the central agent has lost interest are sometimes priced softly because the owner is leaning toward sale.
6. The booked weeks indicator
YachtCharterFleet, CharterWorld, and BoatBookings publish booked-up calendars for many charter yachts. A yacht booked 12 to 16 weeks in 2025 is a operational program. A yacht booked 2 to 4 weeks is a yacht the central agent has shelved.
For a buyer, charter utilization is a strong indicator of operating condition. A yacht in busy charter is being inspected, maintained, and repaired on a continuous schedule paid for by charter clients. A yacht with no charter is sitting at the dock, and the maintenance cycle is whatever the owner pays for. The high-utilization yacht typically presents better at survey, even at the same age and refit history.
The four fields to ignore (or weight low)
The cinema, the spa room, the sky lounge naming, and the "Owner's Suite" copy. These are charter-marketing fields. They tell you what the central agent is using to close a $200K weekly client. As a buyer, the cinema is a screen and a couple of speakers, the spa is a 4 sqm room with a tile bench, the sky lounge is a sofa under a sun pad. None of these change your purchase decision.
The "lifestyle" copy. Phrases like "perfect for entertaining" and "an real experience" tell you the brochure has a copywriter, not what the yacht does well.
The interior designer name when used as a flag. A name-brand designer (Terence Disdale, Andrew Winch, Rémi Tessier, Reymond Langton, March & White) tells you the original cost was high and the resale should hold better. It does not tell you whether the design has aged well. Check the photos and the date.
The toy list. Charter brochures inflate the toy list with kit that is rented for the week, not owned with the yacht. The owned toys are in the inventory list at the back of the brochure, not the marketing pages.
The gap between charter brochure and sales brochure
Three structural differences worth knowing.
Asking price. The sales brochure has one. The charter brochure does not. To convert from charter to sale-price intuition, the rough industry rule is that a Med peak weekly rate of $X corresponds to a sale price of roughly 100 to 150 times X. A $200K weekly yacht typically sells in the $20M to $30M range. The rule fails above $1M per week (where weekly rates plateau but sale prices keep climbing) and below $80K per week (where weekly rates are noisy and sales prices are dictated by other factors).
Survey clauses. The sales brochure references the survey process. The charter brochure does not. Both are equally useful as research, but only the sale process triggers the actual physical inspection.
Captain access. The charter brochure has the captain's name on the page in many cases. The captain is the single best source on what the yacht is actually like, and most captains will take a 20-minute call from a serious buyer who is making a real inquiry. The introduction works best through the central agent. A captain who has been on the yacht for 3+ years and is still positive is a strong signal. A captain who is leaving in three months is a different signal.
How to use this in practice
If you are 18 to 36 months out from a buy at $10M to $50M, build a brochure folder. Pull 30 to 50 charter brochures across the size and type range you are considering. Read them against this framework. The pattern recognition you build is the difference between walking onto your first sale viewing and being able to ask a sharp question, versus being shown around like a charter client who happens to have $30M.
If you are inside 12 months, narrow to 5 to 10 specific yachts and pull both their charter brochure and (where it exists) their sales brochure. Read them side by side. Note the discrepancies. Bring those discrepancies to your buyer's broker as the questions that should drive the survey.
For the yachts that look real to you, request the charter calendar from the central agent and book a 5 to 7 day shoulder-season charter on the closest available. The charter is the cheapest serious due diligence in the industry. Read Charter before buying for the playbook.
Where charter brochures fail as research
Three areas where the charter brochure is silent or misleading.
Owner finances. The charter brochure does not tell you whether the owner is over-leveraged, recently divorced, or behind on a build. These are the situations that price below market. Your buyer's broker has to pull this from market intelligence, not the brochure.
Survey-grade defects. The brochure does not tell you that the bow thruster has been rebuilt twice in three years, or that the watermaker is on its last season. Survey is the only source.
Ownership complications. Flag, registry, charter program tax structure, ownership entity, and any litigation. The brochure shows none of this. Counsel handles it.
What we do with charter brochures internally
Every yacht we cover in our best-of charter guides starts as a charter brochure pulled to a folder, read against the six-field framework above, and ranked. Yachts that fail the spec-sheet read get cut before we ever board them. The brochure is the first sieve. It does the heavy lifting.
FAQ
Q: Do central agents mind giving brochures to people who are clearly researching, not chartering? A: Most do not. The brochure is marketing collateral. A direct request through the central agent's published email gets you the PDF within 48 hours. Lying about your intent is unnecessary and unhelpful.
Q: Can I infer engine hours if the brochure does not state them? A: Roughly. A yacht in a 10-year continuous charter program typically runs 1,200 to 1,800 engine hours per year. Multiply by years and add a 20 percent uncertainty band. The exact number is in the survey, not the brochure.
Q: What if the brochure has been "refreshed" rather than rebuilt? A: Look at the spec sheet for inconsistencies. A refresh that did not update the GT line, the engine line, or the refit line is a dated brochure with a new cover. Treat it as 2 years older than the cover date.
Q: Are sailing yacht brochures different? A: Yes. The sailing-yacht brochure adds rig type, mast height, sail area, and recent rig replacement date. The rig is the single most expensive component on a sailing yacht and has a 12 to 18-year service life. A sailing yacht with an unreplaced rig past year 12 is a refit candidate.
Q: How recent does a brochure need to be to trust the specs? A: Within 18 months. Beyond that, treat the spec sheet as a starting point and verify any field that matters to your decision against the central agent.