Key Facts
- Length
- 27.68 m
- Beam
- 7.50 m
- Builder
- Stephens Marine
- Year
- 1944
- Type
- Motor
- Gross tonnage
- 185.00 GT
- Country
- United States
- Charter availability
- Unknown
Previous / Project Names
No previous or project names recorded.
Superyacht Guide Award
Superyacht Guide Yacht Star
★☆☆☆☆
1 Star - Listed with recognised merit
Listed with recognised merit as a structured public yacht database record. Rating is editorial and not a certification.
Structured public data pending image review
Last reviewed: May 14, 2026
Superyacht Guide Awards are editorial ratings based on available information and review criteria.
Adak is a 27.68 metre motor built by Stephens Marine and launched in 1944.
The yacht's recorded specifications include a beam of 7.5 metres, volume of 185 GT.
Design information lists naval architecture by Us Navy Shipyards; exterior design by Us Navy Shipyards.
Construction details list a Steel hull and Steel superstructure.
This profile has been prepared from structured public yacht data and should be reviewed before publication with imagery and source verification.
Build country: United States. Naval architecture: Us Navy Shipyards. Exterior design: Us Navy Shipyards. Key listed specifications include beam 7.5 m, gross tonnage 185 GT.
This draft profile was created from SuperYacht Times public yacht profile. It is held as an unpublished database record pending image review and editorial verification.
Specifications
| Length | 27.68 m |
|---|---|
| Beam | 7.50 m |
| Gross tonnage | 185.00 |
| Construction | Steel / Steel; Hull: Steel; Superstructure: Steel |
| Range | 0 |
| Fuel capacity | 0 |
| Water capacity | 0 |
| Machinery | 2 x General Motors modelN/A Diesel power |
Design
| Naval architecture | Us Navy Shipyards |
|---|---|
| Exterior design | Us Navy Shipyards |
Ownership intelligence
Accounts & Financial Intelligence
Indicative ownership costs for Adak, separating routine operating expenditure from capital expenditure and major-refit reserves.
Estimated
Low confidence
Annual operating expenditure
| Category | Annual estimate | Status |
|---|---|---|
| Berthing, ports and agency fees | €33,584 | Estimated |
| Communications, IT and security | €8,396 | Estimated |
| Crew salaries and employment costs | €146,928 | Estimated |
| Fuel and lubricants | €50,375 | Estimated |
| Insurance | €20,990 | Estimated |
| Maintenance and routine repairs | €83,959 | Estimated |
| Yacht management and administration | €12,594 | Estimated |
| Provisions and hospitality | €25,188 | Estimated |
| Flag, registration, class and surveys | €8,396 | Estimated |
| Tenders, toys and deck equipment | €16,792 | Estimated |
| Travel, training, medical and uniforms | €12,594 | Estimated |
Capital expenditure and refit history
| Item | Amount | Year | Status |
|---|---|---|---|
| No reported yacht-specific capital transactions have yet been added. | |||
Sources, assumptions and methodology
Indicative SYG estimate. Value basis: Length-and-age model using length. Central annual OPEX uses the established 14% of estimated yacht value fallback, adjusted for yacht age where available. Low and high cases reflect utilisation, condition, crewing, fuel, berthing and maintenance uncertainty. Capital reserve is shown separately from routine OPEX. Figures must be replaced or upgraded when reported accounts, invoices, court records or other yacht-specific evidence is available.
Calculation version: SYG-FI-1.0 · Last reviewed: 25 July 2026
Financial figures may include reported expenditure, source-derived calculations and indicative estimates. Estimated figures are not audited accounts, quotations or financial advice.
Yacht intelligence
Superyacht Passport
A dynamic record assembled from Superyacht Guide yacht data, sourced ownership records, construction milestones, valuations, sale listings and related reporting.
Identity
- Current name
- Adak
- Launch year
- 1944
- Builder
- Stephens Marine
Ownership & provenance
No sourced ownership record is currently published for this yacht.
Market snapshot
Estimated current value
€900,000
Valued at
15 May 2026
Estimated annual
running cost
€126,000
27.68m Stephens Marine Adak, 1944. Editorial estimate for historic/classic American motor yacht. Confidence: low. Value is for Superyacht Guide editorial/database use and is not a certified valuation. VALUE_CLASS: EDITORIAL_ESTIMATE_VALUE. This classification separates direct source-backed values from public estimates and editorial/comparable estimates.
Values and running costs are estimates unless explicitly identified as documented transaction figures.
Yacht Value History
Permanent Superyacht Guide market records showing estimates, asking prices and, where verified in future, documented transaction or financial values.
1
recorded
point
Date
15 May 2026
Valuation date
Record type
Superyacht Guide estimate
Value
€900,000
Evidence
Superyacht Guide valuation
27.68m Stephens Marine Adak, 1944. Editorial estimate for historic/classic American motor yacht. Confidence: low. Value is for Superyacht Guide editorial/database use and is not a certified valuation.
VALUE_CLASS: EDIT…
How to read this history:
Superyacht Guide estimates,
brokerage asking prices and
documented transaction values are
stored as separate record types.
The first baseline record marks the
beginning of permanent Superyacht
Guide value-history tracking; the
absence of an earlier record does
not mean the yacht had no earlier
market value or sale history.
Yacht timeline
Dated milestones and Superyacht Guide records, ordered chronologically.
1944
Launch year
Passport evidence
SuperYacht Times public yacht profile
Supports:
spreadsheet_import
Superyacht Guide distinguishes sourced records, estimates and reported information. Evidence shown here reflects sources attached to this yacht record and may be updated as new verified information becomes available.
Where can Adak go?
1167 public marina records are recorded with a maximum yacht length of at least 27.68 m.
Port Cogolin
Cogolin
·
France
Recorded maximum yacht length:
28.00 m
Length-capable record only.
Current berth availability,
beam and draught suitability
must be confirmed directly.
Marina Orikum
Orikum
·
Albania
Recorded maximum yacht length:
30.00 m
Length-capable record only.
Current berth availability,
beam and draught suitability
must be confirmed directly.
Sidi Fredj Marina Algiers
Algiers
·
Algeria
Recorded maximum yacht length:
30.00 m
Length-capable record only.
Current berth availability,
beam and draught suitability
must be confirmed directly.
Puerto de Olivos Marina
Olivos / Buenos Aires
·
Argentina
Recorded maximum yacht length:
30.00 m
Length-capable record only.
Current berth availability,
beam and draught suitability
must be confirmed directly.
Elizabeth Quay Marina Perth
Perth
·
Australia
Recorded maximum yacht length:
30.00 m
Length-capable record only.
Current berth availability,
beam and draught suitability
must be confirmed directly.
Mercator Marina Ostend
Ostend
·
Belgium
Recorded maximum yacht length:
30.00 m
Length-capable record only.
Current berth availability,
beam and draught suitability
must be confirmed directly.
Similar yachts to Adak
Dynamically matched using recorded dimensions, broad yacht type, estimated value, launch era and builder, with gross tonnage and speed used only where comparable data exists.
Match score
80/100
Rhodi's Island II
Feadship
·
26.60 m
· 1952
Estimated value
€1,100,000
Why it is similar
- 1.1 m difference in length
- Same broad type: motor yacht
- Estimated value within 22%
Match score
78/100
Opus
Baglietto
·
28.00 m
· 1994
Why it is similar
- 0.3 m difference in length
- Same broad type: motor yacht
Match score
77/100
Chambell II
Feadship
·
29.57 m
· 1957
Estimated value
€1,000,000
Why it is similar
- 1.9 m difference in length
- Same broad type: motor yacht
- Estimated value within 11%
Match score
74/100
Anahita
Feadship
·
25.05 m
· 1952
Estimated value
€750,000
Why it is similar
- 2.6 m difference in length
- Same broad type: motor yacht
- Estimated value within 17%
Match score
73/100
Doclea
Oceanco
·
25.00 m
· 1995
Estimated value
€900,000
Why it is similar
- 2.7 m difference in length
- Same broad type: motor yacht
- Estimated value within 0%
Match score
72/100
JET
Admiral Yachts
·
27.00 m
· 2004
Estimated value
€1,200,000
Why it is similar
- 0.7 m difference in length
- Same broad type: motor yacht
Similarity is calculated from recorded Superyacht Guide data. A high match score does not imply identical design, condition, specification or market availability.
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