Legal
Privacy policy
Last updated · 9 October 2026
Your privacy matters to us. This policy explains what personal information Extreme H2O collects through this website, why we collect it, who we share it with, how long we keep it and the rights you have.
Who we are
Extreme H2O Catamarans 2.0 LLC, a Florida limited liability company (“Extreme H2O”, “we”, “us”), is responsible for the personal information described in this policy. You can contact us about privacy at any time through .
Information we collect
We only collect the information you choose to give us and the minimum technical information needed to run the website:
- Enquiries. When you use an enquiry form we receive your name, email address, the area you are interested in (racing, experiences and charter, partnership or general) and any message you write.
- Correspondence. If you email us, or we follow up on your enquiry, we keep the correspondence and any details you share, such as your sailing experience or preferred dates.
- Technical information. Like most websites, our hosting provider automatically records basic information when you visit, such as your IP address, browser type and the pages requested. This is used only to deliver and secure the website.
We do not ask for, and ask you not to send, sensitive information such as health details or financial information through the website.
How we use your information
- To reply to your enquiry and to discuss the racing program, experience, charter or partnership you are interested in.
- To arrange and manage any program or experience you go on to book with us.
- To keep you informed about PB72 and opportunities to come aboard, where you have asked us to or where this relates to your enquiry. You can ask us to stop at any time.
- To keep the website secure, working properly and improving.
- To meet our legal obligations.
Legal basis
Where data protection laws such as the GDPR apply, we rely on the following legal bases: your consent when you send us an enquiry; the steps needed to enter into or perform a contract with you; our legitimate interest in responding to enquiries, developing our programs and keeping the website secure; and compliance with legal obligations.
Sharing your information
We do not sell or rent your personal information. We share it only when necessary, and only with:
- The service providers who host this website and deliver our enquiry form and email, acting on our instructions.
- Our professional crew, program managers and, where relevant to what you have asked about, event partners, so that we can answer your enquiry and arrange your program or experience.
- Authorities, where we are required to by law.
Anyone who processes information on our behalf is required to keep it confidential and secure.
International transfers
Extreme H2O operates internationally and our service providers may store information in the United States and other countries. Where information is transferred from the European Economic Area, the United Kingdom or Switzerland, we use appropriate safeguards such as standard contractual clauses.
How long we keep it
We keep personal information only for as long as it is needed for the purposes described above. Enquiries that do not lead to a booking are deleted within two years of our last contact with you. Where you book a program or experience, we keep records for as long as required for that agreement and for legal and accounting purposes.
Security
We take appropriate technical and organisational measures to protect your information against loss, misuse and unauthorised access. This website is served over an encrypted connection. If you believe your information has been misused, please contact us immediately.
Cookies
This website does not use advertising or tracking cookies. Fonts are delivered by Google Fonts, which may record your IP address as part of delivering them. Read more in our Cookie policy.
Your rights
Depending on where you live, you may have the right to:
- Ask for a copy of the personal information we hold about you.
- Ask us to correct information that is inaccurate or incomplete.
- Ask us to delete your information.
- Object to, or ask us to restrict, how we use your information.
- Withdraw your consent at any time, without affecting anything we did before.
- Receive your information in a portable format.
To use any of these rights, contact us through . We will respond within one month. California residents have the right to know what personal information we collect and to ask us to delete it; we do not sell or share personal information for cross-context advertising. If you are in the EEA or UK, you also have the right to complain to your local data protection authority.
Children
This website is not intended for children under 16, and we do not knowingly collect their personal information.
Changes to this policy
We may update this policy from time to time, for example when we connect new services to the website. The latest version is always published on this page with its “last updated” date.
Contact
For any question about this policy or your personal information, contact us through .
Extreme H2O · Foiling ocean catamaran · Technical specification
PB72 specifications
Morrelli & Melvin · GA PB72_001 Rev A · Persico Marine build spec
- Length overall
- 21.95 m
- 72.0 ft
- Beam
- 9.50 m
- 31.2 ft
- Racing displacement
- ≈ 21.5 t
- As built · VPP targets at 20.3 t
- Mast
- 32.33 m
- Air draft 37 m
- Upwind sail area
- 420 m²
- Main 224 + J1 196
- Fastest upwind
- J3 + main
- Full main 224 + J3 115 m²
- Fastest downwind
- MHO + main
- Full main 224 + MHO 358 m²
- Predicted top speed
- 40+ kn
- VPP
Principal dimensions
- Length overall
- 21.95 m72.0 ft
- Length incl. longeron
- 24.10 m79.1 ft
- Length waterline
- 21.45 m70.4 ft
- Beam overall
- 9.50 m31.2 ft
- Hull centreline spacing
- 7.52 m24.7 ft
- Freeboard
- 2.07 m6.8 ft
- Draft, boards down
- 5.31 m17.4 ft
- Draft, foils raised
- 0.65 m2.1 ft
- Air draft
- 37.00 m121.4 ft
Displacement & stability
- Light displacement
- ≈ 21,000 kgAs built · design 20,500 kg
- Racing displacement
- ≈ 21,500 kgAs built · as sailed in sea trials
- VPP target displacement
- 20,280 kgDesign racing weight used for the polar targets
- Design displacement (mLDC)
- 23,047 kgMaximum load condition
- Max total load (ISO 8666)
- 22,518 kg
- Steady-state sailing RM
- 830 kNmAt full-payload displacement
- Max dynamic RM
- 1,340 kNmRace mode, RMFoil deployed
Rig
- Mast tube length
- 32.33 m106.1 ft
- Mast design rake
- 4°
- P
- 31.285 mReefs: 26.604 · 21.970 · 14.190 m
- E
- 9.678 m
- I (1 · 2 · 3)
- 33.470 · 32.775 · 30.900 m
- I headstay (5 · 6)
- 28.050 · 25.720 m
- J (1 · 2 · 3)
- 12.180 · 11.730 · 10.980 m
- J headstay (5 · 6)
- 8.744 · 8.072 m
- BAD · HBI
- 1.906 · 2.019 m
Sail areas
- Mainsail, full
- 224 m²Reefs: 183 · 144 · 76.8 m²
- J0
- 219 m²
- J1
- 196 m²
- J3
- 115 m²
- J4 / staysail
- 87.3 m²
- FRO
- 304 m²
- MHO
- 358 m²
- A1
- 365 m²
- Fastest upwind setup
- J3 + full mainJ1 in marginal upwind conditions, 13–14 kn: partial foiling
- Fastest downwind setup
- MHO + full main
Foils & flight control
- Righting-moment foil
- ≈ 16 × 3 ftCurved carbon foil in a hydraulically raked case
- Daggerboards
- Centreline, per hullIndependent of the lifting foil
- Rudders
- Raking, T-foilConical titanium bearings · ≈ 6 ft T-foils
- Flight control
- Designed for fly-by-wireFoil lift and rudder-elevator control; programmed after sea trials
Construction & class
- Hull
- Carbon fibreFoam & Nomex sandwich
- Superstructure
- Carbon fibreFoam & Nomex sandwich
- Classification
- ISO 12215-7 Cat. ASER1 multihull · highest category, sport boat
- Propulsion
- 2 × 35 kW electricTorqeedo
Rig & deck hardware
- Mast
- Carbon rotating wing mastSupplied by SSNZ · single spreader, double diamond, running backstays
- Primary winches
- 4 × Harken 1125.3
- Secondary winches
- 2 × Harken 65.3 ST
- Windlass
- Lewmar V6 hydraulic
Propulsion & power
- Main engines
- 2 × Torqeedo electric25 kW continuous · 35 kW max each
- Drive
- Shaft driveStrut and P-bracket · Gori GP20 folding propellers
- Motoring speed
- 9.2 kn max7.5 kn cruise (estimated)
- Generators
- 2 × 20 kW Fischer Panda
- Propulsion battery
- 40 kWh lithium-ionBMW i3 cells
- Solar
- 2 kWPanels on the coachroof
- Electrical
- 120 V and 240 V AC400 V DC charging & hydraulic bus · 24 V domestic · Empirbus digital switching
Tankage
- Fuel
- 2 × 550 L
- Fresh water
- 2 × 450 LPlus 70 L drinking water
- Watermaker
- Schenker Modular Zen 50
- Black water
- 2 × 220 L
Comfort & systems
- Air conditioning
- 64,000 BTU/hTermodinamica
- Galley
- Gaggenau hobsPizza oven · Miele microwave · Miele coffee machine
- Refrigeration
- 3 × 172 L fridgesPlus Frigonautica freezer
- Navigation
- B&G / Simrad
- Communications
- VHF · 5G · SatcomSatellite broadband
- Steering
- Outside helms + inside helmFly-by-wire steering at the inside helm station
Performance
- Predicted top speed
- 40+ knPolar peak 40.7 kn
- Foiling onset
- 11–13 kn TWSDepending on sail set
- Upwind, 13 kn of wind
- ≈ 24 kn
- Downwind, 14 kn of wind
- ≈ 31 kn
- Crew
- 4 per watchTo sail her fast; two watches for round-the-clock ocean racing
Velocity prediction program, partially validated in sea trials.
Design & build
- Naval architecture
- Morrelli & MelvinNewport Beach, California
- Lead designer
- Ferdinand van WestThen at Morrelli & Melvin; now Van West Naval Architecture
- Interior architecture
- Design Unlimited
- Builder
- Persico MarineItaly
- Flight control
- Team New Zealand engineers
- General arrangement
- PB72_001 · Rev A6 August 2022
Figures from the Morrelli & Melvin general arrangement (PB72_001, Rev A, August 2022) and the Persico Marine build specification. Displacements are approximate as-built figures from Ferdinand van West (2026); righting moments are design estimates; performance figures are VPP predictions, calculated at the 20,280 kg design racing displacement.
Every cell is a predicted boat speed from the velocity prediction program. The circled cells are the targets PB72 has already hit in her first sea trials, with the foils still trimmed by hand. Each one came in on target.
| Wind angleTrue wind (kn) | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 18 | 20 | 22 | 24 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 45° | 7.6 | 8.4 | 9.1 | 9.8 | 10.4 | 11.3 | 12.6 | 13.6 | 14.4 | 15.1 | 16.0 | 17.4 | 20.5 | 23.4 | 24.0 | 23.7 |
| 50° | 8.0 | 8.9 | 9.7 | 10.5 | 11.2 | 12.8 | 14.3 | 15.1 | 16.3 | 17.6 | 19.5 | 21.6 | 27.1 | 27.5 | 27.0 | 26.5 |
| 55° | 8.4 | 9.3 | 10.2 | 11.2 | 12.2 | 14.2 | 15.7 | 17.0 | 18.8 | 20.8 | 23.4 | 27.6 | 30.1 | 30.2 | 29.5 | 28.9 |
| 60° | 8.8 | 9.7 | 10.7 | 11.8 | 13.2 | 15.3 | 17.1 | 19.3 | 21.5 | 26.1 | 28.6 | 30.2 | 32.4 | 32.3 | 31.6 | 30.9 |
| 65° | 9.1 | 10.1 | 11.2 | 12.3 | 14.3 | 16.4 | 19.1 | 21.5 | 26.1 | 29.0 | 30.8 | 32.2 | 34.3 | 34.2 | 33.4 | 32.4 |
| 70° | 9.3 | 10.4 | 11.5 | 12.7 | 14.9 | 17.9 | 20.9 | 24.1 | 28.6 | 30.8 | 32.4 | 33.8 | 35.8 | 35.7 | 34.8 | 32.3 |
| 75° | 9.5 | 10.6 | 11.8 | 13.1 | 15.4 | 19.4 | 22.6 | 27.3 | 30.2 | 32.2 | 33.7 | 35.1 | 37.1 | 37.1 | 36.2 | 34.0 |
| 80° | 9.7 | 11.0 | 12.3 | 13.9 | 15.8 | 20.6 | 25.1 | 28.7 | 31.4 | 33.2 | 34.7 | 36.1 | 38.1 | 38.2 | 37.3 | 36.2 |
| 85° | 9.8 | 11.2 | 12.6 | 14.2 | 16.2 | 21.3 | 26.9 | 29.8 | 32.2 | 34.0 | 35.5 | 36.9 | 39.0 | 39.1 | 38.3 | 37.5 |
| 90° | 9.9 | 11.3 | 12.7 | 14.4 | 16.4 | 21.5 | 27.7 | 31.5 | 33.5 | 35.1 | 36.3 | 37.5 | 39.6 | 39.8 | 39.1 | 38.7 |
| 95° | 9.9 | 11.3 | 12.8 | 14.4 | 16.5 | 21.0 | 28.7 | 31.7 | 33.9 | 35.5 | 36.8 | 37.9 | 40.0 | 40.3 | 39.8 | 39.5 |
| 100° | 9.9 | 11.3 | 12.7 | 14.2 | 16.3 | 22.3 | 28.8 | 31.7 | 34.2 | 35.8 | 37.0 | 38.1 | 40.3 | 40.6 | 40.3 | 40.0 |
| 105° | 9.8 | 11.1 | 12.5 | 14.0 | 15.7 | 21.0 | 28.3 | 31.4 | 34.0 | 35.8 | 37.1 | 38.2 | 40.3 | 40.7 | 40.5 | 40.3 |
| 110° | 9.7 | 10.9 | 12.2 | 13.6 | 15.1 | 17.7 | 26.8 | 31.0 | 33.3 | 35.5 | 37.0 | 38.2 | 40.2 | 40.7 | 40.6 | 40.4 |
| 115° | 9.5 | 10.6 | 11.8 | 13.1 | 14.5 | 16.5 | 19.9 | 30.0 | 32.6 | 34.8 | 36.6 | 37.9 | 40.0 | 40.3 | 40.4 | 40.1 |
| 120° | 9.2 | 10.3 | 11.4 | 12.5 | 13.7 | 14.9 | 17.4 | 25.8 | 31.8 | 34.0 | 35.6 | 37.4 | 39.6 | 40.0 | 40.0 | 39.6 |
| 125° | 8.9 | 9.9 | 10.8 | 11.6 | 12.4 | 13.5 | 14.7 | 16.3 | 29.7 | 32.9 | 34.9 | 36.4 | 39.0 | 39.6 | 39.6 | 39.1 |
| 130° | 8.5 | 9.4 | 10.0 | 10.8 | 11.9 | 13.1 | 14.3 | 15.5 | 17.1 | 18.0 | 33.4 | 35.4 | 38.1 | 38.9 | 39.1 | 38.6 |
| 135° | 8.2 | 8.7 | 9.5 | 10.5 | 11.5 | 12.6 | 13.7 | 14.8 | 16.2 | 17.3 | 18.4 | 20.0 | 37.0 | 38.0 | 38.2 | 37.7 |
| 140° | 7.6 | 8.2 | 9.1 | 9.9 | 10.9 | 11.9 | 12.9 | 14.0 | 15.2 | 16.4 | 17.7 | 19.1 | 22.1 | 35.4 | 30.7 | 35.0 |
Predicted speeds from the velocity prediction program. Sea-trial targets achieved with manual foil trim; the automatic flight-control system comes online after calibration.
- VPP targets calculated at
- 20,280 kg
- Design racing displacement
- Sea trials sailed at
- ≈ 21,500 kg
- As-built racing displacement
Every circled target was reached with the boat about 1.2 tonnes heavier than the weight the predictions assume.