PROBABILITY — 122' Delta Marine Superyacht for Sale

PROBABILITY is a 1997 Delta 122, drawn from Delta Marine's most successful production tri-deck series and representing the Seattle yard at its most refined in the late-1990s category. Where each Delta is essentially custom at the interior level, the 122 platform was produced as a repeatable design with proven hull performance and layout, and this example shows what the series looks like when an owner commits to it long-term. The boat has been professionally maintained since launch with documented technical reports and survey materials available, continuous mechanical care, and the kind of ownership history that rarely shows up on the brokerage market: a single program of consistent upgrades and engineering oversight rather than the maintenance-skip pattern that tends to define yachts of this vintage.

At 37.2 meters (122 feet) overall length, 26-foot (7.9m) beam, 6-foot (2m) draft, and 280 gross tons, she delivers the interior volume of the Delta tri-deck arrangement with a shallow enough draft to keep Bahamas and Florida Keys cruising open. Accommodations handle eight guests across four cabins and six crew, with interior design by Merritt-Knowles, the Seattle firm responsible for some of the more recognizable tri-deck interiors of the era, and exterior lines by the Delta Design Group. The engine room presents as clean and organized, which for buyers experienced with vintage American tri-decks is a direct proxy for how the rest of the boat has been run.

The systems package backs up the maintenance story. Twin MTU 16V 2000 main engines push her to a 17-knot top speed, supported by dual 65kW Phasor generators, Atlas Marine shore power conversion, Quantum zero-speed stabilizers, and a thoughtfully designed AC/DC distribution architecture. Quantum stabilization matters specifically: zero-speed performance at anchor was far less standard on 1997 builds than on current ones, and retrofitting it properly is a serious investment. For a buyer comparing this listing against newer production boats in the 120-to-130-foot U.S.-built category, the pitch is specific: proven hull, documented ownership, complete systems refresh, and a boat where the mechanical and electrical fundamentals have been addressed rather than deferred.

PROBABILITY is currently located in United States in Palm Beach Gardens, Florida.

Email Us +1 954 768 0707

Asking Price

$8,975,000 USD

(€7,656,034 EUR EST.)

Length 122' / 37.2m

Beam 26' / 7.9m

Draft 6' / 2m

Builder DELTA MARINE

Built / Refit 1997 / 2019

Hull Fiberglass

Gross Tonnage 280