Ambrose Light, NY → Bishop Rock, Isles of Scilly. 3,106 nautical miles of absolute velocity.
Built by Fincantieri, Destriero isn't a boat—it's a weapon. Three General Electric LM2500 gas turbines producing roughly 60,000 horsepower total, fed through three Kamewa waterjets. She made the crossing without refueling, a feat that required fuel efficiency at the engineering limit and a crew that understood they were steering a flying machine across water.
The Virgin Atlantic Challenge Trophy has hung on her for 34 years. It's still there.
Nobody wants to spend the money. The fuel alone would cost hundreds of thousands of dollars. You need a purpose-built vessel designed specifically for this run. The operating costs, development costs, and fuel burn at 50+ knots across the Atlantic make the economics work for exactly two things: government budgets and maniac billionaires. Everyone else is building better yachts.
Fuel Logistics: You're burning through thousands of gallons per hour at sustained high speed. 3,106 nm means you need enough tankage and engineering to cross without refueling—or accept a refueling stop that kills your time.
North Atlantic Weather: This route isn't seasonal. You cross when you attempt it. The Gulf Stream is a feature, not a bug, if you're fast enough to use it. But getting it wrong costs hours.
Sea State Management: At 50+ knots, a 12-foot swell becomes a structural problem. The ride is violent. Hull integrity, engine vibration, crew fatigue—they all compound at speed.
A modern attempt with current turbine technology and composite construction could potentially break 50 hours. The engineering exists. Better fuel efficiency, more horsepower-per-pound, better hydrodynamics—all available now. But who's writing the check? That's the only question that matters.