The Curtiss NC-4, the First Aircraft to Cross the Atlantic, and the Navy Flying Boat at Pensacola That Beat Lindbergh by Eight Years

The first aircraft to cross the Atlantic Ocean is not in Washington. It’s hanging in Pensacola. On May 31, 1919, a U.S. Navy flying boat called the NC-4 completed the first transatlantic crossing by air - eight years before Charles Lindbergh and two years before Alcock and Brown made the nonstop flight that history remembers instead. Six men flew it. The aircraft still exists.

Why Most Pilots Get This Wrong

Ask a pilot who flew the Atlantic first and they’ll say Lindbergh. The better-read ones say Alcock and Brown. Both answers are defensible - but both are incomplete. The actual first transatlantic crossing by air belongs to the United States Navy, and it happened in 1919, not 1927.

NC-4 is forgotten for reasons that are partly structural and partly human. Alcock and Brown flew nonstop. Lindbergh flew solo. Both are cleaner stories. NC-4 made a multi-stop crossing with a crew of six and a fleet of Navy destroyers positioned across the ocean as navigation aids. History almost always goes to the simpler narrative.

What the Curtiss NC-4 Was

The Curtiss NC-4 was a flying boat of a scale that was almost without precedent in 1919. NC stood for Navy-Curtiss, reflecting the partnership between the U.S. Navy and the Curtiss Aeroplane and Motor Company. Its wingspan stretched 126 feet tip to tip.

Power came from four Liberty 12-cylinder engines, each producing around 400 horsepower, arranged in push-pull pairs between the wings. The aircraft carried a crew of six and enough fuel to cross ocean distances. It was not fast, and pilots described the handling as deliberate. What it was, was large enough to do a job nobody had done.

Why 1919: The Post-War Aviation Surge

The Great War had ended. Four years of industrialized warfare had accelerated aircraft engine technology at a pace peacetime never would have achieved. Engines that produced barely 100 horsepower in 1914 were producing 400 by 1918. Trained aviators came home with skills and nowhere to apply them.

The British newspaper the Daily Mail had offered a prize of £10,000 for the first nonstop flight between North America and the British Isles. Teams were assembling. The race was on.

The U.S. Navy declined to compete for the prize. Their objective was not a headline - it was proof that naval aviation could operate as a military instrument across ocean distances. Range. Reliability. A crew that could fly a mission, not merely survive one.

The Mission: Four Aircraft, Three Legs

The Navy planned to send four NC boats: NC-1, NC-2, NC-3, and NC-4. Before the mission began, the NC-2 was cannibalized for parts to keep the other three airworthy. That maintenance reality preceded the first mile of ocean.

The route ran in three stages: from Rockaway Beach, Long Island to Trepassey Bay, Newfoundland; then across the North Atlantic to the Azores; then on to Lisbon, Portugal and finally Plymouth, England. Total distance: roughly 4,000 miles.

On May 8, 1919, NC-1, NC-3, and NC-4 lifted off from Rockaway Beach and flew northeast toward Newfoundland. The transatlantic legs would follow from Trepassey.

The Sixty-Eight Destroyers

The U.S. Navy positioned 68 destroyers in a line stretching from Newfoundland to the Azores, spaced roughly 50 miles apart. At night, each ship burned searchlights and fired star shells to mark its position. By day, they generated smoke columns as visible references from altitude.

Critics have always used those ships as grounds for diminishing the crossing - calling them a navigation crutch, a safety net. The counterpoint is direct: the destroyers could not fly the aircraft. They could not make decisions in fog over the North Atlantic in the dark. Every mile was still on the crew.

Beyond the destroyer line, the operation included submarine chasers, patrol vessels, and shore-based weather stations feeding information to mission planners. This was not an improvised adventure. It was an institutional commitment from the eastern arm of the U.S. Navy, aimed at three flying boats.

The Night the Formation Broke Apart

The three aircraft departed Trepassey Bay on the evening of May 16, 1919. Within hours, dense North Atlantic fog moved in, blotting out the destroyer line below and the stars above. The formation separated in the murk. Each crew was now alone over open water.

The conditions inside the aircraft were punishing. Four Liberty engines at full power created noise that made conversation impossible. Crew members communicated by hand signal and written notes. No heating. No pressurization. No autopilot. No weather radar. Just instruments, a magnetic compass that did not love flying boats, and whatever was visible through the windscreen.

NC-1 eventually came down on the open sea when the crew could no longer determine their altitude through the fog. The aircraft hit rough water hard, was damaged beyond recovery, and eventually sank. The crew was rescued by a Greek merchant vessel. Six men safe; one aircraft gone.

NC-3, commanded by Captain John Towers - the organizer of the entire expedition - also came down in open water with a damaged hull. Towers made the decision to taxi his crippled aircraft across the open ocean toward the Azores. For nearly two days, the crew of NC-3 taxied and drifted across miles of open Atlantic, using nothing but the direction of the swells for guidance. They reached Ponta Delgada alive. But they could not continue.

The Crew That Made It

That left NC-4.

The commanding officer was Lieutenant Commander Albert Cushing Read, known to his crew as Putty. Read was methodical and precise - a pilot who thought rather than reacted under pressure, the kind of quiet confidence that comes from having been in genuine trouble before. The primary pilot was Coast Guard Lieutenant Elmer Stone, a detail that still surprises people. A Coast Guard officer flew a Navy aircraft on the most consequential naval aviation mission in the history of the service because he was simply the finest aviator available. Nobody argued.

When the same fog that brought down NC-1 and NC-3 closed in, Read climbed. He took NC-4 up through the overcast and navigated by stars when they were visible and by dead reckoning when they were not, trusting his crew and his instruments and his preparation.

After 15 hours and 13 minutes in the air, NC-4 descended through the cloud layer and found the island of Flores in the Azores. They landed at Horta. The first open-ocean leg was behind them.

Lisbon and Plymouth: The Crossing Completed

NC-4 spent nearly two weeks in the Azores waiting for weather and completing engine maintenance. The Liberty engines were overhauled by the crew, who were also their own mechanics. Parts were improvised. Weather reports were argued over.

On May 27, 1919, NC-4 departed Ponta Delgada for Lisbon. She landed in the Tagus River as crowds lined both banks of the estuary. People stood on rooftops. Small boats crowded the water. The Portuguese government received the crew with ceremonies and decorations from the Portuguese Navy.

On May 31, 1919, NC-4 lifted off from the Tagus and flew the final leg to Plymouth Sound, England. The first transatlantic crossing by air in history was complete. Read’s crew returned to parades in New York. Congressional Medals were awarded.

Why History Forgot NC-4

On June 14, 1919 - less than two weeks after NC-4 touched down at Plymouth - John Alcock and Arthur Brown took off from Newfoundland in a modified Vickers Vimy and flew nonstop to Ireland in 16 hours and 12 minutes.

The world largely forgot about NC-4.

Alcock and Brown’s achievement was genuinely extraordinary: nonstop, two men, one engine, no destroyer line. It was also a better headline. When the cleaner story exists, the more complicated one loses the cultural memory. There is no malice in it. That is simply how public history works.

Why NC-4 Actually Matters for Aviation

NC-4 was not a stunt. It was a proof of concept - institutional, deliberate, and replicable. Read and his crew demonstrated that Atlantic crossings were not suicide missions. That aircraft engines could sustain operation for the required hours. That navigation without landmarks was achievable. That crews could manage cascading failures and bring a mission home when two other aircraft had gone into the water around them.

Alcock and Brown had the courage to attempt a nonstop crossing partly because NC-4 had already shown the Atlantic could be flown. Lindbergh, in 1927, was building on eight years of transatlantic aviation history that started in May 1919.

The destroyers are beside the point. They marked the highway. The flying was on the crew.

Where to See the NC-4 Today

The NC-4 is on permanent display at the National Naval Aviation Museum at Naval Air Station Pensacola, Florida. The museum is free to visit - a photo ID at the base gate is the only requirement. The aircraft has been restored over the decades, but the core structure - hull and airframe - is original.

The museum also holds early Navy fabric biplanes, F-14 Tomcats, and decades of Blue Angels show aircraft. The NC-4 hangs in the main hall.

Standing beneath the 126-foot wingspan and looking up, you are looking at the actual machine that settled onto the Tagus River on a May afternoon in 1919 while people on the banks understood they were watching history.

Key Takeaways

The Curtiss NC-4 completed the first transatlantic crossing by air on May 31, 1919 - eight years before Lindbergh and two years before the nonstop crossing by Alcock and Brown.
The mission was a U.S. Navy operation, not a prize race. Its goal was demonstrating that naval aviation could function across ocean distances as a military instrument.
68 U.S. Navy destroyers were positioned across the North Atlantic as a navigation aid, but every mile of flight was on the crew.
Commanding officer Lt. Cmdr. Albert “Putty” Read and primary pilot Coast Guard Lt. Elmer Stone navigated NC-4 through fog and by dead reckoning after both sister aircraft were forced down into the sea.
NC-4 established that the Atlantic was flyable - a foundation that Alcock, Brown, and Lindbergh all built on. The aircraft is preserved at the National Naval Aviation Museum in Pensacola, Florida, and free to visit.