On 18 January 1911, a barnstormer from Iowa pointed a Curtiss pusher biplane at a wooden platform bolted to the stern of the USS Pennsylvania, anchored in San Francisco Bay — and landed. No arresting gear existed, so the ground crew had strung sandbag-weighted ropes across the platform. The aircraft’s tailhook — a crude metal hook added to the undercarriage — caught the ropes and dragged Eugene Ely to a stop with metres to spare. It was the first time anyone had landed an aeroplane on a ship. The pilot was 24 years old, had been flying for barely a year, and was doing it for prize money and newspaper headlines. He had no idea he was inventing naval aviation. Two months earlier, Ely had already proven the first half of the equation by taking off from a ship — the cruiser USS Birmingham — in Norfolk, Virginia. The landing on the Pennsylvania completed the circuit and proved that aircraft could operate from warships. The entire concept of the aircraft carrier — from Midway to the USS Ford — traces its lineage to those two flights.

The Birmingham Takeoff

The idea came from Captain Washington Irving Chambers, the U.S. Navy’s first aviation enthusiast. Chambers convinced the Navy to build a wooden platform over the bow of the cruiser USS Birmingham and hired Ely — a civilian exhibition pilot working for Glenn Curtiss — to attempt a takeoff. The Navy wanted to know if aeroplanes had any military value at sea. On 14 November 1910, with rain falling and visibility poor, Ely rolled his Curtiss pusher down the 25-metre platform and dropped off the edge. The aircraft dipped so low that the wheels touched the water, spraying Ely’s goggles with salt. He wiped them clear, pulled up, and flew 4 kilometres to shore. The takeoff worked. But taking off from a ship is the easy part. Landing on one — that was the question that mattered.

Landing on the Pennsylvania

Two months later, Ely was ready to complete the circuit. The USS Pennsylvania had been fitted with a 36-metre wooden platform extending from the stern, angled slightly upward. Across the platform, the crew stretched 22 ropes weighted with 25-kilogram sandbags on each end. The idea was simple: hooks on the aircraft’s undercarriage would catch the ropes and drag the plane to a stop. There was no second chance. If Ely missed the ropes, he would slam into a canvas barrier at the end of the platform — or go over the side into the Bay. If he came in too high, he would overshoot entirely. If his engine failed on approach, he would ditch. Ely approached from the stern, touched down, and his hooks caught the ropes. The sandbags dragged and bounced, and the Curtiss shuddered to a stop. The entire landing roll was less than 10 metres. The ship’s crew erupted. He then had lunch with the captain, turned the aircraft around, and took off from the same platform to fly back to shore.

The Tailhook Is Born

The sandbag-and-rope system Ely used was designed by circus performer and engineer Hugh Robinson. It was crude, but it worked — and the principle remains identical today. Modern carrier aircraft use a tailhook to catch one of four arresting wires stretched across the flight deck. The wires are connected to hydraulic engines that absorb the aircraft’s energy. The concept has been refined over 115 years, but the fundamental idea — hook catches wire, wire stops plane — has not changed since Ely’s landing on the Pennsylvania.

A Pioneer’s End

Eugene Ely never saw what his invention became. On 19 October 1911 — nine months after the Pennsylvania landing — he was killed during an exhibition flight in Macon, Georgia. His aircraft failed to pull out of a dive, and he crashed in front of spectators. He was 25 years old. The U.S. Navy did not award Ely a posthumous commission until 2011 — exactly 100 years after his landing. He was given the rank of lieutenant, and the citation noted that his flights “were of such significance that they changed the course of naval warfare.” From a 36-metre wooden platform on a cruiser in San Francisco Bay to the 333-metre flight deck of the USS Gerald R. Ford — every carrier landing in history descends from Eugene Ely’s 10-metre roll on 18 January 1911. Sources: National Naval Aviation Museum, Smithsonian NASM, U.S. Naval Institute