Glenn Curtiss, the June Bug, and the Fourth of July in Nineteen Oh Eight When America First Measured a Man Flying

On July 4, 1908, motorcycle racer and engine builder Glenn Hammond Curtiss flew a yellow biplane called the June Bug more than one kilometer in a straight line near Hammondsport, New York - the first flight in America witnessed, timed, surveyed, and officially recorded. The Wright brothers had flown years earlier, but they flew in secret; Curtiss flew in front of judges with stopwatches. His flight won the first Scientific American trophy ever awarded and gave the public documented proof that powered flight was real.

Why Curtiss’s flight mattered when the Wrights had already flown

By 1908, the Wright brothers had been flying for four and a half years. They achieved powered flight at Kitty Hawk in 1903 and later flew circuits over a pasture in Ohio. But the Wrights were secretive, fearful that rivals would steal the ideas protected by their patents.

So they flew in private. No reporters, no scientists, no witnesses. Half the country dismissed the whole business as a hoax - two bicycle mechanics telling tall tales.

That is why the flight that got measured with a surveyor’s chain, photographed, and telegraphed coast to coast belonged not to the Wrights, but to a quiet motorcycle racer from the Finger Lakes.

Who was Glenn Curtiss before the June Bug?

Curtiss didn’t start out chasing the sky - he chased speed on the ground. He built bicycles, then engines to bolt onto them, then motorcycles. His genuine gift was for building a light, powerful engine that would keep running.

In 1907, at Ormond Beach, Florida, Curtiss ran a motorcycle powered by a V-8 engine he’d built for airship makers down the hard sand and clocked 136 miles per hour. The press called him “the fastest man on earth,” a title no motorcyclist would beat until well after World War I.

That reputation made him the man the aviation world came looking for when it needed a lightweight engine that made real horsepower without shaking itself apart.

The Aerial Experiment Association and the birth of the aileron

One of the people who came calling was Alexander Graham Bell. The inventor of the telephone, by then an elder statesman with a deep curiosity about flight, had assembled a group of young engineers he called the Aerial Experiment Association (AEA). Bell supplied the vision, and some of the funding came from his wife, Mabel Bell.

The group included Frederick “Casey” Baldwin, J.A.D. McCurdy, Army Lieutenant Thomas Selfridge, and Curtiss - the engine man who could actually make a machine fly. Each member would design an aircraft, and the whole group would build it together, taking turns.

Their first machine, the Red Wing, flew briefly and crashed. The second, the White Wing, introduced something you used on your last flight without thinking: ailerons - small hinged surfaces near the wingtips that roll the airplane.

This was the key difference from the Wrights. The Wrights rolled their aircraft by warping - physically twisting the entire wing with cables. The AEA used a separate hinged surface, the direct ancestor of the ailerons on every Cessna and every Boeing 777 today. That single distinction - warping versus hinging - would ignite one of the ugliest legal fights in aviation history.

What was the June Bug airplane?

The AEA’s third aircraft was Curtiss’s own design, and he named it the June Bug. It was a biplane built from spruce, bamboo, wire, and rubberized silk, with a wingspan of about 42 feet.

A forward elevator - they called it a forward rudder - stuck out ahead of the pilot on an outrigger. The pilot sat in the open on the lower wing, with no cockpit and no windscreen. Behind him sat a Curtiss V-8 engine of roughly 40 horsepower, spinning a pusher propeller, its exhaust barking straight into the air with no muffler.

The wings were doped yellow. In the low evening sun, a yellow biplane buzzing across a green field looked exactly like a June bug - and the name stuck.

The Scientific American challenge and the Fourth of July flight

Scientific American magazine had put up a silver trophy for the first public flight in America of one kilometer - about six-tenths of a mile - in a straight line, officially observed and timed by the Aero Club of America.

The Wrights were invited to attempt it first. They could easily have won - they’d flown far greater distances for years - but they declined, saying their machine wasn’t configured for a straight-line dash, and still unwilling to reveal their secrets in public. The door stood wide open, and Curtiss walked through it.

The attempt was set for Independence Day at Stony Brook Farm, in Pleasant Valley near Hammondsport. It had rained; the ground was soft and the sky gray. That morning, a trial run revealed the marked course was too short, so the crew moved the starting line back to give the June Bug room to get airborne and settled before crossing the flag.

The crowd waited most of the day for the weather. Toward evening, around 7:00 p.m., the air went still in that glassy calm pilots wait for. Curtiss climbed onto the lower wing, and the V-8 caught and roared.

How far and how fast did the June Bug fly?

The June Bug bounced across the wet ground, the tail lifted, and the wheels went quiet. Curtiss took her up to about 20 feet and held her low and steady, crossing the starting flag as the timers clicked their watches.

He flew straight and true - over a kilometer, over fences and a low rise, and kept going. In all he covered about one mile before setting down in a field.

His time in the air was 1 minute, 42 and two-fifths seconds, at a speed of just under 40 miles per hour.

What set this apart from every barnstorming rumor before it: judges stood right there. Charles Manly held the official watch, photographers recorded it, and the distance was surveyed. The Aero Club of America certified the result, and it went out over the telegraph that night, appearing in newspapers coast to coast the next morning. Curtiss won the first Scientific American trophy ever awarded - and by winning it three years running, he eventually got to keep it.

The patent war between Curtiss and the Wrights

Before the June Bug ever flew, Orville Wright wrote to Curtiss and warned him that the movable wingtip surfaces infringed the Wright patent on controlling an aircraft’s roll. Fly for a prize with them, Orville warned, and there would be a lawsuit.

Curtiss flew anyway, and the patent wars began - years of litigation that grew bitter and personal. Many historians believe the feud set American aviation back, because while U.S. inventors sued each other, the French and Germans built, flew, and improved.

The Wrights invented powered flight - that stands. But they sought to own the very idea of controlling an aircraft in the air, and Curtiss argued the sky couldn’t be locked up that way. History largely flies on Curtiss’s ailerons: look out any wingtip today and you see his fingerprint.

The tragedy of Thomas Selfridge

There is a sadder thread. In September 1908, just two months after the June Bug flew, AEA member Lieutenant Thomas Selfridge went up as a passenger with Orville Wright on an Army demonstration flight at Fort Myer, Virginia.

A propeller cracked in the air and the Wright Flyer came down hard. Orville was badly injured, and Selfridge was killed - the first person ever to die in the crash of a powered airplane. One of Curtiss’s own AEA brothers was lost in a Wright machine, in the very season the two camps were squaring up to fight.

What Curtiss did after the June Bug

Curtiss didn’t stand still. In 1910, less than two years after the June Bug, he flew from Albany down the Hudson River to New York City - about 150 miles - to claim a $10,000 newspaper prize, a fortune at the time.

He went on to develop the practical seaplane at San Diego, taught the U.S. Navy to fly, and built the flying boats that would eventually cross oceans. His Curtiss JN-4 “Jenny” trained much of America’s first generation of pilots, including many of the early barnstormers.

The company he founded eventually merged with the Wright company to form Curtiss-Wright - the two names that fought in court for a decade ended up on the same building.

Key Takeaways

On July 4, 1908, Glenn Curtiss flew the June Bug over a kilometer near Hammondsport, NY - the first officially witnessed, timed, and documented flight in America.
His flight time was 1 minute, 42⅖ seconds, covering about a mile at just under 40 mph, and it won the first Scientific American trophy.
The Wrights had flown since 1903 but stayed secret; Curtiss made flight a publicly provable fact.
The June Bug’s ailerons - hinged wingtip surfaces, not the Wrights’ wing-warping - are the ancestor of modern roll controls and sparked a bitter patent war.
Curtiss went on to pioneer the seaplane, train the Navy, and build the JN-4 “Jenny,” and his company ultimately merged with the Wrights’ as Curtiss-Wright.