The Wright brothers were the first to fly in a heavier-than-air machine.    From Wordnik.com.  [The Friday Brain-teaser from Credo Reference] Reference

Wood is not employed in the construction of these heavier-than-air craft.    From Wordnik.com.  [Aeroplanes and Dirigibles of War] Reference

It's even possible that there were other heavier-than-air flights before the Wright's.    From Wordnik.com.  [The Speculist: Push or be Pulled] Reference

Besides these, seven heavier-than-air machines started, all making for Newfoundland also.    From Wordnik.com.  [Around the World in Ten Days] Reference

How then can a heavier-than-air machine triumph over the unwieldy lighter-than-air antagonist?.    From Wordnik.com.  [Aeroplanes and Dirigibles of War] Reference

No one has ever built a heavier-than-air passenger aircraft that flies on anything but fossil fuel.    From Wordnik.com.  [Tories plan £20bn 180mph rail link instead of Heathrow third runway « Stephen Rees’s blog] Reference

Yes, we can build heavier-than-air flying machines, land on the Moon, defeat fascism and communism.    From Wordnik.com.  [Terrance Heath: Three Questions, Pt 1.: Can We?] Reference

All of us agree that it is impossible for a heavier-than-air device to fly on its own through the air.    From Wordnik.com.  [Stories from the Old Attic] Reference

In the duty of reconnoitring the dirigible possesses one great advantage over its heavier-than-air rival.    From Wordnik.com.  [Aeroplanes and Dirigibles of War] Reference

But such visitations are more to be dreaded by the lighter-than-air than by the heavier-than-air machines.    From Wordnik.com.  [Aeroplanes and Dirigibles of War] Reference

Many of you may not realize that the first heavier-than-air flight in the British Empire was made in Canada.    From Wordnik.com.  [The Aircraft Industry in Canada and the Future Development of Jet Engines] Reference

About a hundred years ago, the problem of flying a heavier-than-air flying machine hadn't been solved either.    From Wordnik.com.  [Where is NASA Going? Rumors Fly | Universe Today] Reference

"But what would you think if I told you that there is not an ounce of gasoline in my heavier-than-air craft?".    From Wordnik.com.  [Astounding Stories of Super-Science February 1930] Reference

Here was a heavier-than-air machine with, to begin with, an air frame of totally different structure and design.    From Wordnik.com.  [The HurricaneStory]

In the heavier-than-air machine there is no automatic improvement in efficiency resulting from greater dimensions.    From Wordnik.com.  [British Airships, Past, Present, and Future] Reference

You know -- Lord Kelvin, remembered chiefly these days, if at all, for saying heavier-than-air flight wouldn't work.    From Wordnik.com.  [Analog Science Fiction and Fact]

But, honestly, I enjoy reading demonstrations of the impossibility of heavier-than-air flight or a sub-four-minute-mile.    From Wordnik.com.  [E pur si muove] Reference

On December 17, 1903, Orville Wright lay inside the first heavier-than-air powered craft that permitted controlled flight.    From Wordnik.com.  [Proclamation On Wright Brothers Day] Reference

DIONNE ANGLIN, KRON-TV REPORTER (voice-over): Children are lower to the ground where heavier-than-air chemicals would fall.    From Wordnik.com.  [CNN Transcript Oct 22, 2001] Reference

On December 17, 1903, Orville and Wilbur Wright completed the first successful manned flight of a heavier-than-air machine.    From Wordnik.com.  [Statement By The President On Centennial Flight] Reference

People thought heavier-than-air craft were a physical impossibility until somebody figured out that their physics was wrong.    From Wordnik.com.  [A Month of Writers, Day Two: Charles Stross « Whatever] Reference

That way lies scientistic dismissals of heavier-than-air flight because this would clearly be in contravention of the law of gravity.    From Wordnik.com.  [Bukiet on Brooklyn Books] Reference

This is one reason why the machine-gun armament of aerial craft of the heavier-than-air type has not undergone extensive development.    From Wordnik.com.  [Aeroplanes and Dirigibles of War] Reference

I seem to have missed him explaining the Newtonian laws of motion, or electricity or detailing how heavier-than-air flight might work.    From Wordnik.com.  [Creationism at Italian Science Agency - The Panda's Thumb] Reference

This is not the right time to go into the pros and cons of the controversy between the lighter-than-air and the heavier-than-air machines.    From Wordnik.com.  [Competition and International Commercial Transportation] Reference

The Aeroscraft is a heavier-than-air vehicle currently in development for use in the near future -- a prototype should be finished by 2010.    From Wordnik.com.  [The Speculist: April 2006 Archives] Reference

But they won't have the fuel for heavier-than-air craft, anyhow not in their earlier stages; and they won't have the helium for blimps like ours.    From Wordnik.com.  [There Will Be Time]

Let us suppose that you are one of the majority of heavier-than-air persons who will shortly be wanting a good steady machine to rise to any ordinary occasion.    From Wordnik.com.  [Punch, or the London Charivari, Volume 156, June 11, 1919] Reference

In 1895 Lord Kelvin, the mathematician, physicist and president of the Royal Society, assured his audience that "heavier-than-air flying machines are impossible.".    From Wordnik.com.  [Victor Navasky: The Difference Between Being Opinionated (Bad) and Having an Opinion (Good)] Reference

The concept of the Hawker Hurricane had existed ever since the day when in the heavier-than-air flying machine of the Wright brothers the military men had found a new weapon.    From Wordnik.com.  [The HurricaneStory]

Previously, heavier-than-air flight in England had been regarded as.    From Wordnik.com.  [A History of Aeronautics] Reference

Wrights had wakened to the possibilities of heavier-than-air flight.    From Wordnik.com.  [A History of Aeronautics] Reference

Linux operating system the development of a heavier-than-air, fixed wing aircraft by the.    From Wordnik.com.  [Conservapedia - Recent changes [en]]

I want the cadets to learn something about the fundamentals of heavier-than-air machines.    From Wordnik.com.  [Dick Hamilton's Airship, or, a Young Millionaire in the Clouds] Reference

V. Roe was the first successful heavier-than-air flying machine built by a British subject.    From Wordnik.com.  [The Aeroplane Speaks Fifth Edition] Reference

It would seem to be equally essential in the case of heavier-than-air machines, but this point is still debated.    From Wordnik.com.  [A History of Aeronautics] Reference

He showed that a heavier-than-air machine would sustain itself in the air if it could only be driven fast enough.    From Wordnik.com.  [American Men of Mind] Reference

Next only to the Butteridge machine, these were certainly the most efficient heavier-than-air fliers that had ever appeared.    From Wordnik.com.  [The War in the Air] Reference

Company, stationed at Larkhill, marked the first formation of a British military unit composed entirely of heavier-than-air aircraft.    From Wordnik.com.  [Aviation in Peace and War] Reference