Category Archives: Aviation history

Learning Code By Sleep Learning, 1923

Screenshot 2023-12-12 10.36.16 AMA hundred years ago, these naval aviators look like they’re sleeping on duty, but sleeping was their duty. They are busy learning Morse code, and the Navy discovered that they could do so by sleep learning. While they were asleep, messages were sent to them at increasingly higher speeds. It was found that when they woke up, they were able to copy that speed. In fact, some of the trainees were able to recite the messages that had been sent to them while they slumbered.

The photo appeared in the December, 1923, issue of Popular Mechanics.



UFOs and IFOs by Gardner Soule

UFOsAndIFOsI recall checking out the book shown here, UFOs and IFOs: A Factual Report on Flying Saucers, by Gardner Soule, from the library in my elementary school. Looking at the reviews on Amazon, it looks like this particular tome made its way into a lot of elementary school libraries. In any event, it was a scholarly look at the UFO phenomenon, and since it was presumably vetted by the school librarian, it must have been real science.

The author was a fairly prolific writer about topics that we might today call the paranormal. He specialized in cryptozoology, and according to Wikipedia, his most famous work was Maybe Monsters.  (But in my opinion, UFOs and IFOs was the most popular.)  He specialized in books for young readers, and his works appeared in Boys’ Life and Popular Science.

The main thing I remember from this book, though, was his advice as to preparing for encountering a UFO. If you happened to be in a position to observe a UFO, then it was more or less an obligation that you would use the opportunity to gather data for use by the scientific community. I believe that one item he recommended that you carry with you at all times was a small compass, so that you could report back to the scientists any magnetic activity from the UFO. But the specific recommendation that I remember was that you carry with you at all times a diffraction grating. Armed with this, you would be able to determine the spectrum of light from the craft. Scientists would then be able to use this information to ascertain the materials used in the craft.

I forget whether I took to carrying a compass with me, but I never did figure out how to get my hands on a diffraction grating for my everyday carry. Thankfully, kids (and adults) today have Amazon, and you can get everything at Amazon, including diffraction gratings.

If you see a UFO, and don’t have a diffraction grating in your pocket, you’re going to feel embarrassed, especially since we gave you this reminder. The scientists won’t be happy. Therefore, we recommend that you order one immediately:



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First Airplane Landing in Grand Canyon: 1922

1922DecPMIf you tried this today, the National Park Service and the FAA would probably seize your airplane and haul you off to jail. But a hundred years ago this month, the cover of the December 1922 issue of Popular Mechanics showed the first ever landing of an airplane in the Grand Canyon.

Aviator Royal D. Thomas, accompanied by photographer Anthony Ugren, successfully landed the plane at Plateau Point, despite the treacherous air currents that were known to exist there. “To the Indians who had assembled in their best paint and feathers, it must have been an awe-inspiring sight, similar to that of earlier generations of red men who saw the centaurlike cavaliers of the Spaniards and the steam train for the first time.”

The landing of the 180 horsepower plane took place on the morning of August 18. The next morning, the upward flight out of the canyon took 4-1/2 minutes, although Thomas estimated that it would have taken a minute longer if he hadn’t caught an upward air current that lifted him nearly 1500 feet.



1922 Drone Delivery

Popular-Wireless-1922-11-S-OCR-1Amazon might be starting drone delivery any day now, but as we can see here, it’s not a new idea. A hundred years ago this month, the cover of the November 1922 issue of Popular Wireless showed Major Raymond Phillips’ “famous” method for wireless controlled aerial mail.  The issue included part of a series written by Major Phillips with some of the technical details of his system.



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1922 Skywriting

1922OctSciInvThis artist’s conception of skywriting appeared a hundred years ago this month, in the October 1922 issue of Science and Invention.

While this advertisement never appeared in the skies of New York, the magazine did report that London residents, startled by the sound of an airplane, found the words “Daily Mail” written in the sky.

The magazine reported that the plane’s exhaust was routed through a tank containing oils and chemicals to produce the writing, described as dense black smoke.

The term “skywriting” had apparently not yet been coined, and the magazine’s title for the article was simply “Airplane Writes Words in Smoke.”



1952 Transatlantic Television Ideas

1952OctWirelessWorldSeventy years ago this month, the October 1952 issue of the British Wireless World carried this illustration showing possible methods of linking American and European television. The diagram had actually first appeared two months earlier in the August 1952 issue of Tele-Tech as part of an open letter to the President of the United States (which would have been Harry S Truman) imploring action on TV networking with Europe and South America.  According to the magazine, American homes would be able to view the great events of Europe, live, but “the underprivileged of Europe can be shown the wonderful richness of life in America.”

The diagram showed the potential methods, the first of which being an “airplane-relay between a dozen or more express planes continuously flying a regular route across the ocean,” presumably carrying 16-mm film.

The next idea was Stratovision, the use of a string of aircraft aloft, each relaying the signal to the next plane. As we previously showed, this system was tested, and even used to a certain extent, in the United States. But doing it over the Atlantic would require a set of aircraft carriers on which the planes could land, which would likely make the idea much less feasible.

The next idea was a string of VHF relay stations through Labrador, Baffin Island, Greenland, Iceland, the Faeroe Islands, and the Shetland Islands. The longest link would be 290 miles, meaning that the idea might be feasible. If this idea sounds familiar, it’s because it’s similar to one we talked about earlier, one proposed by David Sarnoff in 1951, although his plan envisioned the link going the other way, over the Bering Strait. Other ideas included a submarine coaxial cable, or scatter transmission, essentially the use of brute force to propagate VHF signals over the horizon. It also mentioned “miscellaneous marginal proposals,” such as use of moon reflections, which of course depended on the moon being visible over both continents, which would happen for about five hours per day.

One of the first transatlantic broadcasts was the coronation of Queen Elizabeth the following year. It was first seen on American television courtesy of 16-mm film flown by the RAF to Gander, Newfoundland, to the CBC, which was then picked up by American networks. The first live transatlantic broadcast didn’t take place until 1962, and it relied upon a method not anticipated by the 1952 article, namely, the use of the Telstar 1 satellite.  While Telstar was the first transatlantic use of satellite, it should be pointed out that it wasn’t the first television transmission by satellite. Those honors go to Echo 1, which successfully relayed signals via a passive reflector between the east and west coasts of the U.S.



First Flight From Aircraft Carrier, 1922

USS Langley. Wikipedia photo.

USS Langley. Wikipedia photo.

A hundred years ago today, October 17, 1922, marked the first time that an aircraft took off from a U.S. aircraft carrier, the USS Langley (CV-1).  While aircraft had previously taken off from ships, this was the first time that a ship specifically designed for that purpose had been used.  The ship had previously been a collier in World War 1, and had been newly converted.  That first plane was piloted by Lt. Virgil C. Griffin.

The ship had served as a collier in World War I, and was converted to a seaplane tender prior to World War II, in which she also served.  The ship was damaged in 1942 and scuttled.



1922 Radio Scouting

1922JuneBLWe’re not told exactly what these scouts were doing, but it was obviously important. While the plane flies over, one is watching with the binoculars, and the other is listening to some important message on the radio.

The illustration, by Douglas Duer, appeared a hundred years ago this month in the June 1922 issue of Boys’ Life.

The issue contained a number of features about wireless, including one fiction story, as well as detailed instructions for constructing a crystal set. It also included this sad tale of the sinking of the SS Grøntoft.

1922JuneBL2

 



Navy Needs 500,000 Model Airplanes: 1942

1942AprBLEighty years ago this month, this naval officer was explaining to these scouts the finer points of model airplane construction. But it wasn’t just fun and games. These model airplanes were vital to the Navy’s training program, and Secretary of the Navy Frank Knox had called upon the youth of America to make a half million scale models–10,000 each of 50 different fighting planes.

In the April 1942 issue of Boys’ Life, Chief Scout Executive James E. West stressed how Scouts were especially equipped to handle this call. Models were had to be exact replicas of the ally and enemy planes, and were to be built to a precise scale of 1:72. At this scale, a model 35 feet away is identical to the true airplane at just under half a mile. Thus, Navy men could use these models for aircraft recognition, range estimation, formation flying, and other phases of the training program.

1942AprBL2Inspectors would review each model, which had to be perfect. Upon passing inspection, the model planes would immediately be put into service for training. Plans would be in the possession of schools, and the Navy pointed out that modern war was so complex that it demanded the skills of all, including the boy of 12, to provide some of the services and materials needed by our forces.

According to the Navy, “it is scarcely necessary to stir the interest of American boys and girls in aviation, since many of them expect to grow up to be pilots, and this project channels that interest toward an educational objective of immediate value.”

Elsewhere in the same issue, to give Scouts a head start, appeared the guide at left to recognizing some of the enemy’s planes.



1921 Vacuum Airship

1921NovSciInv2The November 1921 issue of Science & Invention contains an idea that I thought of independently. A lighter-than-aircraft relies upon the fact that a gas such as hydrogen or helium is lighter than air. But instead of filling the balloon with hydrogen or helium, you’ll get even more lift if you fill it with vacuum!

The idea had been proposed, and the article, penned by H. Winfield Secor was entitled, “Is the vacuum airship practical?” There was reportedly one under construction in Italy. Despite my having the idea, and despite the Italians trying to make one, I’ve never heard of such a thing, and Secor explains the probable reason:

Stop to think for a moment just what kind of construction will have to be employed in building compartments capable of being exhausted to almost a perfect vacuum. You will remember that our physics books taught us that unless a chamber is very strong, it would collapse, due to atmospheric pressure, when a perfect vacuum was produced. It would thus seem that after we have built an airship with compartments strong enough to withstand the outside atmospheric pressure when the air is pumped out of them, we can hardly expect the airship to rise, even if it only has to carry up its own frame.

Lo and behold, Wikipedia has an entry for vacuum airship, and the idea has been around since at least 1670.  But undoubtedly for the reasons stated a century ago, the idea literally never got off the ground.