Wright Brothers first powered airplane
By 1903 the Wright Brothers were ready to build a powered man-carrying flying machine. Their experiments had shown them just how much moving air was necessary to create lift in such a machine. To create the needed thrust, an engine having eight horsepower and weighing not over 200 pounds had to be fitted into the machine. Such an engine was not available, so the Wrights built one in their shop at Dayton, Ohio. They were ready to ship their airplane to Kitty Hawk, N. C., in the fall of 1903.
The Wright Brothers experimental glider
After a year of exhaustive study and experiments with models in their wind tunnel, the Wright Brothers were ready to experiment with a man-carrying glider. With the thoroughness that was typical of every move of the Wrights, the brothers asked the government to let them have information on meteorological conditions all over the country. By studying the weather charts they were able to find a locality where there was a continual flow of wind. This would be nature’s wind tunnel where they could test their glider day after day. Through their study of the charts they found that the wind conditions at Kitty Hawk, on the North Carolina coast, seemed to offer the best possibilities for their glider test. Orville and Wilbur Wright began their experiments with a small man-carrying glider at Kitty Hawk in 1900. From that time until 1903 they made hundreds of successful glider flights and kept accurate records of each flight. They recorded wind velocity, angle of flight, duration of flight, time of day, temperature, humidity, and sky conditions overhead with the typical Wright attention to detail. Each year the Wrights constructed new gliders which embodied principles they had discovered for themselves during their flights at Kitty Hawk. Each glider was larger and had longer and narrower wings than the one before. During the fall of 1902 the brothers recorded nearly a thousand flights in a glider with a wingspan of thirty-two feet. It had a front elevator and a vertical tail which helped to maintain lateral stability.
The Four forces of flight
after testing more than 200 wing designs and plane surfaces in their wind tunnel, the Wright Brothers found out how to figure correctly the amount of curve, or camber, that was essential to weight-carrying wings. They discovered, too, that before man could be flown through the air, he must have his wings attached firmly to a body or platform which was firm and controllable. The Wrights in their earliest experiments had realized that to be practical their machine must be built not only to fly in a straight line, but also in order that it could be steered to the right or to the left. One day, Orville was twisting a cardboard box in his hand when Wilbur noticed it. Immediately he saw the solution to the problem of steering their airplane. The result was a design which changed the lift of either end of the wing by warping its surface. If one end of the wing was warped to give it more lift, the machine would lift on that side and fall off into a turn. Thus the problem of steering was solved by the Wrights
Wright Brothers' Wind tunnel
They found that a slight curve or camber in the wing section would cause the moving air to travel farther over the top of the wing surface than along the under side. This made the air pressure greater under the wing, gave a suction effect above the wing, and caused it to rise, creating lift. They discovered that a wing section of the proper camber would counteract the weight of gravity. Thus, a wing must be so designed that, with a certain amount of air flowing around it, it would lift a certain weight. They also discovered that air flow against any surface attached to the wing would cause a resistance or drag. Hundreds of experiments in their wind tunnel with various types of wing shapes gave the Wrights a series of tables from which to design a wing that would create the lift for a designed weight.
Wright Brotherrs wind tunnel
The Wright Brothers were not only inspired mechanics (as many people still believe today) but serious scientists, working along the soundest lines. In their keen desire to know what air pressure on wings really was, they cleared a corner of their bicycle shop and built a small wind tunnel with spare lumber and an old electric fan. They built small wing sections of various shapes and experimented with them in their wind tunnel. The electric fan was used to create the moving air around the wing section. By attaching the wing sections to a supporting frame and connecting the frame with a pointer and dial, they were able to keep a record of the effect of moving air on each experimental wing section. Through their wind tunnel research the Wright Brothers discovered the four forces that control all heavier-than-air flight: lift, thrust, weight, and drag.
Wright Brothers' Bicycle shop
Out in Dayton, Ohio, there were two small brothers, who dreamed, as countless other children before them had dreamed, of flying like birds through the air. Their dreams were heightened by a small toy given to them by their father, the pastor of a local church. This toy was to lead to an idea which had a profound effect on the world. You would probably call it a flying propeller. It consisted of a wooden propeller which slipped over a notched stick. By placing a finger against the propeller and rapidly pushing it up the notched stick, the propeller was made to whirl up off the end of the stick and fly into the air. The brothers, young as they were, never quite forgot this little toy as they continued to dream of flying like birds through the air. Though the brothers continued to dream of flying, they were not the kind of lads who spent all their time in dreaming. They made kites which flew a little better and a little higher than those made by the other boys in the neighborhood. They built a press to print their own little newspaper, and they dabbled in woodcuts. To carve out porch posts for their father’s home they built an eight-foot wood-turning lathe. Indeed, they were the sort of boys who caused the neighbors to say, “What will they think of next?” The brothers knew that if they ever wanted to see their dreams come true they must earn their own capital. In the early nineties America was in the midst of the bicycle craze. Everyone who could possibly afford to do so owned a bicycle of some sort and belonged to a cycle club. Being mechanically minded, the brothers did the logical thing. They set themselves up in a small bicycle shop in Dayton, next door to their home. The bicycle shop in Dayton prospered, for the brothers were careful and expert mechanics, and cyclists in need of repairs made their way to the Wright Brothers’ shop.
The Aerodrome
Langley built his plane without much difficulty, but could not find anyone to make an engine large enough for it. Finally, Charles Manley, an expert engineer, asked for permission to build the engine. Manley’s engine was a five-cylinder, radial gasoline engine that developed 51 horsepower and was far ahead of its time. It was years before American radial engines were used successfully in airplanes. Professor Langley called his machine the Aerodrome, and by October, 1903, the plane was ready for its test flight, with Manley to guide it. The Aerodrome was to be launched from a catapulting platform built on the roof of a houseboat. The houseboat was anchored on the Potomac River near Washington. As it left the platform the machine crashed into the river, and the trial was a dismal failure. The newspapers and the public ridiculed Langley, but he and Manley, who was unhurt in the crash, repaired the machine for another trial. This test took place on December 8, 1903, and again the Aerodrome crashed into the river. Manley once more escaped injury, but Langley and the government were abused by the public for wasting money. Langley was out of money himself, the government could not furnish funds for further trials, so the experiments were ended. The professor, discouraged and brokenhearted, gave up.
Octave Chanute experimenting with his gliders on the Michigan sand dunes
Octave Chanute, born in France and reared in America, was one of the first men to make a scientific approach to the problem of flying machines. A thorough scientist, he had followed the progress of all flight experiments the world over. He built gliders with one, two, and even five pairs of wings and tested all of them on the sand dunes of Lake Michigan. His most successful glides were made with a biplane glider. In 1894, he published a book called Progress of Flying Machines, which covered all the efforts of men like himself who had experimented with man-carrying gliders and flying machines.
Leonardo da Vinci's Glider and Parachute Idea
Leonardo da Vinci, the great Italian artist and scientist, who lived in the fifteenth century, spent years experimenting with the idea of flying. He made a number of sketches of wings to be fitted to the arms and legs of man. His plan for a parachute was soundly worked out and his idea that the wings of a flying machine should be patterned after the wings of the bat found expression in the doped fabric covering of our early airplanes.
Besnier and his wings
In 1678, Besnier, a French locksmith, constructed a curious flying machine consisting of two wooden bars which rested on his shoulders. At the ends of the bars he attached muslin wings, arranged to open on the down stroke and close on the up stroke. The wings were operated by moving the arms and legs. Although Besnier failed to realize that no man had sufficient muscular strength to fly as the bird flies, he did sense part of the truth—that gliding with the air currents was possible. During his experiments he is said to have jumped from a window sill, glided over the roof of a near-by cottage, and landed on a barge in the river.
The flight of Etana
Historians have unearthed stories in cuneiform writing of man’s attempts to fly. Some of these inscriptions date back more than five thousand years, to 3500 B.C. Perhaps the most famous of these stories is the ancient Babylonian tale of the shepherd boy, Etana, who rode on the back of an eagle.
Daedalus and Icarus
The story of Dædalus and Icarus also tells us that man believed flying was somehow possible. Dædalus was a very clever man who lived with his son Icarus on the Island of Crete. The king of this island requested Dædalus to build a labyrinth or maze for him. Dædalus constructed the labyrinth so cleverly that only the king, who had the clue to the winding passages, could find his way out. One day the king became very angry at Dædalus and threw both him and his son Icarus into the labyrinth, intending that they should perish. Dædalus, who had been dreaming of flying, fashioned wings from wax and feathers, with which he and Icarus could fly to freedom. He cautioned Icarus that he must not fly too high or the sun would melt the wax in his wings. Icarus, impatient to escape, scarcely listened. Like birds the two flew into the air, quickly leaving the walls of the labyrinth. Dædalus, flying low, safely crossed the sea and reached Sicily. Icarus, unfortunately, failed to heed his father’s warning. Flying was so much fun that he rose higher and higher. Suddenly feathers began to drop one by one. Too late Icarus realized that the sun had melted the wax in his wings. Down, down he fell into the sea.
The first Railway Journey in England
It was called the 'Locomotion.' George Stephenson stood ready to drive it as soon as the trucks, which a stationary engine was lowering down the slope by means of a wire rope, had been attached to it. In the first of these trucks came the Directors of the Railway Company and their friends, followed by twenty-one trucks (all open to the sky, like ordinary goods-trucks), loaded with various passengers, and finally six more waggons of coal. Such was the first train. A man on horseback, carrying a flag, having taken up his position in front of the 'Locomotion' to head the procession, the starting word was given, and with a hiss of steam, half drowned in the shouting of the crowd, the first railway journey ever made in England was begun.
Methods to get to the right place in a garage
When putting the car in place in the garage you must also maneuver carefully. The main thing is that you get in your place and as best you can. Too much brio results in broken walls and bent mudguards. If it makes you nervous, this twisting back and forth, feel free to leave it to someone else. It is not everyone's job and it is precisely with this shunting that small causes can have major consequences. [Translated online from the Dutch ]
Overtaking a tram
When overtaking a tram, also pay attention to the possibility that someone will jump in front of or from the tram. Giving a good signal and leaving as much road width as possible between the tram and your car is required. To catch up with a steam tram that hurls its plume over the road, and you it obstructs the view, it is advisable to wait until the wind chases away the steam. For the distance required to overtake a fast-moving vehicle such as a tram is too long, that the chance would not become too great that, in time, it would take to catch up with the plume of steam and drive through it. , in the meantime, a road obstruction would arise from the other side, which you would not have been able to see approaching. If you come across such a vehicle, moderate your speed so that you can stop vehicles suddenly emerging from that plume of steam. Give a strong signaland if necessary, stop the car on the right side of the road, until the tram has passed. Because then you have the most certainty, because then only a vehicle moving faster or as fast as the tram can cause danger. And this danger can be averted by giving a signal and keeping the right side of the road well. [Translated online from the Dutch ]
Parking
When you stop in a street, don't forget to reach out first, as a sign for the vehicle following you. Place your car neatly along the sidewalk, not crooked or in such a way that traffic is obstructed by it. You must intervene two vehicles or cars get into the car, then drive a little further, and then reverse between the cars. Do not drive straight over to the left side of the street, against the traffic, but drive to the right and then turn along the direction of the traffic, until you are in front of the house, where you want to be. [Translated online from the Dutch ]
Room to pass
It is also important to know, if you have to go through or along somewhere close with your car, what width you need. That can become such a certainty for you that it will look like virtuosity to the uninitiated. It's a matter of routine, of course, but it can be extremely practiced. It must be started with calculating the extreme points of the fenders. Later on, even this aid is often redundant. The best way to learn this is to place two blocks of wood on the ground, or to drive two posts, which are measured just the width of the wagon apart. Riding on that is the means of learning to estimate a narrow passage. Is the width wide enough to pass, but what When measured tight, keep flat on the side of the traffic obstruction, which is on your and steering wheel side. After all, here you can see exactly how close you can get without the risk of a collision. The other side will then be free of itself. [Translated online from the Dutch ]
Turn Signal
If you have to take a side road on the right, keep your arm stretched out in horizontal direction outside the car. [Translated online from the Dutch ]
Stop Signal
With an open torpedo, the stop signal can also be given by sticking the arm straight up. In any case, account must then be taken of the somewhat higher rear of the car, or of the possibility that the passengers behind are masking the movement of the arm. [Translated online from the Dutch ]
Swerving at intersections
Swerving at intersections
Cars and Trams
Firstly, in the bends. Great tram cars, especially on narrow track, there are the annoying habit, not far off the path of the rails to swing, including the cars of the Amsterdam-Haarlem-Zandvoort-line, the ESM Guard is in such a bend on one approaching tram, or does one want passing in the bend, a car runs the risk of being crushed or at least damaged between the rails and the curb, by the swinging front or rear upper part of the car. [Translated online from the Dutch ]
Beech C-45 (F-2)
Beech C-45 (F-2) Front Side Perspective Bottom Top
Beech AT-11
Beech AT-11 Front Side Perspective Bottom Top
Beech AT-10
Beech AT-10 Front Side Perspective Bottom Top
Beech AT-7
Beech AT-7 Front Side Perspective Bottom Top
Vultee L-1
Vultee L-1 Front Side Perspective Bottom Top
Vultee BT-15
Vultee BT-15 Front Side Perspective Bottom Top
Vultee BT-13
Vultee BT-13 Front Side Perspective Bottom Top
Vultee A-31
Vultee A-31 Front Side Perspective Bottom Top
Stearman PT-17 &18
Stearman PT-17 & 18 Front Side Perspective Bottom Top
Ryan PT-22
Ryan PT-22 Front Side Perspective Bottom Top
Republic P-47B
Republic P-47B Front Side Perspective Bottom Top
Republic P43-A
Republic P43-A Front Side Perspective Bottom Top
Republic P-35
Republic P-35 Front Side Perspective Bottom Top
Republic AT-12
Republic AT-12 Front Side Perspective Bottom Top
Northrop A-17
Northrop A-17 Front Side Perspective Bottom Top
North American P-51
North American P-51 Front Side Perspective Bottom Top
North American O-47A& B
North American O-47A & B Front Side Perspective Bottom Top
North American B-25 C & D
North American B-25 C & D Front Side Perspective Bottom Top
North American AT-6A
North American AT-6A Front Side Perspective Bottom Top
Martin B-26 B& C
Martin B-26 B& C Front Side Perspective Bottom Top
Martin B-10B
Martin B-10B Front Side Perspective Bottom Top
Martin A-30
Martin A-30 Front Side Perspective Bottom Top
Lockheed P-38D&E
Lockheed P-38D&E Front Side Perspective Bottom Top
Lockheed C60-A
Lockheed C60-A Front Side Perspective Bottom Top
Lockheed C-40A
Lockheed C-40A Front Side Perspective Bottom Top
Lockheed A-29&A
Lockheed A-29&A Front Side Perspective Bottom Top
Grumman OA-9
Grumman OA-9 Front Side Perspective Bottom Top
Fairchild PT-19
Fairchild PT-19 Front Side Perspective Bottom Top
Douglas XB-19
Douglas XB-19 Front Side Perspective Bottom Top
Douglas O-46A
Douglas O-46A Front Side Perspective Bottom Top
Douglas C-54A
Douglas C-54A Front Side Perspective Bottom Top
Douglas C-47
Douglas C-47 Front Side Perspective Bottom Top
Douglas C-39
Douglas C-39 Front Side Perspective Bottom Top
Douglas B-23
Douglas B-23 Front Side Perspective Bottom Top
Douglas B-18A
Douglas B-18A Front Side Perspective Bottom Top
Douglas B-18
Douglas B-18 Front Side Perspective Bottom Top
Douglas A-24
Douglas A-24 Front Side Perspective Bottom Top
Douglas A-20B & C
Douglas A-20B & C Front Side Perspective Bottom Top
Curtiss P-40E
Curtiss P-40E Front Side Perspective Bottom Top