The meaning of American helicopter fuselage logo

Please look at the detailed pictures I uploaded. The following is an introduction:

The change of American military aircraft logo

At the beginning of aviation, almost no one realized the importance of the aircraft emblem, and so did Americans. 1906 during the Spanish-American war in April and May, American military aircraft did not have any national symbols. start from scratch

Gradually, American Airlines began to use the Red Star logo on Curtis R-3 and R-4 aircraft. Red stars vary greatly in size, and their edges are slightly convex, more like the edges of leaves. It took only three months for such a sign to be abolished. American signalmen used to continue to use the sign, but the edge of the five-star was changed to a straight line, and sometimes the background was white and round. This sign has been used until l9 1? Seven years.

After the United States joined World War I, the aviation forces urgently needed to adopt appropriate national symbols. The 1st Air Squadron of new york National Guard submitted the design scheme, which was approved and passed in May 19 17. The new logo consists of a blue round bottom, a white five-pointed star and a red circle in the middle. The upper and lower surfaces of an airplane wing. Later, the red circle in the middle was slightly enlarged, but it still kept a distance of 1/24 times the diameter from the five internal contacts of the five-pointed star.

19 17 and 10, the us military began to use the standard 60-inch (152.4 cm) diameter sign, and the white pentagram was engraved in the red circle in the center. If the chord length of the wing is less than l52.4 cm, the symbol with the same diameter as the chord length of the wing is used. It was also during this period that the US military began to use the rudder vertical identification stripes composed of blue, white and red stripes with equal width.

The newly designed national logo has problems in France. The American Expeditionary Force in France found that their white five-pointed star logo was easily confused with the cross emblem with curved outline adopted by the German Air Force at that time-both of them had typical central radial characteristics, so it was suggested to adopt a logo similar to that of the French Air Force and the United Kingdom.

The concentric symbol of the Royal Air Force and Naval Air Force. The diameter of the new logo is equal to the chord length of the wing, and it is red, blue and white with the same width from the outside to the inside, which means that its use position is still the upper and lower surfaces of the wing.

On June 1 1 day, 19 18, 1, the new red, blue and white concentric circles logo was officially approved, and the United States navy and army aircraft began to adopt it uniformly. After March 5 of the same year, the logo was unified to be 60 inches in diameter (152.4 cm), and the rudder identification bar was changed to red before and white after. The five-pointed star at the bottom of the circle

1965438+On May 7, 2009/kloc-0, the US military aircraft logo was revised again, with a five-pointed star at the bottom of the circle, which was put into use in October, and the rudder logo column was changed to blue before and white after. On1926,65438+10,21,the size of the logo was also modified, and the diameter was changed to be equivalent to two thirds of the chord length of the wing, and the maximum diameter should not exceed 60 inches (152.4cm).

1927 65438+1October 24th, the rudder identification bar of American aircraft was further standardized and changed to red and white 13 bar, and the first third of the rudder width was painted blue. Later, people realized that the plane needed camouflage in air combat, so the bigger the logo, the more eye-catching it was. 1940, 10 year126 October, the U.S. military decided to cancel the aircraft rudder identification strip, and at the same time began to adopt the fuselage identification with the diameter not exceeding 48 inches (122 cm) except the wing identification. Originally, the upper and lower surfaces of the two wings were marked, but now it is modified to be used only on the left upper wing and the right lower wing. At that time, the U.S. military required the combat aircraft with camouflage coating to give priority to such a marking scheme.

After the outbreak of the Pacific War, Americans found that there was still something wrong with the national logo of their planes-this logo was easily mistaken for the red "Sun Pill" logo on Japanese planes by nervous American pilots in wartime. Therefore, the us military can only revise it. 1942 On May 28th, it was decided to cancel the red circular pattern in the center of the sign. In fact, long before this decision was made, some combat troops had already "acted first and then acted" on their own.

1942 1? On June+10, 5438, the United States and Britain launched the "Torch Operation" to attack Africa. Therefore, on June 65438+1 October1,the US military decided to add a circle of L-inch (2.54 cm) wide yellow border around the national symbol of the aircraft. Interestingly, some Royal Navy planes also added yellow edges around the logo at that time. The Royal Air Force has also widely used this symbol in North Africa, and in addition, it has added a vertical tail identification emblem, which makes some people speculate that the British may do this to show the unity of the Anglo-American allied forces.

Another bar

1June 29, 943, there was a major change in the logo of American aircraft? Two white rectangular stripes are added on both sides of the blue round bottom and the white five-pointed star, and the outline of the whole pattern is stroked in red. The length of the rectangular bar is equal to the radius of the blue round bottom, and the width is half of the length. The width of the outer red stroke is one eighth of the radius of the blue circle bottom. The use position of the logo remains unchanged.

Unfortunately, shortly after the new logo was put into use, the confusion of identification occurred again-this time it was a striking red stroke-and fidgety pilots in the Pacific battlefield often regarded friendly aircraft as Japanese devils. Americans must change again. 1August 943 14, the us military decided to change the red stroke to blue. Of course, the first thing to be changed is the Pacific theater, and the aircraft in the European theater will also be changed in a few months.

During the period of 1947, the US Air Force was formally established and became an independent arm, and new elements were added to the national symbol of its aircraft. This time, the US military added a red bar in the center of the white rectangular bar, the width of which is one sixth of the radius of the five-pointed star. Today, US military aircraft still use this basic logo style with only a few modifications to meet the current needs.

During the Vietnam War in the 1960s, the United States reduced the size of the national symbol of the aircraft for camouflage. Since 1980s, the painting of fighter planes has put more emphasis on low visibility. Not only has the size of the national emblem been reduced again, but even the color of the national emblem has been changed to camouflage contrast color. Today's logos are mostly black or dark gray, which is the so-called low visibility logo.