B-26 Marauder, World War II Bomber Aircraft

General: Length: 58 ft. 3 in.Wingspan: 71 ft.Height: 21 ft. 6 in.Wing Area: 658 sq. ft.Empty Weight: 24,000 lbs.Loaded Weight: 37,000 lbs.Crew: 7 Performance: Power Plant: 2 Ãâ€" Pratt Whitney R-2800-43 radial engines, 1,900 hp eachCombat Radius: 1,150 milesMax Speed: 287 mphCeiling: 21,000 ft. Armament: Guns: 12 Ãâ€" .50 in. Browning machine gunsBombs: 4,000 lbs. Design Development In March 1939, the US Army Air Corps began seeking a new medium bomber. Issuing Circular Proposal 39-640, it required the new aircraft to have a payload of 2,000 lbs, while possessing a top speed of 350 mph and a range of 2,000 miles. Among those to respond was the Glenn L. Martin Company which submitted its Model 179 for consideration. Created by a design team led by Peyton Magruder, the Model 179 was a shoulder-winged monoplane possessing a circular fuselage and tricycle landing gear. The aircraft was powered by two Pratt Whitney R-2800 Double Wasp radial engines which were slung under the wings. In an effort to achieve the desired performance, the aircrafts wings were relatively small with a low aspect ratio. This resulted in a high wing loading of 53 lbs./sq. ft. in early variants. Capable of carrying 5,800 lbs. of bombs the Model 179 possessed two bomb bays in its fuselage. For defense, it was armed with twin .50 cal. machine guns mounted in a powered dorsal turret as well as single .30 cal. machine guns in the nose and tail. While initial designs for the Model 179 utilized a twin tail configuration, this was replaced with a single fin and rudder to improve visibility for the tail gunner. Presented to the USAAC on June 5, 1939, the Model 179 scored highest of all of the designs submitted. As a result, Martin was issued a contract for 201 aircraft under the designation B-26 Marauder on August 10. Since the aircraft was effectively ordered off the drawing board, there was no prototype. Following the implementation of President Franklin D. Roosevelts 50,000 aircraft initiative in 1940, the order was increased by 990 aircraft despite the fact that the B-26 had yet to fly. On November 25, the first B-26 flew with Martin test pilot William K. Ken Ebel at the controls. Accident Issues Due to the B-26s small wings and high loading, the aircraft had a relatively high landing speed of between 120 and 135 mph as well as a stall speed of around 120 mph. These characteristics made it challenging aircraft to fly for inexperienced pilots. Though there were only two fatal accidents in the aircrafts first year of use (1941), these increased dramatically as the US Army Air Forces expanded rapidly after the United States entry into World War II. As novice flight crews struggled to learn the aircraft, losses continued with 15 aircraft crashing at McDill Field in one 30-day period. Due to the losses, the B-26 quickly earned the nicknames Widowmaker, Martin Murderer, and B-Dash-Crash, and many flight crews actively worked to avoid being assigned to Marauder-equipped units. With B-26 accidents mounting, the aircraft was investigated by Senator Harry Trumans Senate Special Committee to Investigate the National Defense Program. Throughout the war, Martin worked to make the aircraft easier to fly, but the landing and stall speeds remained high and the aircraft required a higher standard of training than the B-25 Mitchell. Variants Through the course of the war, Martin continually worked to improve and modify the aircraft. These improvements included efforts to make the B-26 safer, as well as to improve its combat effectiveness. During the course of its production run, 5,288 B-26s were built. The most numerous were the B-26B-10 and B-26C. Essentially the same aircraft, these variants saw the aircrafts armament increased to 12 .50 cal. machine guns, a larger wingspan, improved armor, and modifications to improve handling. The bulk of the added machine guns were forward-facing to allow the aircraft to conduct strafing attacks. Operational History Despite its poor reputation with many pilots, experienced aircrews found the B-26 to be a highly effective aircraft that offered a superb degree of crew survivability. The B-26 first saw combat in 1942 when the 22nd Bombardment Group was deployed to Australia. They were followed by elements 38th Bombardment Group. Four aircraft from the 38th conducted torpedo attacks against the Japanese fleet during the early stages of the Battle of Midway. The B-26 continued to fly in the Pacific through 1943 until it was withdrawn in favor of standardizing to the B-25 in that theater in early 1944. It was over Europe that the B-26 made its mark. First seeing service in support of Operation Torch, B-26 units took heavy losses before switching from low-level to medium-altitude attacks. Flying with the Twelfth Air Force, the B-26 proved an effective weapon during the invasions of Sicily and Italy. To the north, the B-26 first arrived in Britain with the Eighth Air Force in 1943. Shortly thereafter, B-26 units were shifted to the Ninth Air Force. Flying medium-altitude raids with the proper escort, the aircraft was a highly accurate bomber. Attacking with precision, the B-26 struck a multitude of targets prior to and in support of the invasion of Normandy. As bases in France became available, B-26 units crossed the Channel and continued to strike at the Germans. The B-26 flew its last combat mission on May 1, 1945. Having overcome its early issues, the Ninth Air Forces B-26s posted the lowest loss rate in the European Theater of Operations at around 0.5%. Briefly retained after the war, the B-26 was retired from American service by 1947. During the course of the conflict, the B-26 was used by several Allied nations including Great Britain, South Africa, and France. Dubbed the Marauder Mk I in British service, the aircraft saw extensive use in the Mediterranean where it proved an adept torpedo bomber. Other missions included mine-laying, long-range reconnaissance, and anti-shipping strikes. Provided under Lend-Lease, these aircraft were scrapped after the war. In the wake of Operation Torch in 1942, several Free French squadrons were equipped with the aircraft and supported Allied forces in Italy and during the invasion of southern France. The French retired the aircraft in 1947.

Organizational Behavior Case Out With The Old Essay

ORGANIZATIONAL BEHAVIOR CASE: OUT WITH THE OLD, IN WITH THE NEW SUMMARY Anderson Corporation started in 1962 as a small consumer product’s company has been enjoying great success and profitability from the sales of its products that it has expanded rapidly. The success of the business has led its founders and management into neglecting the sales and marketing department through its motto and culture of â€Å"WE DON’T SELL OUR PRODUCTS. WE ALLOCATE THEM† and as a result the company has started to face a major setback through losses of millions of dollars in the last 3 years. Mary Hartmann who is the new head of the Marketing division has identified the following problems ï‚ § Lack of attention on the marketing side of the business ï‚ § Lack of an effective sales force ï‚ § Lack of improvement in product quality. ï‚ § Excess staff in the operations department. 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Alcatraz essay Free Essays

Imagine you are told exactly when you can eat or shower and when you have to go to bed and when you must wake up. Well many of the prisoners on Alcatraz Island were treated in such a way. If you were a prisoner on Alcatraz Island, every aspect of your life would be controlled by a higher authority. We will write a custom essay sample on Alcatraz essay or any similar topic only for you Order Now If you like to have a midnight snack every now and then, that luxury would be taken away. If you like to sit around and watch TV for hours, you can forget about that too. Alcatraz has a long history of transformation as to how it came to be known as the inescapable prison island. This reputation did not stop a handful of men to try and do the impossible and escape the island. Alcatraz, also known as â€Å"The Rock†, is a well-known yet mysterious place containing many forgotten memories and lost ghosts. Though no one really knows everything that went on within the concealed walls of the old prison, it still manages to trap the interests of millions of people who visit the national park each day on the small island in the San Francisco Bay. Not only has it trapped the interests of those millions of visitors, but it has also trapped mine as well. Discovered in 1775 by a Spanish explorer named Juan Miguel de Ayala, La Isla de los Alcatraces was nothing more than a small island inhabited by a group of pelicans from which the island acquired its name (Alcatraces means pelicans in Spanish). In 1847, the United States Government began view Alcatraz as more than just an island, but also an excellent location for a military fort; by 1853, a State of the Art military fortress was protecting the Western half of the United States against any foreign invasion. With the eruption of the Civil War, Alcatraz began accepting its first military prisoners in 1861. However, it wasn’t until the Spanish-American War in 1898 that the United States realized that the isolation of the island made it an excellent candidate for a prison. The prison population jumped from twenty-six to 450 during the war. That number sprang once more after the famous 1906 earthquake when prisoners were transferred from many San Francisco city jails to Alcatraz. With the island becoming more a prison and less a military fort, it was decided that a cell house would be necessary. After the construction of the cell house in 1912, â€Å"The Rock† was born. In the 1920’s many inmates were allowed to own small gardens of their own. Baseball fields were created and small teams were formed. It wasn’t until the 1930’s that Alcatraz went through dramatic changes constituting stricter rules than ever before thus ending the days of gardening and baseball games. In 1963, however, due to the high cost of running an island prison, Alcatraz was officially closed, never to be reopened as a prison. In 1969, a group of Native Americans claimed the island as their own but later ran into trouble with high costs just as the United States had. In 1971, their problems ended when they saw the island go up in flames, badly damaging the lighthouse and many homes that used to house the cell guards and their families. The remaining Indians left after this fire and once again, Alcatraz was abandoned. The U. S. government decided it would be best to make Alcatraz part of the newly opened Golden Gate Park. Today, the money it attracts from its visitors each year provides the operational costs for the island. Throughout all the changes Alcatraz has went, it has retained one thing up to this very day; its deteriorating walls never cease to capture the amazement and interest of onlookers like you and I. That small, haunted, and mysterious island on the coast of San Francisco that treasures so many memories will always be known as â€Å"The Rock. â€Å" How to cite Alcatraz essay, Essays