AeroFlot Flight 8641 Crash Analysis

AeroFlot Flight 8641 Crash Analysis Most people think of planes as a fast and efficient way to get to a place farther away than what a car can take them. But, what most people dont know is that there are engineering design problems. One of which happened to Aeroflot Flight 8641. In June 28, 1981, AeroFlot Flight 8641 encountered an engineering design problem. Unfortunately, it ended horribly and the crash killed everyone on board which was a total of 132 people. The plane crashed near Mozyr, Belarus. This opened the peoples eyes about the Yak-42s. All Yak-42s were suspended from service until the design defect was solved and tested. Yakovlev is a plane company out of Russia.In 1965, Yakovlev built the Yak-40. Then in the early 1970s the Yak-42 was designed and built. The designers are working on a new plane design called the Yak-44. The Yak-42 is a medium size jet airliner. AeroFlot Flight 8641 was the first crash with this plane because of the design failure. This crash was the first and deadliest crash including the Yak-42. No one knew about the design defect until the investigation on why the plane lost control and crashed.[1] During the investigation, it was found that the whole tail of the plane detached due to metal fatigue on the jackscrew. [3]The metal on the jackscrew was melted, which made it deform and cause a weak spot in the tail. The pressure of the air and speed of the plane started cracking and breaking the tail off, which cause the plane to dive down to the ground and crashed killing everyone on board. The designers were a group from the company, Yakovlev. They were blamed for the crash because they didnt take precautions on metal fatigue issue in the prototypes[4]. After the crash, the designers had to fix the problem before sending any more planes up into the air. So, the designers had to find a way to stop metal fatigue. New precautions were put into place on how to keep the jack screw from melting.[6] The designers needed to know parts of structural engineering, mechanical engineering, and material science.[7] They needed to know how to keep the stress below the fatigue level and also, needed to know how to make the plane efficient when one part fails the whole plan does not fail.[8] They also had a part life[9]. This is when a part got used to a certain amount of time it got replaced with a new one. And lastly, the plane was checked for cracks and when a crack gets to a certain length the part is replaced. The jackscrew is made out of cast iron. This cast irons melting point is 2060-2200 degrees fahrenheit or 1127-1204 degrees celsius. The solution of the new design is how to divert the heat from the jackscrew or change the material of the jackscrew or the materials around it to keep the jackscrew cooled of[10]f. The design of the Yakovlev Yak-42 was the cause of the crash. The designers had to make a new design to solve the problem that happened to AeroFlot Flight 8641. There were also new precautions put into place to prevent crashes or issues with the plane. New part lifes were also introduced to keep the planes running for longer and to keep old parts off the plane to cut off the chance of it failing and causing a crash. https://en.wikipedia.org/wiki/Jackscrew https://en.wikipedia.org/wiki/Fatigue_(material) https://www.revolvy.com/main/index.php?s=Aeroflot%20Flight%208641 https://en.wikipedia.org/wiki/Aeroflot_Flight_8641 http://www.theinfolist.com/php/SummaryGet.php?FindGo=Yakovlev%20Yak-42 http://www.airvectors.net/avyak40.html Aeroflot flight 8641 Jackscrew https://en.wikipedia.org/wiki/Jackscrew Metal fatigue https://en.wikipedia.org/wiki/Fatigue_(material) https://www.revolvy.com/main/index.php?s=Aeroflot%20Flight%208641 Jackscrew mechanism in the aircrafts tail The aircraft lost control and dove into the ground https://en.wikipedia.org/wiki/Aeroflot_Flight_8641 Killed all 132 people on board When June 28, 1982 Where Near Mozyr, Belarus How Jackscrew mechanism in the aircrafts tail What happened after All yak-42s were shut down until the problem as fixed Yakovlev Yak-42 The tailplane detached from the plane http://www.theinfolist.com/php/SummaryGet.php?FindGo=Yakovlev%20Yak-42 Rubric rating submitted on: 12/21/2016, 11:56:36 AM by [emailprotected] 10 5 0 Title Page    Your score: 5 x Present not done Table of Contents    Your score: 5 x Present not done Abstract    Your score: 5 Present not done Introduction    Your score: 5 x Background    Your score: 5 Present not done Investigation    Your score: 6 Present not done Findings    Your score: 7 Present not done Impact    Your score: 0 Present not done Conclusion    Your score: 5 x not done References    Your score: 10 References included no references Notes    Your score: 10 Notes recorded no notes 6 Content Pages    Your score: 3 filled 6 pages 3 content pages no contents pages Comments: Rubric rating submitted on: 12/21/2016, 12:14:40 PM by [emailprotected] 10 5 0 Title Page    Your score: 5 x Present not done Table of Contents    Your score: 5 x Present not done Abstract    Your score: 5 Present not done Introduction    Your score: 5 x Background    Your score: 5 Present not done Investigation    Your score: 7 Present not done Findings    Your score: 8 Present not done Impact    Your score: 5 Present not done Conclusion    Your score: 5 x not done References    Your score: 10 References included no references Notes    Your score: 10 Notes recorded no notes 6 Content Pages    Your score: 3 filled 6 pages 3 content pages no contents pages Comments: [1]how long did they make these planes? were there any other problems before this incident? where were they made? Did the company make any other planes? [2]describe HOW the accident was investigated how did they figure that out? [3]What is a jack screw and what does it do? Why does a plane need it? [4]Were there problems during testing, that were ignored? what is metal fatigue? what happens to metal as it is failing? [5]Findings? Who was at fault, what caused the accident, what future precautions were recommended? [6]is melting the same as metal fatigue? [7]why do they need to know these things and what do they need to know about these things? [8]Were they able to do this? is that the way they are design currently that if something fails, like a tail breaking, that they can still fly/land the plane? [9]is this a precaution or a new practice? [10]which one of these did they do? did they try both and decide on one? what are the advantages and disadvantages of one method or the other? [11]missing a section?

The Joys of Being Pregnant

On August 9, 2010, life as I knew it changed forever. It was a normal summer day at home, much like any other Monday that summer. Everything on the outside appeared to be the same as usual, but on the inside, I knew there was a change. I was two weeks pregnant and I wouldn’t know it until about 5:30 that night. It was a very emotional discovery, finding that I would become a mother in a little less than nine short months. Not only did that discovery change my life, but it also changed the lives of many others who love and care about me. My mother, 33, would become a young grandmother and my step dad, 26, would become an even younger grandfather. My boyfriend of three years would have to throw away his childhood and become a man for his son or daughter. I was scared to death that the shock and severity of my situation would destroy any chance of gaining the support of them, but all three, along with the rest of my family, kept loving me and began to love the new life growing inside of me. I am now eleven weeks pregnant and I have had the privilege of actually seeing my baby via ultrasound. He or she was almost a centimeter long on the first of September and resembled a peanut or a lima bean. Seeing the baby’s heartbeat flashing like a tiny strobe light hit me like a ton of bricks. The â€Å"embryo† that I had heard of in books and diagrams was now a child to me; a living, growing baby who was developing arms and legs and eyes. A baby that may grow up to have my dimples or my boyfriend’s blue eyes. He or she would call me â€Å"mommy† and love me unconditionally. And I would love him or her right back, as strong and as hard as I could. I keep the pictures from the sonogram on the refrigerator, but my favorite one is in a little white frame in my bedroom. I look at it often and I wonder how much the baby has changed since that picture was taken. My next appointment is the 29th, and I am so anxious to be able to see how much this life inside of me has grown and be able to take home more pictures that I will treasure as much as the first one.

`` O Brother Where Art But `` Is A 2000 Comedy By Joel Coen

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Harrison Bergeron - 806 Words

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