Hairline cracks on the wings slow down the Boeing production

Image Boeing DreamlinerThe US-American aircraft producer Boeing, has found hairline cracks on the wings of the Boeing 787. The terrifying discovery has slowed down the production of the 42 Boeing 787 „Dreamliners“ and draws attention to the Jumbo´s possible bounderies.

Which size is reasonable for the material? This question is keeping the industry busy at the moment. The reason being that an announcement had been made, that hairline cracks had been found on the wings of the long-distance aircraft, Boeing type 787 „Dreamliner“. Machines, which have already been delivered are all clear as they are not affected.

Japenese suppliers are the cause

Boeing can also announce that the reason for the hairline cracks, on the more than 40 machines in the factory, has been successfully followed up on.  The Japenese suppliers, Mitsubishi Heavy, apparently used a different production method, which caused the material to react otherwise. It will take approximately three weeks to repair the affected aircrafts, as Boeing has announced.

From „Dreamliner“ to nightmare

The incident with the hairline cracks on the wings, has had no effect on the Boeing customers. The delivery of the machines has merely changed in time. Boeing has planned to deliver 110 machines of the affected type, this year. Boeing has to accept a further attack on it´s image, which is much more serious. The production of the „Dreamliner“ has already been delayed for over 3 years, because of glitches. Batteries with fire-hazard led to the grounding of the „Dreamliner“ for three months last year, among other reasons. The renowned „Wall street journal“ commented on the Boeing mishaps.  Writing that the development and product are too complicated. A new delivery record for Boeing is now in question.

The Boeing 787 „Dreamliner“ is still very popular

The Boeing 787 „Dreamliner“ belongs to the most successful aircrafts of the US manufacturer. Many airline companies value the model, as it can fly long distances with little fuel. Additionally, the main European competition Airbus, still hasn´t brought out an alternate model. The Airbus A350 should only come onto the market next year. Hairline cracks were also found here in 2012 and after a renovation, a new material fatigue was found.

The boundery of the large jumbo jets

The question at the moment, about the problems at Boeing and Airbus, is which bounderies the engineers have to deal with. After all, large-scale aircrafts have been exhausted since the 60´s and still, performance data and efficiency are placed in a harsh ratio.  The Boeing 747 came out in 1969, which was the first wide-bodied aircraft to fly.  It was definitely the largest passenger aircraft in the world. To make the gigantic aircrafts even more bigger, they also have to become lighter. Boeing also realised that the 787 had to be another 2,5 tons lighter in 2006. Strengthened titanium has been used in the last couple of years, as well as experimenting with synthetic material for the hull. Therefore, the Boeing 787 is the first aircraft, which has a large quantity of fiber-reinforced plastics, used in the building of the hull. The largest version of the Boeing 787-10, with upto 350 seats, will eventually have a start weight of approximately 245 tons. The wingspan is 60 metres by a length of 69 metres. The planned Boeing 777X is even bigger, with upto 400 seats and a wingspan of upto 76,5 metres.

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Written by: Head Mechanic | | 0 comments