Aviation

Do they fill airplane tires with nitrogen?

https://www.seattletimes.com/business/boeing-aerospace/tiny-crew-delivers-first-set-of-massive-777-landing-gear/

Do they fill airplane tires with nitrogen? : Aircraft tires are filled with nitrogen because nitrogen gas is mostly inert, meaning that it requires more energy to react with other substances. This is important because at elevated temperatures, oxygen can react with rubber. Oxidized rubber is weaker than non-oxidized rubber, and weaker tires are not preferred.

Oxygen diffuses through rubber much faster than nitrogen. This means that tires filled with 95% nitrogen (the standard percentage of nitrogen gas for inflation purposes) will maintain pressure longer. This leads to less maintenance, which lowers costs.

Tires operating with correct pressure are less prone to premature wear. Less wear means less tires (lower operating costs) and less heat generation during ground operations. Higher tire temperatures increase the risk of tire tread delamination or blowout. Apart from the safety concerns (which really aren’t that bad, blowouts happen quite frequently), tire fragments can cause damage to the aircraft structure, get sucked into the engine, and almost definitely cause undo stress on the landing gear due to uneven loading. Loss of a tire can even cause excess loading on the other tires of the landing gear (meaning just the nose gear, or one of the main gear) and require the other tires to be replaced regardless of condition.

Courtesy : Quora / Author : Rob DeCosta

Related Topics:aicraft tyres Aircraft Tyres

Aviation

Boeing, Antonov to Collaborate on Defense Projects

– MOU represents Boeing’s commitment to work with Ukrainian industry

– Includes exploring opportunities for collaborating on in-country support of Unmanned Aerial Systems

A Memorandum of Understanding was signed today by Boeing and Antonov Company to investigate potential collaboration on defense-related projects.

“We’re happy to keep collaborating with the Antonov Company to help Ukraine’s economic development and expansion,” stated Ted Colbert, CEO and president of Boeing Defence, Space, & Security.

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“This agreement demonstrates our ongoing efforts to find more opportunities to work with Ukrainian industry, which was underscored by our signing of the Ukrainian Defence Industry Compact earlier this year.”

The areas of potential collaboration identified in the agreement consist of training, logistical support and overhaul services for tactical Unmanned Aerial Systems utilized by the Ukrainian Armed Forces, which includes the ScanEagle. In addition, the companies will also explore opportunities for Antonov to provide engineering support to Boeing.

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“A strong, innovative, and efficient defense industry is key to sustainable economic development and national security, and we are extremely excited to collaborate with Boeing,” said Ievhen Gavrylov, CEO of Antonov Company.

This agreement brings a whole new level of opportunity to implement the latest and most effective solutions – in addition to the possibility of future projects with Boeing in the aerospace and defense industry.”