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民航资源网2017年4月22日消息:根据民航局空中交通网的公告,4月23日08:30至11:00,C919飞机在上海浦东机场进行高滑抬前轮试验,受此影响,浦东机场通行能力预计下降70%左右。
目前C919大型客机首架机已经通过了首飞放飞评审,并于近日完成了第3次高速滑行测试。在明天的高滑抬前轮实验后,C919很快将会迎来首飞。
The Commercial Aircraft Corporation of China (COMAC) is using the new LEAP-1C Integrated Propulsion System engine (a high-bypass turbofan engine, successor to the best-selling CFM56) from CFM International, a 50/50 joint company between the France's Safran Aircraft Engines (formerly known as Snecma) and the USA's GE Aviation (a division of General Electric). This engine is a superior rival to the Pratt & Whitney PW1000G in the single-aisle jetliner market. See 'Safran in China'Looks just like Airbus plane
Are the engines also made in China ?
Looks very sharp from inside
The Commercial Aircraft Corporation of China (COMAC) is using the new LEAP-1C Integrated Propulsion System engine (a high-bypass turbofan engine, successor to the best-selling CFM56) from CFM International, a 50/50 joint company between the France's Safran Aircraft Engines (formerly known as Snecma) and the USA's GE Aviation (a division of General Electric). This engine is a superior rival to the Pratt & Whitney PW1000G in the single-aisle jetliner market. See 'Safran in China'
I'm not sure about other factors, but wouldn't the PW1000gs higher bypass ratio of 12.5 to 1 make it more fuel efficient than the LEAP-1C with an 11 to 1 ratio? And the PW1133g and 1135g also have more thrust than the LEAP-1C (max 33,000 lbs and 35,000 lbs compared to LEAP-1Cs 30,000 lb max).
I'm not an aircraft engineer and don't fully understand how to evaluate a jet engine, but I would argue these are two extremely important parameters.
Still the LEAP-1C is a great engine. Analysis I have read seems to indicate though that the C919 and C929 will struggle to compete with comparable Airbus and Boeing models for cost efficiency. Assuming this is true, other than the engines what other factors might affect the comparative performance of the C919?
I'm not sure about other factors, but wouldn't the PW1000gs higher bypass ratio of 12.5 to 1 make it more fuel efficient than the LEAP-1C with an 11 to 1 ratio? And the PW1133g and 1135g also have more thrust than the LEAP-1C (max 33,000 lbs and 35,000 lbs compared to LEAP-1Cs 30,000 lb max).
I'm not an aircraft engineer and don't fully understand how to evaluate a jet engine, but I would argue these are two extremely important parameters.
Still the LEAP-1C is a great engine. Analysis I have read seems to indicate though that the C919 and C929 will struggle to compete with comparable Airbus and Boeing models for cost efficiency. Assuming this is true, other than the engines what other factors might affect the comparative performance of the C919?