Air Lease Corporation wants it a year sooner; its CEO John Pleuger stated "It would have been better to get the first airplane in March 2019, but I don't think that's possible".  Of these, Boeing anticipates an actual backlog of 3,333 when orders unlikely to proceed are recognized. , Boeing 737-9 flight tests were scheduled to run through 2017, with 30% of the -8 tests repeated; aircraft 1D001 was used for auto-land, avionics, flutter, and mostly stability-and-control trials, while 1D002 was used for environment control system testing.  The first MAX 8, 1A001, was used for aerodynamic trials: flutter testing, stability and control, and takeoff performance-data verification, before it was modified for an operator and delivered. Boeing plans to improve its range from 3,515 nmi (4,045 mi; 6,510 km) to 3,610 nmi (4,150 mi; 6,690 km) after 2021. All 189 people on board died.  The MAX 7 seems to have fewer than 100 orders among over 4,300 MAX total sales. suspended deliveries of Boeing Co. 737 Max aircraft it had on order for this year, the first Southeast Asian carrier to publicly take such a â¦ , The nacelle features chevrons for noise reduction like the 787. , In 2019, Moody's had estimated Boeing's operating margin to be US$12–15 million for each 737 Max 8 at its list price of $121.6 million, although the list price is usually discounted 50-55% in practice. , The 737 MAX 9 will replace the 737-900 and has a longer fuselage than the MAX 8.  The BBJ MAX 7 was unveiled in October 2016, with a 7,000 nmi (12,960 km) range and 10% lower operating costs than the original BBJ while being larger.  The 737 MAX program was Boeing's largest source of profit. Spirit supplies 69% of the 737 airframe, including the fuselage, thrust reverser, engine pylons, nacelles, and wing leading edges.   Studies for additional drag reduction were performed during 2011, including revised tail cone, natural laminar flow nacelle, and hybrid laminar flow vertical stabilizer.  United Airlines will be the largest 737 MAX 10 customer, converting 100 of their 161 orders for the MAX 9 into orders for the MAX 10.  In November 2019, Ryanair informed its pilots that, due to an unspecified design issue with the additional over-wing exit doors, it did not expect to receive any MAX 200s until late April or early May 2020, with "at best" 10 aircraft in service for the peak summer season. , In 2011, the Leap-1B was initially 10–12% more efficient than the previous 156 cm (61 in) CFM56-7B of the 737NG.  MAX supplier Spirit AeroSystems said it does not expect to return production rate to 52 per month until late 2022.  A new bleed air digital regulator will improve its reliability. To summarise; MCAS will trim the Stabilizer down for up to 9.26 seconds (2.5 deg nose down) and pause for 5 seconds and repeat if the conditions (high angle of attack, flaps up and autopilot disengaged) continue to be met.  The MAX development cost could have been well over the US$2 bn internal target and closer to US$4 bn. As we can see, the range of the plane goes down the bigger it is (until you get to the last extended range model, the 737-900ER).  As the competing A321neo attracts more orders, the sale value of a 737-9 is the same as a 2018 737-8 at $53 million. , A new spar-assembly line with robotic drilling machines should increase throughput by 33%.  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