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Boeing 737 MAX improvements and keydates

boeing 737 renton leap 2019-03-12 11:39 UTC

The Boeing 737 MAX family brings the latest technology to the most popular jet aircraft of all time, the 737.

The new 737 generation was launched on August 30, 2011. It performed its first flight on January 29, 2016. The new series gained FAA certification on March 8, 2017. The first delivery was a MAX 8 on May 6, 2017 to Malindo Air.

The 737 MAX is based on earlier 737 designs. It is re-engined with more efficient CFM International LEAP-1B powerplants, aerodynamic improvements (including distinctive split-tip winglets), and airframe modifications.

The 737 MAX series is offered in four variants, typically offering 138 to 204 seats and a 3,300 to 3,850 nm range.

The engine

In August 2011, Boeing had to choose between 168 cm or 173 cm fan diameters necessitating few landing gear changes to maintain a 43 cm ground clearance beneath the new engines.

In 2011, the Leap-1B was initially 10–12% more efficient than the previous 156 cm CFM56-7B of the 737NG.

In November 2011, Boeing selected the larger fan diameter, necessitating a 150–200 mm longer nose landing gear.

 In May 2012, Boeing further enlarged the fan to 176 cm, paired with a smaller engine core within minor design changes before the mid-2013 final configuration.

 

Wingtip

The split tip wingtip device is designed to maximize lift while staying in the same ICAO Aerodrome Reference Code letter C gates as current 737s. The nacelle features chevrons for noise reduction like the 787.

 

First flight

The first flight of the 737 MAX took place at 9:48 am (17:48 GMT) on 29th Jan 2016 from Runway 34 at Renton Municipal Airport. At the controls were Capt Ed Wilson, chief pilot 737 Program, and Craig Bomben, vice president of flight testing. Bomben said that "other then deteriorating weather at Renton, we had no butterflies or jitters in our stomachs. We did get out of Renton in the nick of time."

 

Key Dates

  • 30 Aug 2011 - 737 MAX launched
  • 13 Dec 2011 - Southwest airlines becomes launch customer for 737 MAX-8 with an order for 200 aircraft
  • 12 Feb 2012 - 737 MAX Enters final phase of wind tunnel testing
  • 22 Feb 2012 - Lion Air becomes launch customer for 737 MAX-9 with an order for 201 aircraft
  • 02 May 2012 - Boeing Designs Advanced Technology Winglet for 737 MAX
  • 15 Nov 2012 - Boeing 737 MAX Achieves 'Firm Concept'
  • 15 May 2013 - Southwest orders 30 MAX-7's thereby launching the variant
  • 24 Jul 2013 - 737 MAX design finalised
  • 02 Apr 2014 - BBJ MAX Launched with first order
  • 14 Jul 2014 - Boeing announce 200 seat new minor model of 737 MAX-8 for Ryanair
  • 02 Jun 2015 - First 737 Max components start assembly in Renton
  • 08 Dec 2015 - 737 MAX rollout
  • 29 Jan 2016 - First flight
  • 4 Mar 2016 - First flight of second flight test aircraft
  • 14 Apr 2016 - First flight of third flight test aircraft
  • 21 Apr 2016 - 737 MAX-7X proposed
  • 10 May 2016 - First flight of fourth and final flight test aircraft
  • 30 May 2016 - 737 MAX-10 proposed
  • 07 Mar 2017 - Rollout of MAX-9
  • 09 Mar 2017 - FAA issues type certificate for 737 Max 8
  • 13 Apr 2017 - First flight of fhe first MAX-9
  • 22 May 2017 - MAX-8 makes its first commercial flight with Mandalo Air of Malaysia
  • 16 Feb 2018 - FAA issues type certificate for 737 Max 9
  • 16 Mar 2017 - First flight of fhe first MAX-7
  • 17 Oct 2018 - EASA issues type certificate for 737 Max 9

 

Boeing 737 MAX deliveries

 

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