Why did Boeing initially skip the 717?

The 717 designation was skipped in Boeing's civilian line because a narrower military version of the 707 had already been assigned 717-100. After Boeing acquired McDonnell Douglas, the updated DC-9 variant known as the MD-95 was re-named 717–200.



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Boeing didn't consider the 717 designation for the plane we know as the 727, showcasing the latter as a new design. Then they used “717” after the McDonnell Douglas merger/takeover for the MD-95, as a default.

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Target-type reverse thrust systems are very common, and you can even find them in commercial Boeing 707 airliners. Another common type of reverse thrust system is clam shell.

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QantasLink's Boeing 717-200s will depart the fleet over the next two years as their successor A220-300s – seen here in a rendering – arrive. QantasLink is starting to retire its fleet of Boeing 717-200s, as it prepares to accept replacement Airbus A220-300s.

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In addition to domestic flights of medium range, the 727 was popular with international passenger airlines. The range of flights it could cover (and the additional safety added by the third engine) meant that the 727 proved efficient for short- to medium-range international flights in areas around the world.

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Efficiency: The Boeing 717 is a twin-engine, narrow-body jet that was originally developed by McDonnell Douglas as the MD-95 before Boeing acquired McDonnell Douglas. It is designed for short-haul flights and regional routes, offering efficiency and lower operating costs for airlines on shorter distances.

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Running since 1929, Hawaiian is among the oldest airlines in the world but, remarkably, it has never suffered a single fatal crash or hull loss.

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Most companies fail when customers do not buy their products. Douglas failed because customers did buy its products. Douglas fell with a successful innovative product, the DC-9, and an order backlog in excess of $3 billion and growing, enough work to keep its production lines humming for years.

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Here is a list of the safest airplanes you can consider for your travels.
  • Airbus A380. Airbus A380 photo by Vitaly V. ...
  • Embraer E-190. Embraer E190 photo by Valentin Hintikka from Finland, CC BY 2.0. ...
  • Boeing 767. Boeing 767 photo by Luis Argerich from Buenos Aires, Argentina, CC BY 2.0. ...
  • Airbus A319neo. ...
  • Bombardier CRJ-700.


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Because the fuselage was higher off the ground the DC-8 was able to be stretched to create the -61/-62/-63 versions. The fact that the wing also had less sweep helped as well, of course. The 707 was also stretched from its original length but it could not match the capacity of the Stretch 8s.

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A380s are designed to come to a complete stop using their brakes alone. Ultimately the decision was made to put reverse thrust on two engines to help minimize the risk of aquaplaning. But it was also decided that reverse thrust on all four of the A380 engines was definitely overkill.

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