As the title already say, how does the antenna on the Boeing 737 Max fuselage not disrupt the airflow?

enter image description here
(Boeing) 737 MAX antenna.

  • $\begingroup$ Edited to make your question more understandable. Please read How do I ask a good question? for some more details on how to post a good question on this site. $\endgroup$
    – Jimy
    Oct 2, 2017 at 18:26
  • $\begingroup$ Which antenna? Are you talking about the satellite antenna that is added (not shown in that picture)? $\endgroup$
    – Ron Beyer
    Oct 2, 2017 at 18:30
  • 1
    $\begingroup$ Welcome to aviation.SE! Somewhat related. A picture would be really useful here: aircraft have lots of different antennae and it isn't clear if you mean one specific antenna, or all of them together? $\endgroup$
    – Pondlife
    Oct 2, 2017 at 18:30

1 Answer 1


Anything new attached to the outside of the airplane will change the airflow in someway; that is unavoidable.

The only question is if it will disrupt the airflow in a way that has a significant negative impact on the plane.

You'll recognize that the antenna is installed very close to the CG, so the new air resistance has virtually no pitching moment.

It is far from any control surface, so those all work the same.

The increased air resistance affects fuel economy a very tiny amount, but paying customers have enough preference for inflight wifi that its worth it.

  • $\begingroup$ Do you think it could be a safety issue? $\endgroup$
    – user25868
    Oct 3, 2017 at 19:53
  • $\begingroup$ What kind of safety issue? $\endgroup$
    – abelenky
    Oct 3, 2017 at 20:16

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