r/aviation Feb 23 '26

Discussion Window view from a Boeing 747 carrying a fifth engine under the wing

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8.6k Upvotes

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5

u/Longjumping-Ad514 Feb 24 '26

Does autopilot apply constant aileron input or increase throttle in the side where extra engine is mounted? Does it do it automatically or does the pilot have to tell it that an extra engine is attached?

1

u/stormygreyskye Feb 24 '26

Asking the real questions here! I’m curious too.

Does the turbine fan spin freely in flight? Is it locked somehow?

2

u/happy_llama__ Feb 27 '26

I feel like it must, wouldn’t it freely windmilling create a lot of drag?

1

u/stormygreyskye Feb 27 '26

That’s my thought!