Timeline for Why does the twin otter have wing fences?
Current License: CC BY-SA 4.0
6 events
| when toggle format | what | by | license | comment | |
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| Jan 1 at 11:13 | comment | added | Agent_L | @Wyatt spanwise flow is minor at full speed and minimal angle of attack, in "normal" airflow. When a part of a wing ceases generating underpressure (stall) while the other part continues, it becomes major enough. Also, during normal operation overwing spanwise flow is towards center, and when the center stalls, it reverses. | |
| Dec 27, 2023 at 16:20 | comment | added | Camille Goudeseune | Here is a real-life photo, although a poor one, plus an unauthoritative answer. Briefly: spanwise flow does happen on the Otter; the fences avoid stall where the ailerons are, esp. when ailerons droop along with flaps. That preserves roll authority on approach and flare. | |
| Dec 27, 2023 at 4:21 | history | edited | Wyatt | CC BY-SA 4.0 |
deleted 70 characters in body
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| Dec 27, 2023 at 4:19 | comment | added | Wyatt | @sophit the spanwise flow I was talking about there is a pretty minor effect, read the second comment on this answer to see what I mean. Since that effect is pretty minor, I didn’t see a purpose in wing fences. I’m still going to edit this question, because you’re right about me contradicting myself. | |
| Dec 27, 2023 at 3:49 | comment | added | sophit | Why there's shouldn't be any spanwise flow on a unswept wing? You have even asked about it in another question of yours!?! | |
| Dec 26, 2023 at 22:49 | history | asked | Wyatt | CC BY-SA 4.0 |