Nov 26, 2020 · Additionally, four vortilons were installed on the lower surface leading edge of the outboard wing panel. Their interaction with the wing sidewash at high angles of attack produce strong vortices that are convected to the upper surface, where they modify the pressure distribution and boundary layer development, postponing flow separation and ...

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Aug 29, 2019 · The wing fence is more or less what it is called- a fence. For swept wing aircraft, the local flow is not along the direction of flight, as there is a significant spanwise flow from the center towards the tips.

Oct 13, 2020 · Several aerodynamic solutions were introduced such as revising the leading edge stall strip and modifying the leading edge vortilons but they were insufficient to pass regulation. MCAS was therefore introduced to give an automatic nose down stabilizer input during elevated AoA when flaps are up.

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Jan 5, 2020 · Several aerodynamic solutions were introduced such as revising the leading edge stall strip and modifying the leading edge vortilons but they were insufficient to pass regulation. MCAS was therefore introduced to give an automatic nose down stabilizer input during elevated AoA when flaps are up.

Q&A for aircraft pilots, mechanics, and enthusiasts. They are called vortilons. They can induce a vortex to the upper surface of the wing at high angles of attack, which allows flying at higher angles of attack before stalling.

Jan 31, 2024 · When you see strakes and VGs and vortilons on wings and tails, they are usually band aids to fix a problem that came up unexpectedly during flight testing and avoided a major redesign. MCAS was a bandaid solution using software and some hardware integrated into the stab trim and stall protection system.

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Sep 27, 2019 · Bombardier did a lot of testing with various aerodynamic band-aids like vortex generators and vortilons and such, and they didn't help. The CRJs larger than the 200 have LE slats and are just about unstallable slats out, but they also have the same LE stall slats retracted and still require stick pushers.