Which mechanism explains the generation of lift in a soaring albatross with slotted primary feathers?

💡 Explanation

When an albatross uses slotted primary feathers, vortex division occurs because the slots create multiple wingtip vortices, decreasing the overall strength of any single vortex and reducing induced drag. Therefore, reduced induced drag results rather than altering chord length, increasing turbulence, or suppressing laminar flow without feather slots.

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