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I am curious about delta wings. I read some articles and found the term "slender delta". Please help me to understand this term.

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A slender delta wing is a delta with low aspect ratio.

The use I have seen is in the study of vortex lift, which is present at high angles of attack.

What is vortex lift? enter image description here

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Slender wing having a very high sweep angle which typically Λ>65°. The non-slender wing is having low to moderately swept (35°–55°) wing planforms.

enter image description here

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