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Forum: Tech Log

1st Nov 2009, 22:30

Replies: 47

strongest wing tip vortices when slow, clean and heavy. BUT WHY?

Views: 60,549

Posted By Dolphin51

Reply to Brian Abraham re swept-wing aircraft

G’day Brian. You asked why a swept-wing aircraft stalls at a higher angle of attack than one with a straight wing. I think the best answer is that an aircraft with a lower aspect ratio appears to...

Forum: Tech Log

1st Nov 2009, 12:55

Replies: 47

strongest wing tip vortices when slow, clean and heavy. BUT WHY?

Views: 60,549

Posted By Dolphin51

Reply to Brian Abraham

I agree that tackling a practical problem with a mathematical approach can be challenging. The following might clarify things.
We want to determine the effect on aircraft lift coefficient when...

Forum: Tech Log

31st Oct 2009, 10:38

Replies: 47

strongest wing tip vortices when slow, clean and heavy. BUT WHY?

Views: 60,549

Posted By Dolphin51

Reply to Brian Abraham

G'day Brian! I'm sure you are aware that two different lift coefficients are defined. There is the aircraft lift coefficient C_L (capital C) based on the lift on the aircraft and the wing planform...

Forum: Tech Log

30th Oct 2009, 22:18

Replies: 47

strongest wing tip vortices when slow, clean and heavy. BUT WHY?

Views: 60,549

Posted By Dolphin51

Reply to Amen Brother

Thanks for your prompt and thoughtful reply. Changing flap setting changes stalling speed because it changes the MAXIMUM lift coefficient. However, with plain and split flaps, changing flap setting...

Forum: Tech Log

29th Oct 2009, 11:38

Replies: 47

strongest wing tip vortices when slow, clean and heavy. BUT WHY?

Views: 60,549

Posted By Dolphin51

Partial-span flaps increase strength of trailing vortices

This thread was drawn to my attention a few days ago. It is now eleven months since the thread was active, and maybe no-one is watching, but here is my contribution. I am an aeronautical engineer...

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