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How do flaps work?

I know what flaps are for and what they do, but how they do it seems counter intuitive to me.
An aircraft wing is a very streamlined thing. Take the Spitfire for example. How is it possible that inserting a large flat surface
into the airflow will decrease the stall speed? You would think the amount of drag would cause the aircraft to stall more rapidly?
What’s the secret?

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By: TonyT - 24th August 2013 at 10:29

No, I started to write it all out, then thought it would be easier to simply find a link that reads well than do it myself 🙂

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By: Deskpilot - 24th August 2013 at 02:48

Hampden98, how can I not reply since I was born at 90 Hampden Road, (Harrow Weald) 😀

In your search for knowledge, discount the Split Flap, at least initially, as it’s counter intuitive. Looks more like an air brake than a lift device.

TonyT, you from Australia? So happy to see our Recreational Aviation Australia tutorial suggested. A good resource for all budding pilots and or home designers.

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By: TonyT - 23rd August 2013 at 19:39

Probably better reading

http://flysafe.raa.asn.au/groundschool/umodule4.html

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By: TonyT - 23rd August 2013 at 19:23

Easier if you read

http://www.mademan.com/mm/how-airplane-flaps-work.html

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