low n' slow
25th Nov 2001, 17:38
Hi all!
I'm writing an extended essay about wing construction. The essay is actually not the main part, it's mainly a comment on the modell wing I'm building. The wing is designed much like a fullsize wing incorporating a moveable slat, fowler flap and a spoiler. However, the last of the three has caused me some problems. Where do I put it? Someone told me that it should be placed where the centre of pressure acts from. With a flap in the up position this will be somewhere on the middle or where the wing is thickest. However, when the flap is fully extended, the centre of pressure will wander rearwards. Is this correct? Is it then feasable to place the spoiler on the slot lip of the wing (the part of the wing that extends over the fowler flap)?
A spoiler that is placed over the centre of the wing will however disrupt the flow over a greater distance of the wing and therby more lift. Which is correct? I guess it depends on the intended use of the spoiler.
What I want to know is if there is any sense at all in placing the spoiler on the rearmost part of the wing.
regards/lns
I'm writing an extended essay about wing construction. The essay is actually not the main part, it's mainly a comment on the modell wing I'm building. The wing is designed much like a fullsize wing incorporating a moveable slat, fowler flap and a spoiler. However, the last of the three has caused me some problems. Where do I put it? Someone told me that it should be placed where the centre of pressure acts from. With a flap in the up position this will be somewhere on the middle or where the wing is thickest. However, when the flap is fully extended, the centre of pressure will wander rearwards. Is this correct? Is it then feasable to place the spoiler on the slot lip of the wing (the part of the wing that extends over the fowler flap)?
A spoiler that is placed over the centre of the wing will however disrupt the flow over a greater distance of the wing and therby more lift. Which is correct? I guess it depends on the intended use of the spoiler.
What I want to know is if there is any sense at all in placing the spoiler on the rearmost part of the wing.
regards/lns