Aces High Bulletin Board
Help and Support Forums => Aces High Bug Reports => Topic started by: Golfer on September 20, 2008, 06:18:57 PM
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They start in the retracted position until the aircraft starts to move. They then deploy only to retract again when the proper AOA is reached.
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This happens with the 109 too. Never tried it with the Lavochkins.
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Does it with all planes with slats. Here is something on the 109 slats.
Over the years, all manner of explanations have been offered about the slats on the Messerschmitt 109 family, some of them fairly accurate and some of them downright ludicrous. This article should help to clarify the operation of the slats, their mounting, and their operation.
First, let's discuss what they are NOT:
- They are not motor-operated.
- The port and starboard slats are not connected to each other.
- They are not fixed in one position.
- When extended from the wing surface, they are not "dropped"- they are extended.
This slat design was first proposed by Sir Frederick Handley Page around 1919 as a way to maintain airfoil efficiency at high angles of attack. As the airfoil pivots at a greater angle from the direction of airflow, the point at which the flow detaches from the upper wing surface moves further and further forward. Eventually, if this condition continues, the airflow "unsticks" completely from the upper surface, and the wing stalls. In order to delay this action, the slat on the 109 extends outwards under aerodynamic pressure, channeling airflow back up and over the wing upper surface, thereby maintaining airfoil effectiveness.
A common question asked regarding the 109 is "Should the slats be in or out when the aircraft is parked?" The answer is "yes". The slats are free-moving devices, and are commonly seen extended in many wartime and contemporary photos; however, if manually pushed back into the wing, the slats would remain there until the aircraft moved, at which time they would extend of their own volition. This action was confirmed by Günther Rall when questioned by Lair visitor Erik Whipple some time back; according to Gen. Rall, it was common practice at their field to push the slats in once the aircraft were secured so that no dust or debris would accumulate in the traveling tracks. Evidently at least one new pilot was lost due to faulty operation of the slats when taking off, which led to this practice. However, as with almost everything else 109-related, if the position of the slats is of serious concern to you when building a static model, consult your references to determine the best configuration.
The Me (Bf ) 109 "E" through "F" used the swing arm parallelogram mechanism to agitate the slats. From the "G" onwards the Me 109's used the roller-track mechanism to guide the slats in and out. It all follows a patent bought by Messerschmitt from DeHavilland just prior to the war. The slats are driven out by means of low air-pressure if the AOA gets higher ( slow flight ) and retract by means of air-pressure when accelerating...
The most interesting thing about this is that there are clearly several significant differences between the Friedrich and Gustav wings, despite their outwardly identical appearance.
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On the ground with no airflow they should be down. When you start they start "up" which shouldn't be the case. They used to start down properly but with the new update they start up. There is no sound associated with them cycling so it leads me to believe it's an artwork thing and while they're modeled correctly they're not displayed as such.
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The slats are up till u get enough airflow going over them. Then due to the airflow, they are forced down till enough speed is established to force them back into the retracted position. :P
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While that may be a good explanation of what's happening in the game, if we're after accurate modeling of their behavior, Golfer is correct. They should be extended while the plane is at rest. :)
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I agree with Soulyss.
I did notice that the 262's slats do operate individually on each side. I was in a hard yaw at slower speed last night and my left side popped out and the right didn't.
Very cool, HTC. :aok
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Fixed in 2.13.1 :aok