When to use slats?

[Dave317]

When is it best to use the leading edge slats manually? Do they help in a dogfight to turn quicker and should you use them for take of and landing?

[mvsgas]

In a emergency situation to get the aircraft back home. It would not benefit anything else AFAIK.

[Azrayen]

Extend them manually in case of engine problems, during approach & landing, to increase safety margins vs critical AoA.

Retract them manually in case of auto-logic failure (for whatever reason) that would leave them extended when they shouldn't.

 

That's all.

[Corsair]

Slats add instability in normal flight, and they shouldn't be touched manually for the reasons quoted above :)

[Dave317]

Thanks guys.

[jaguara5]

It would be cool if we could have in the manual an emergency checklist, with items like the above.

[jojo]

These SLATS reduce drag and increase instability.

 

So generally speaking:

- degraded FBW: retract SLATS (BECS) and stay below 15 degree AoA

- damaged engine and reduced thrust: extend SLATS during landing to reduce the drag.

 

During normal operation let SLATS in AUTO mode, it's automatically retracted with gear down for landing.

[Rlaxoxo]

These SLATS reduce drag and increase instability.

 

So generally speaking:

- degraded FBW: retract SLATS (BECS) and stay below 15 degree AoA

- damaged engine and reduced thrust: extend SLATS during landing to reduce the drag.

 

During normal operation let SLATS in AUTO mode, it's automatically retracted with gear down for landing.

 

You mean increase drag?

[jojo]

No, at high AoA these SLATS decrease drag.

These is why it's retracted when you extend gear for landing and you extend it in case of damaged engine.