Dont understand landing.

[kontiuka]

On the subject of F-15c landings, does the chute still work

On landing i've repeatedly pressed P from touchdown till taxi speed and not once have I gotten it to deploy.

F-15 doesn't have a chute despite the key assignment.

[AceRevo]

And once you touchdown, retract speedbrake for better braking performance.

[GGTharos]

Extend the speedbrake on touch-down. Keep it in on approach (fan it if you like, but keep it in just before touchdown).

 

The speedbrake will increase your descent rate.

[escaner]

The F-15 does not have a short landing run. Instead of chute, they do aerobraking. On touchdown, keep your nose 10-12° up until down to 80-90 knots, then lower your nose and apply wheel brakes. That would be the real life procedure

[Steel Jaw]

I have trouble seeing the runway from the outer maker inwards due to the high AOA...anyone else?

[GGTharos]

13 degrees. Anything less is not effective aerobraking. More than 14 degrees, you risk a tail-strike. That would be the real life procedure.

 

The F-15 does not have a short landing run. Instead of chute, they do aerobraking. On touchdown, keep your nose 10-12° up until down to 80-90 knots, then lower your nose and apply wheel brakes. That would be the real life procedure

[JetBLASTER]

I have the same problem if I don't use Trackir. With Trackir no problem. I can see right in front the nose.

[escaner]

I have trouble seeing the runway from the outer maker inwards due to the high AOA...anyone else?

 

Lower flaps, increase airspeed (both reduce AOA) or perform a steeper approach.

 

13 degrees. Anything less is not effective aerobraking. More than 14 degrees, you risk a tail-strike. That would be the real life procedure.

 

Yes, that is what I already said in the first page. Not flying it that much lately and already forgetting the numbers.

[GGTharos]

No ... what are your approach parameters? You should be at 21 CPU AoA, 2.5-3 deg glide-slope.

 

If you can't see the runway under those conditions, 'raise' your seat, you know, TIR :)

 

I have trouble seeing the runway from the outer maker inwards due to the high AOA...anyone else?

[Steel Jaw]

Right I will check the numbers and maybe raise the TIR seat, cheers GG.

[AceRevo]

Extend the speedbrake on touch-down. Keep it in on approach (fan it if you like, but keep it in just before touchdown).

 

The speedbrake will increase your descent rate.

 

Just to be clear (must be my english, which is not my native language and google translate does no good);

 

On your way in when you glide at 21 CPU AoA - you do not want to use your speedbrake? Descent rate will increase with airbrake, meaning you will fall faster and you may not reach the airfield? my english..

 

And on touch-down (which is the point where your MLG (main landing gear) touches the ground, right??) you want to extend airbrake? I thought that you didnt want to use airbrake at this point to improve the effect of your MLG's brakes?

 

What do you mean, keep it in on approach?

 

 

Again, sorry for this lol but sometimes a man just needs to get it all in with a teaspoon :) dat translate..

[GGTharos]

On your way in when you glide at 21 CPU AoA - you do not want to use your speedbrake? Descent rate will increase with airbrake, meaning you will fall faster and you may not reach the airfield? my english.

 

In an extreme case, yes. But generally it will cause you to oscillate as you try to fix the aimpoint.

If you want to see it in action, do this: Fly at any altitude, say 5000', with 250kts. Fly straight and level, and set the throttle to maintain this peed. Press 'A' for altitude hold.

Observe the plane flying nice and straight.

Now pop the airbrake! Watch your flight path vector ... :)

 

And on touch-down (which is the point where your MLG (main landing gear) touches the ground, right??) you want to extend airbrake? I thought that you didnt want to use airbrake at this point to improve the effect of your MLG's brakes?

 

That depends on the landing. If you're aerobraking (normal landing), you won't be using the brakes on the MLG until you have slowed down enough to put the NG down. You can use aero-braking and the speedbrake together. When you slow down to 90kts, speedbrake is probably not very effective any more.

 

What do you mean, keep it in on approach?

 

Again, sorry for this lol but sometimes a man just needs to get it all in with a teaspoon :) dat translate..

 

You can use the airbrake during approach - best is to 'fan' it, ie. open-close, just to control a bit of speed. If you need to brake to slow to approach speed and you're near the runway, you should probably go around instead.

 

Just don't use it during touch-down, since it increases your descent rate.

[Flamin_Squirrel]

Speed brake should only increase sink rate if you don't compensate with power, and let your speed reduce, though?

[GGTharos]

Speedbrake increases sink rate just by aerodynamic effects. The reduction in airspeed is a double whammie.

[Exorcet]

Speed brake should only increase sink rate if you don't compensate with power, and let your speed reduce, though?

The same high pressure pushing back on the brake causing drag is also pushing down on the wings killing lift. This is why it's also a good idea to deploy it after touchdown, it will make the wheel brakes more effective and harder to lock up.