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F-15 Takeoff & landing


pauldy
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A lot has changed since Flaming Cliffs 1.12b.. albeit the old procedures now longer apply specially with the Eagle's AFM.. going straight to my point

 

 

-Is there a way to compute for the F-15's Vr/Rotation speed based on it's gross weight?

 

-What are the ballpark AoA values needed when on final approach?

 

 

Even in the days of Flaming Cliffs 1, I've always landed with 3-4 degree flight paths and constant AoA value in mind instead of airspeed.. Sometimes, I didn't even knew what my approach speed was after landing ^^;

 

 

I'm asking this since I found the DCS F-15 manual via Steam and so far.. no clear answers regarding my queries... thanks ^

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How about the Take off Rotation?

 

Somehow I find myself Rotating with an uncontrollable pitch rate when I rotate at around 160 knots (Loaded with 6 AIM-120s 2 AIM9s & a Centerline Fuel Tank)... or perhaps this is a bug? or my joystick is crap?... etc...

 

Also, Is the Take Off Trim already working as advertised? or it's still a WIP function?

 

I've seen videos where people rotate at 200 something knots...

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Also, Is the Take Off Trim already working as advertised? or it's still a WIP function?

 

I think it was mentioned somewhere that takeoff trim is currently bugged - that's probably what's causing your pitch problems. I don't recall reading any patch notes mentioning fix of this issue.

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How about the Take off Rotation?

 

You can find this information in the -1. I don't have it handy right now.

 

Somehow I find myself Rotating with an uncontrollable pitch rate when I rotate at around 160 knots (Loaded with 6 AIM-120s 2 AIM9s & a Centerline Fuel Tank)... or perhaps this is a bug? or my joystick is crap?... etc...
At that weight, you can probably rotate at 130 to 150. I don't recall the exact number, but you should have enough control to pull the nose up to about 10 deg and hold it there.

 

You need consistent technique for this. It can be a pull stick pull or a half-stick pull, but I don't recall which you use and for what exactly.

 

Also, Is the Take Off Trim already working as advertised? or it's still a WIP function?
TO trim is not putting the surfaces where they should go, the deflection is too high. Use 'center trim' instead, they will set the elevators to the correct takeoff deflection.

 

I've seen videos where people rotate at 200 something knots...
You can do this and it's done in demos too, but it uses up the tyres quickly AFAIK and is not a common practice. It probably increases the chances of fodding the engine. Also useable for a no-flap TO.

 

 

For landing: Hold a steady 21uAoA. 23 uAoA is where aerobraking starts to get really effective ... so try not to be there unless you're using a short-landing technique, then you land 23uAoA and you're aerobraking right on touchdown. I would advise against making this your standard landing procedure :)

 

 

Also:

http://forums.eagle.ru/showthread.php?t=123658


Edited by GGTharos
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At that weight, you can probably rotate at 130 to 150. I don't recall the exact number, but you should have enough control to pull the nose up to about 10 deg and hold it there.

I think I recall the old FC2 manual setting a blanket speed at 120 and holding 10 degrees until you lift off. That still works, and it's basically what I do with 1-2 tanks. Haven't flown with 3 yet.

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Back in the FC 1.12b days when the F-15 had a Radar Altimeter, I would flare at approximately 30+ feet... regardless if I'm over the threshold.. a bit over the grass before runway end or deep inside the runway..

 

Now is seems a bit harder.. but anyways the threshold is where i start the flare roundout.. but after watching those videos..

 

Now I'm kind of confused.. Flaring is done over the grass, before the end of the runway?

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Now you have to do it like a real pilot :)

 

You flare when you see any kind of ground-rush or the runway fills your HuD.

 

If you're not on glideslope, not on AoA, don't flare. Go around - hopefully you have recognized the problem far earlier and you've already initiated go-around.

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Reminder: SAM = Speed Bump :D

I used to play flight sims like you, but then I took a slammer to the knee - Yoda

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After doing dozens of take offs & landings and considering all the replies here.. I think I now have a rough idea of my own take off & landing style..

 

 

For take off.. 160 knots + TO trim, since my joystick is not precise and it's easy to over pitch. Although buggy, the TO trim helps.. at least in my case..

 

 

Anyway... I'll just keep the mindset of doing a 3 degree descent path on the runway. AoA not going below 10/Pitch Attitude 6 degrees and up as much as possible and not over Pitching on the Aerobraking Roll....

 

More importantly... bringing the Eagle down without breaking it...

 

I guess I shouldn't think much since I'm not really getting payed to fly the thing in-game or so

 

It's still a game after all.. :) I'll just make my life simpler.. ^^

 

 

Thanks for the replies all^ It helped me a lot~

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