pauldy Posted June 8, 2014 Posted June 8, 2014 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 ^ [sIGPIC][/sIGPIC]
bolek Posted June 8, 2014 Posted June 8, 2014 -What are the ballpark AoA values needed when on final approach? AoA 22 cockpit units (not sure what it is in degrees, probably something like 11-12)
pauldy Posted June 9, 2014 Author Posted June 9, 2014 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... [sIGPIC][/sIGPIC]
lanmancz Posted June 9, 2014 Posted June 9, 2014 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. [sIGPIC][/sIGPIC] Gigabyte Aorus Z390 Elite, Intel i9 9900K, Fractal Design Kelvin S36, Zotac GTX 1070 8GB AMP Extreme, 32GB DDR4 HyperX CL15 Predator Series @ 3000 MHz, Kingston SSD 240GB (OS), Samsung 970 EVO 1TB M.2 NVMe (sim), Fractal Design Define R5 Black Window, EVGA SuperNOVA 750 G2, Win 10 Home x64, Thrustmaster Warthog HOTAS, Saitek Pro Flight Rudder Pedals, Thrustmaster MFD Cougar Pack, TrackIR (DelanClip), 3x 27" BenQ EW2740L, Oculus Rift S
GGTharos Posted June 9, 2014 Posted June 9, 2014 (edited) 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 June 9, 2014 by GGTharos 1 [sIGPIC][/sIGPIC] Reminder: SAM = Speed Bump :D I used to play flight sims like you, but then I took a slammer to the knee - Yoda
Exorcet Posted June 10, 2014 Posted June 10, 2014 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. Awaiting: DCS F-15C Win 10 i5-9600KF 4.6 GHz 64 GB RAM RTX2080Ti 11GB -- Win 7 64 i5-6600K 3.6 GHz 32 GB RAM GTX970 4GB -- A-10C, F-5E, Su-27, F-15C, F-14B, F-16C missions in User Files
Djent33 Posted June 11, 2014 Posted June 11, 2014 The rule of thumb for a takeoff is to reach 150 kn and lift it slightly, then as soon as you feel the lift you pull on the stick an go up vertical without scratching. What a feeling.
pauldy Posted June 11, 2014 Author Posted June 11, 2014 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? [sIGPIC][/sIGPIC]
GGTharos Posted June 11, 2014 Posted June 11, 2014 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. [sIGPIC][/sIGPIC] Reminder: SAM = Speed Bump :D I used to play flight sims like you, but then I took a slammer to the knee - Yoda
SDsc0rch Posted June 11, 2014 Posted June 11, 2014 "flare to land is squat to pee" heheh! ; ) i7-4790K | Asus Sabertooth Z97 MkI | 16Gb DDR3 | EVGA GTX 980 | TM Warthog | MFG Crosswind | Panasonic TC-58AX800U [sIGPIC][/sIGPIC]
leafer Posted June 11, 2014 Posted June 11, 2014 Is that why people look at me funny.. huh ED have been taking my money since 1995. :P
pauldy Posted June 12, 2014 Author Posted June 12, 2014 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~ [sIGPIC][/sIGPIC]
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