hello my follow pilots and controllers ….
During rotation I try as much as possible to rotate and not lifting of the ground immediately just the way it is irl but in infinite flight it seems was I rotate at my rotation speed in the next seconds I’m of the ground is there something I’m doing wrong
It’s the A380 and I was over 80%load
And I used 97% thrust
Detailed explanation would be appreciated thanks
Hi, how much effect a given rotation angle has on the start of vertical cllimb depends on load, indicated airspeed, and air density.
So if you are fast enough for your current load and the prevailing air density, relatively less rotation angle will cause immediate vertical acceleration.
You can get some extra sense of this by pullling a and holding a fixed rotation angle early in your runway roll (well before takeoff speed), and simply observe how the plane ascends on its own when it achieves sufficient forward speed.
I believe, ideally, rotation speeds are calculated to give a smooth transition from rotation through to the commencement of ascent.
But it necessarily involves an overlap between aircraft data and pilot technique.
And in the case of a simulator there may be further adjustments needed for differences between reference sources and the implemented flight model.
Speaking for myself, I tend.to use judgement based on experience of what has worked in the past, based on load and.flap settings.
And then I try to let the plane find the start of ascent on its own after a smooth as possible rotation.
But my rate of rotation is a mix of feel and guess.
Sorry that’s not very precise, but that’s how I think about my own technique.
Hi ok please can I see a video of your take just one so I can compare with mine to know if I’m doing the right thing lol
I was on 82% load my rotation speed was 158
And v2 was 177
Thrust is 97%
You should keep thrust around N1 91-93% and if the runway is short then only you should increase the thrust. It also depends on the winds like its headwind, tailwind or crosswind.
Also check your control sensitivity if its on high, set it to normal and if you feel normal is also fast then try on low sensitivity
what flaps did you keep during takeoff roll at 82% load?
For 82% load I used flaps 2
Where do I see the control sensitivity?
Standard rotation around up to 2000V/s or less and over 1000ft it’s around 1000V/s based on OMDB SID except west and weather.
General and scroll you will find the option
Hi there,
In my books, at 510k kg (82%) in conf 2, 91%N1 is enough with VR 146. Your rotation speed is too high for the configuration, and you use too much power.
You may try these in solo and let me know if the takeoff feels more like IRL.
V2 is what ?
I believe v2 is the minimum flight speed you maintain if one engine fails on takeoff. You should be at least 35 feet above the runway if the engine failure happens.
V2 is about 155-160, but what matters really is VR, power and a smooth action to rotate.
Use 100% Thrust and only begin rotate near 120-140 knots Airspeed. Remember to GENTLY ROTATE, if you aggressively rotate the only place you will land yourself is a pancake on the runway, that is if you do it in GA or Airliners
So yeah. Like @Tep_NEMO stated in the V2 comment, you truly should only rotate at different speeds for each aircraft jumbos 150-160
Cargos 160-170 if loaded
Airliners:165-170
Smaller Airliners/charters 135-150
All of these speeds are in knots, in a military and GA aircraft these speeds are to varying for me to label her.
Hope this answers the question @Derrick778
You’re not doing anything wrong, the aircraft in IF are overpowered. In the A388 for example, industry performance data indicates an initial climb rate of 1500ft. Like you said, following the IF A380 Profiles Guide, the suggested takeoff thrust is far too much. You’ll use less than half the RWY, and explode into the air at 3.5k ft/min. Reading your post, it sounds like you have more of an issue with how early the rotation is not the sensitivity of your rotation?
The way that I have combated this (and like yourself, I was aiming for realism) is by trial and error. I have a google sheet where I record my Load %, TODA, Winds (including HW/XW), TO thrust %, and Vr speed calculated by simbrief for reach aircraft and flight. Over time, I know what TO thrusts to use according to the TO conditions and I now enjoy realistic takeoffs as well as a little bit of additional fun in planning the takeoff.
In other words, practice makes perfect and although you don’t want to risk safety in the pursuit for realism (i.e. stalling, tail strike, overrun etc.), don’t be afraid to fall drastically short of the IF guide’s recommendation. This morning, I took off from AKL with 63% load and used 78% TO thrust, a solid 19% (!) lower than the IF guide’s recommended TO thrust. It was a beautiful, smooth, and safe takeoff. Let me know if you have any more Qs.
Ok alright thanks so much because I love realism so much I really don’t like the way the aircraft leaves the ground immediately I rotate irl the nose goes up for some few seconds before the aircraft leaves the ground
And whenever I use simbreif take of plan I end up stalling because InfiniteInfo flight does not have the flex take of option it’s only toga and I’ve no choice but to sue the a380 profile guide given by the community
For a flex take of what thrust is needed ? Because simbreif take of thrust is always flex
You have to calculate it’s no defined number remember your old post?
I have made a calculator for myself, you may wanna try it. It is a bit complicated, but works great.