WWW.PROTu-154.org
Project Tupolev Team Forum Index Log in Register FAQ Memberlist Search

Project Tupolev Team Forum Index » Project Tupolev Support Forum (English) » Rudder roll?
Post new topic  Reply to topic View previous topic :: View next topic 
Rudder roll?
PostPosted: Tue Dec 20, 2016 10:29 Reply with quote
slicemaster
Курсант
Joined: 26 Feb 2005
Posts: 6
Location: Krasnoyarsk




Hi.

FSX + 154B2

After whatchin some Vanderburg videos, to be exact, this one:

WfNBmZy1Yuc

I tried to perfom it in FSX.
Unsuccessfully.
Same method: speed 360km/h flaps 28-45, gears down.
Full left rudder, pairing it with woke roll. Reducing speed untill stall.

It looks like Rudder don`t produce any significant rolling force on a plane.

Is it 154 real aerodynamics or just lack in the PT flight model?

_________________
Небеса это не место и не время. Небеса это достижение совершенства (с) Р. Бах
View user's profile Send private message

Trying to spin a FS "airplane"
PostPosted: Tue Dec 20, 2016 17:28 Reply with quote
WalterLeo
КВС
Joined: 10 Feb 2009
Posts: 1660
Location: Viena Austria




Hi:

A real airplane and a simulated one in FS are quite different because the flightdynamic model in FS is a crude abstraction of reality. Besides that even in real there are dark corners of the flightenvelope which are not well understood as e.g. a B747 or an AB 380 you i.e. their testpilots will not fly them into a spin or deep-stall. So recovery even in the real thing is not shure as the testpilot of the AB 330 declared after the AF 447 crash where that airplane was flown down to 30 kts airpeed and against conventional wisdom did not spin.

Back to FS: normally autocoordination is on and by definition will avoid a spin but you can stall a FS airplane and it will fall down with some gyrations but having enough altitude it will come out of the stall if you leave the controlls alone and throttle back to idle, hopefully not having a simulation with autotrim (like the PT-IL62M).
Tu-154 simulation needs using the joystick utility and programming the axes of the flightcontrols and you must use the trim via the programed joystick.

So before trying to fly a simulation into the dark corners of the flightenvelope one should check if the setup of the simulation is adequate for the task.

Dutch Roll can according to my knowledge not sufficiently programed into the FS flightdynamics. In "my" Tu-104 I have tried it but not as the real thing goes.

Besides that it is not so easy to bring a real small airplane (a C150) into a spin, my flightinstructor had to help me.

Kind regards

Walter
Удивление

P.S.: Pulkovo flight 612 (a Tu-154M) entered into an onrecoverable flat-spin:

https://en.wikipedia.org/wiki/Pulkovo_Aviation_Enterprise_Flight_612

_________________
You think I am a bad pilot, you should watch me playing golf!
View user's profile Send private message Visit poster's website

Rudder roll?
 Project Tupolev Team Forum Index » Project Tupolev Support Forum (English)
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum
You can attach files in this forum
You can download files in this forum
All times are GMT + 3 Hours  
Page 1 of 1  

  
  
 Post new topic  Reply to topic  


  Powered by phpBB © 2001-2005 phpBB Group. Designed for protu-154.org | Webmaster - ^COOLER^