Having used FS2004 and FSX for years without any problem am now faced with probably a minor glitch.

All's well installed for first flight, joystick (Logitech Extreme3D) calibrated, brake released on runway (keyboard "b")

yet when applying power aircraft veers off runway in a circle screeching with obviously at least one brake still applied????

Any suggestion or  help is greatly appreciated

 

Ulrich 1/YUL

49 minutes ago, Ulrich 1 said:

yet when applying power

it is possible there is a toe brake misconfigured.

but My first reaction is that "maybe" you are applying power to quickly, and getting turned by the prop torque effect which isnt simulated in fsx/2004

is it turning to the left by any chance?

if so, be more gentle with the power and correct the tendancy to turn left with the pedals

The veer left due to engine torque, slipstream etc is totally unrealistic and has been for a long time.

22 minutes ago, DavidP said:

The veer left due to engine torque, slipstream etc is totally unrealistic and has been for a long time.

To fsx pilots.

Not to the faa.

Cant imagine why Laminar would listen to the stupid faa when fsx pilots are clearly the experts.... 

____

Take off should go something similar to this

 

Edited July 18, 20205 yr by mSparks

28 minutes ago, mSparks said:

To fsx pilots.

Not to the faa.

Cant imagine why Laminar would listen to the stupid faa when fsx pilots are clearly the experts.... 

____

 

Well, I've been instructing for several years and have over 1,500 hrs experience. I have never seen a 172 or a 152 turn you inside out like XP does. I fly my own 270hp turbo Mooney and while you need to hold in right rudder, if you didn't you would certainly veer off the runway, but what effectively amounts to a ground loop in XP - I don't think so. But what would I know?

Edited July 18, 20205 yr by DavidP

12 minutes ago, DavidP said:

while you need to hold in right rudder, if you didn't you would certainly veer off the runway,

sounds like a challange to me.

Take off in your turbo mooney by dumping full throttle in less than a second fsx style with your feet off the pedals sat like bhudda on the seat.

Love to see the video of how that works out.

Edited July 18, 20205 yr by mSparks

11 minutes ago, mSparks said:

sounds like a challange to me.

Take off in your turbo mooney by dumping full throttle in less than a second fsx style with your feet off the pedals sat like bhudda on the seat.

Love to see the video of how that works out.

🤣

7 minutes ago, mSparks said:

Take off in your turbo mooney by dumping full throttle in less than a second fsx style with your feet off the pedals.

Love to see the video of how that works out.

So why would I want to do that, apart from wanting to eventually destroy my engine? When we teach people we teach them to fly the aircraft properly. The point is that XP does not model this characteristic properly - don't worry, I've tried the correct technique in XP and has resulted in the ground loop. It's one reason why I rarely use XP. You clearly seem to think this is a "my sim, your sim" issue. It isn't, it is my observation that it isn't modelled correctly. And as a by-the-by, the synthetic training device at my flying school, certified by our aviation regulator, is driven by.... you guessed it.... P3D Pro.

30 minutes ago, DavidP said:

So why would I want to do that

because the behaviour doing that is what you just told the op is a bug in XP - since FSX is perfectly fine with doing exactly that.

30 minutes ago, DavidP said:

The point is that XP does not model this characteristic properly

yaw stability is configured by aircraft in planemaker (with some user tweeking available from one of the menus). XP is entirely capable of modeling the full range from perfect fly by wire to no tail surface at all.

Aircraft dev may well get this wrong tho, most of them dont even seem to have pilots licences, and even the ones that do have egos much larger than their experience would justify.

 

Edited July 19, 20205 yr by mSparks

13 minutes ago, mSparks said:

because the behaviour doing that is what you just told the op is a bug in XP - since FSX is perfectly fine with doing exactly that.

Incorrect. I made no mention of throttle use. I stated the effect was unrealistic which it is in my observations of the default 172. I also made no reference to other sims.

 

13 minutes ago, mSparks said:

Aircraft dev may well get this wrong tho, most of them dont even seem to have pilots licences, and even the ones that do have egos much larger than their experience would justify.

On that I agree. I might also add that lots of simmers think they know more that real pilots who do have experience.

Edited July 19, 20205 yr by DavidP

40 minutes ago, DavidP said:

Incorrect. I made no mention of throttle use.

A typical long time FSX user from my experience takes off by instantly going to full throttle and doesn't need to use the pedals, common to not even even have any kind of yaw input.

Because, thats "as real as it gets"...

They then struggle with veering to the left coming to XP.

OP said:

3 hours ago, Ulrich 1 said:

Having used FS2004 and FSX for years without any problem

 

40 minutes ago, DavidP said:

I stated the effect was unrealistic which it is in my observations of the default 172.

when was this?

the default 172 ground handling was overhauled end of last year, one of the main sources of confusion/issue is how the toe brakes are simulated (all fixable now with the custom joystick curves)

What kind of toe brakes were you using?

 

Edited July 19, 20205 yr by mSparks

THere is an addon that addresses some of the default 172 issues, might get it, but there i a 150 a 152 and a 172 sp avaliable much better of which I have all 3. By the way what ver xplane you on.

9 hours ago, Ulrich 1 said:

Having used FS2004 and FSX for years without any problem am now faced with probably a minor glitch.

All's well installed for first flight, joystick (Logitech Extreme3D) calibrated, brake released on runway (keyboard "b")

yet when applying power aircraft veers off runway in a circle screeching with obviously at least one brake still applied????

Any suggestion or  help is greatly appreciated

 

Ulrich 1/YUL

Hi Ulrich,

you want to go to the X-Plane menu (bump mouse against top of screen), then the "second from right" symbol (go to settings menu) and then the Data Output tab. Here you select the leftmost (display on monitor) checkbox #5 (weather) and #14 (gear and brakes).

Now you can see the data values for the weather and the brakes currently acting on your aircraft.

You can now ascertain if any brakes are indeed applies (values range from 0 to 1) and also what the current wind is that is acting on your aircraft. Often new users make the mistake of setting up a strong wind aloft (like 60 kts at 30.000 feet) - but not being aware of the fact that X-Plane will propagate this single wind all the way up and also down (to the ground). So effectively you would try taking off with a 60kt wind in that case...

Let us know what you find out, Jan

 

Thanks a million Jan, sounds logical and plausible, won't be near XPlane11 for a few days, but with your exhibited help it should be a breeze and I don't mean at 60kts . I'll let you know in due course.

Ulrich1/10km east of YUL

Hi

As I understand it excess prop wash has been a problem for many years in X-Plane. Apparently this is actually a "feature" that has accidentally been inbuilt. It looks as if 11.4x has a cure and a calming effect. This is what I've gleaned from a news release and previous blogs that I've come across.

https://developer.x-plane.com/2019/09/experimental-flight-model-changes-in-x-plane-11-40/

Happy reading

Bob