Handling on the ground

During take off and landing, plane goes to right or left very violently. With other planes like hornet and tomcat, i don't get this problem that seriously, i can manage to keep them on the runway somewhow

I had to dial in a decent curve into the rudder axis. I think it's down to the narrow wheel track exacerbating any lateral load shifting.

Turn NSW steering off once over 70 knots, as the rudder is much more gentle than the NSW

Hi!

During take off and landing, plane goes to right or left very violently. With other planes like hornet and tomcat, i don't get this problem that seriously, i can manage to keep them on the runway somewhow

Just a question: do you disable the NWS over 60kts as required?

Regards.

Hi!

 

Just a question: do you disable the NWS over 60kts as required?

Regards.

yes if i don't do it, i would end up leaving runway from the sides before take off.

yes if i don't do it, i would end up leaving runway from the sides before take off.

:thumbup:

I’ve noticed this problem as well. It’s almost like the nosewheel loses traction after you advance the throttle to takeoff thrust. You have to correct the drift which by then is close to 50kts. I don’t know. Just seems odd.

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My experience is that since the last update behaviour on the ground is problematic and NWS is extremely sensitive. Flatten the axis does not solve the problem and has practically no effect.

Hopefully NWS sensitivity will at some point soon be correlated to speed. Right now it's far too twitchy at anything over a brisk walk and tuning it out with axis curves kills rudder effectiveness.

Feels to me like the jet has no weight on the wheels. It's like it's always on wet pavement or ice.

I'm getting a very distinct pull to the right side of the runway always on takeoff. I do disengaged NWS steering around 50-60kts, but I find I still need quite a bit of rudder to keep the jet in the middle of the runway until liftoff. It almost like taking off with a big prop motor with lots of torque. A single engine centerline thrust jet should not be veering off the runway so quickly with no rudder inputs. I can't imagine the real F-16 behaves this way.

I'm getting a very distinct pull to the right side of the runway always on takeoff. I do disengaged NWS steering around 50-60kts, but I find I still need quite a bit of rudder to keep the jet in the middle of the runway until liftoff. It almost like taking off with a big prop motor with lots of torque. A single engine centerline thrust jet should not be veering off the runway so quickly with no rudder inputs. I can't imagine the real F-16 behaves this way.

Same Effect..Same Thinking

Which direction does the turbine spin? It is feasible that as the rotor of the turbine spins up the reaction force from the airframe causes an increase in weight on one wheel. Unlikely granted given the mass of the turbine rotor will be a small proportion of the overall weight, but I guess still possible.

Have ED commented yet on whether this behaviour is true to life?

If it was so skittish in RL I doubt it would be allowed. Certainly not safe for multi plane TO even with separation. As usual with these issues there will be some of us that apparently have no problems with it.

If it was so skittish in RL I doubt it would be allowed. Certainly not safe for multi plane TO even with separation. As usual with these issues there will be some of us that apparently have no problems with it.

I know of four real jets that are able to take off with no issue in a fingertip formation constantly. Yet :joystick: our jet just :megalol::doh:

I know of four real jets that are able to take off with no issue in a fingertip formation constantly. Yet :joystick: our jet just :megalol::doh:

:thumbup:

at 80% rpm she starts hovering.

Take a clean jet with barely any fuel, have it roll around and look how your guncross moves up when you are just at 10 / 20 / 30 kt ground speed.

The nosewheel is center of lift.

Feels like driving a car with bad tracking, just posted a similar question about the F18 actually, the Falcon is miles worse tho and feels very much like NWS sensitivity , where the F18 just wanders around like bad tracking......wish I had spotted this thread before !

The problem is also exacerbated if you are using the keyboard for rudder / nose-wheel steering because it is either all or nothing. A depress of the X / Y key gives FULL nose-wheel or rudder. It is horrible.

I use my rig for dual use of both flight sim and racing. So when I do not have my flight pedals on because I have my racing pedals mounted, it is virtually impossible to take off with an asymmetric load out.

I can confirm this problem. My Viper always veers to the right during landing..which is problematic if you're air-braking (i.e. nose up) at the same time..

Interesting...... I wonder if there is a bug in the brakes that maybe the right MLG brake is dragging ever so slightly. I see this when I brake as well, the jet pulls ever so slightly right with both toe brakes equally applied. But a slightly higher brake setting on one side would be exacerbated at higher speeds such as takeoff and landing.

I may go and play with my brake setting curves and see if this has any effect.

Yes could be, I have had landings where i could not keep the plane on the runway always went off to the right side, when aero braking. Granted there was quite a bit of wind, it was controllable while still airborn and 2 m over the rundway, but as soon i touch down it went crazy full left rudder and still went off to the right. The plane even wanted to flip over to the left. both rear tires were on the ground speed about 100 IAS. had to put in full right stick to compensate.

So I played with my toe brake settings on my rudder pedals And I set the deadzone slightly higher on the right brake (10) than the left (5) and it definitely seemed to make a difference in tracking on the ground. When it was heavy weight at t/o, it seemed track straight ahead at high speed before NW liftoff. I even took my feet off the pedals and it didn't veer right all. Same on landing while heavyweight. If anything it seemed to want to pull every so slight left now. But nothing like it was doing before.

I then tried the same settings pretty lightweight on both takeoff and landing. It was much improved, but did seem to want to pull slightly more left now. But again, nowhere as drastic as it was doing to the right before I made the changes.

What I notice is when the jet is really lightweight on landing and you get in the aerobrake and get the nose up towards 10 deg at high speed - it wants to "dance" on the main gears quite a bit. Once you get slow and start to lower the nose, it really dampens out a lot. And then once you're fully on the brakes and the nose strut compresses, the steering is much easier to control.

Anyway, in conclusion - it appears that there may be some uneven drag on one of the brakes (suspect R) and perhaps tweaking the different brake settings will get it handling easier on the ground.

Prompted by =Panther= in another topic I trickled down the runway at sub 20knts trying both left and right toe break alternately. Initially I had the opposite to =Panther=. But after coming to a halt and moving off again a couple of times the zero toe break changed sides. So at takeoff I had only one side working and that side changed during the roll.

Which direction does the turbine spin? It is feasible that as the rotor of the turbine spins up the reaction force from the airframe causes an increase in weight on one wheel. Unlikely granted given the mass of the turbine rotor will be a small proportion of the overall weight, but I guess still possible.

Have ED commented yet on whether this behaviour is true to life?

Just a note that the fans, compressors & turbines aren't really producing any real torque. They would only do so if there was a significant shaft output like a turboprop or I suppose if the engine or its mounings were significantly offset.

I have found the F16 to be extremely tippy. I can easily scrape my nose or a wintip, or even turn turtle just by turning too fast while taxying.