Takeoff realism?

[simibill]

I don't find any tail draggers that exhibit realistic takeoff characteristics. i.e., any tendency to ground loop or veer off to the left on sudden power application, or torque roll with power applied at low speed, etc. Are there settings that can be applied to get these characteristics to appear?

[opjose]

Left yaw & engine runup torque effects, were perceived as being too severe in G3.

People complained about this ( myself included ) and one of the G3 patches seems to have made ALL of these effects go away.

This is still holding true with G4 as well.

KE hasn't addressed physics improvements for quite a while.

I hope that they will get back to fixing all of these things.

It seems like these things have fallen by the wayside with all of the patches and upgrades.

[Blade Scraper]

It seems alot of the warbirds from the G3 swaps have extreme stability problems too.


I think those over scaled (400%) take off more realisticly because you can have the nose high and have the main wheels on the ground still.

[opjose]

simibill

ground looping is actually well handled.

The friction co-efficients of both the wheels and the ground need to be adjusted on many airports to make the planes ground loop properly.

[simibill]

Originally Posted by opjose

simibill

ground looping is actually well handled.

The friction co-efficients of both the wheels and the ground need to be adjusted on many airports to make the planes ground loop properly.

I don't attribute ground looping to wheel friction nearly as much as torque effects which are non existent.

[opjose]

If you yaw a plane upon landing, wheel friction comes heavily into play.

On real RC planes, the wheels keep the plane scooting down the direction of flight. Yaw too much and the plane will enter a ground loop as the plane moves sideways relative to the wheels direction of rotation.

In G3/G4 wheel & ground friction is important to get the same effect.

Adjust it upward and the planes will ground loop realistically.

Ground loops have actually little to do with torque.

Real RC planes that track straight can and will ground loop easily in either direction.

Were this to be a torque issue, it would be almost impossible to ground loop in one direction, while incredibly easy in the other.

[simibill]

Originally Posted by opjose

If you yaw a plane upon landing, wheel friction comes heavily into play.

On real RC planes, the wheels keep the plane scooting down the direction of flight. Yaw too much and the plane will enter a ground loop as the plane moves sideways relative to the wheels direction of rotation.

In G3/G4 wheel & ground friction is important to get the same effect.

Adjust it upward and the planes will ground loop realistically.

Ground loops have actually little to do with torque.

Real RC planes that track straight can and will ground loop easily in either direction.

Were this to be a torque issue, it would be almost impossible to ground loop in one direction, while incredibly easy in the other.

On landing, I would agree that a crab angle would tend to lead to a ground loop. I am more interested in the takeoff effect of torque causing an abrupt left turn when the throttle is advanced too rapidly. This condition is not modeled in any respect in G4. Take any model which is lined up on the runway and blast the throttle and you smoothly advance down the runway and takeoff. Not realistic to real RC tail draggers.

[opjose]

Originally Posted by simibill

On landing, I would agree that a crab angle would tend to lead to a ground loop. I am more interested in the takeoff effect of torque causing an abrupt left turn when the throttle is advanced too rapidly. This condition is not modeled in any respect in G4. Take any model which is lined up on the runway and blast the throttle and you smoothly advance down the runway and takeoff. Not realistic to real RC tail draggers.

Correct-o-mundo!

The strange thing is that this was all there in older versions of G3.

With one of the updates, we all started complaining about too much left yaw on planes ( which actually was caused by a lack of rudder authority, which was LATER fixed!!! )....

And someone in their infinite wisdom ( sorry KE, but it should not have been removed! ) eliminated Torque, P-Factor and other second order effects altogether.

Now no matter how high you dial things up in the physics editor, nothing happens...


KE, PLEASE, PLEASE, PLEASE, PLEASE, PLEASE, PLEASE!!!

We are overdue for an update to address physics issues!

Or at the least turn these effects back on... let the screaming come what may!