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[Wing Walker]

Has anyone figured out how to keep aircraft from taking off in random directions when they taxi to take off?

It seems in doing this I can't keep the last plane, or sometimes the last 2 planes in the flight from powering up at a random angle or spot on the taxi way points.

Even when I get them on the runway at the same time, the last plane being in line with the others will power up suddenly and veer off in another direction.

From what I am seeing I THINK it has something to do with timing in the aircraft powering up.  It seems the last aircraft wants to power up when the aircraft before them does, no matter what position it is in along the taxi way points.

The engine start randomness seems affect it too with a delay of the aircraft taxiing with the others.

Right now I've tried playing with the spacing and the delay but neither do anything accept for the first taxi waypoint.  So I just limit to 2 planes and they don't get too far behind.




   

[UberDemon]

Took me a while to get this figured out.  The best thing is to analyze in detail how the sample mission from 4.12 by the 1C team behaves.

* [IL-2/BAT Installation Directory]\Missions\412_Demo_Missions\AITaxiing.mis

This is what I do.

I do whatever Taxiing I want, then I have planes come to the runway in the center Runway X marker, then I have another two taxi waypoints pointing towards the opposite (takeoff) side of the runway.  I then place the NORMAL TAKEOFF point as a point that goes straight from the last taxii point just beyond the runway's X marker, but always out of the runway (think of the area when you just run out of runway).  The best behavior I get is to then place the first flying waypoint 45 degrees or more to either side (depends on landscape) at least about a runway's length away... at about 1000m altitude.  (I make sure the points leading to takeoff are all in the center of the runway.)

Good luck.

[vonofterdingen]

I've only seen this behavior in scramble-type missions, i.e., when an enemy attack is imminent. Is that the case here? If not could you post an example?

[Dimlee]

Just from my observations. I remember two types of AI taking off in random directions:
1. AI ignores waypoints persistently, it shoots across the field trying to take off (on some maps that means immediate collision with a forest or other objects). AI does it every time the mission is played. Moving waypoints or other small tweaks don't help—only the change of the airfield.
2. AI occasionally ignores the waypoints, not every time the mission is played. Changing the waypoints and/or the spawn places helps. Sometimes the issue was caused by other objects on the airfield: fuel trucks, etc.
And I have a "feeling" that it depends on the airfield as well.

[Wing Walker]

I've had random problems with AI and takes offs also, not just this one.

It seems to be just the #4 or the #4 and #3 plane taking off across the airfield at a random angle.

Part of me thinks it might have something to do with these are "Navy" planes, Jap Zeros.  Maybe there is some behavior there for the AI to take off right after the previous pane in line does as if on a carrier?

But I've still had them be inline with the other aircraft and the runway, then power up and skew off to a side angle from the runway anyway after the previous pane is up.

Like they torque or over rudder to the right when taking off.

I've had the problem in the past with F4U-1's on Henderson, can't remember what I did, think I just deleted and redid the flights.

Also, FYI, I did find out that if all planes are not airborn by the time the lead plane reaches the "Take Off" "Normal" way point, the flight will circle low right after take off until the last plane is up.  Here my bombers would circle right after takeoff and straight into hilly terrain if near by, they wont climb to avoid.  The FIX was placing the "Take Off" "Normal" way point far out so the #1 a/c didn't reach it until the last plane was off, they still took off in the minimal runway distance though.

 

[UberDemon]

Send me the mission code and I'll try to fix it for you.