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VTOL - Allow nozzles pointing to ground below 5kph
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Currently, it is not possible to configure VTOL aircraft to point the nozzles down to allow for proper vertical take-off. As soon as you go above 5kph you can turn the nozzles towards ground (that is with using "vtol = 1" or "vtol = 2").

On the other hand using "vtol = 3" or "vtol = 4" causes the opposite, they will point to the ground until you reach above 5m altitude when you can point them backwards. However VTOL aircraft like F-35 should allow both at any time.

Getting "vtol = 5" that has no restrictions whatsoever would be the best solution to this.


Operating System
Windows 10 x64

Event Timeline

Jonpas created this task.Sep 22 2017, 11:13 PM
oukej added a subscriber: oukej.Sep 25 2017, 2:18 PM

Hey, thanks for the report.

Except of vtol = 3 (Osprey-like VTOLs) there shouldn't be vectoring angle restrictions. Just to be sure - have you been trying it with manual vectoring control?

Hi @oukej thanks for the fast reply!

Yes I have been trying it with manual vectoring control, I tried all vtol modes, while 1 and 2 don't allow me to vector down, 3 and 4 are the opposite (with some other differences due to height, not just speed of course).

I have been trying this with CUP's Harrier and F-35, since there is no VTOL like that in vanilla. "Like that" meaning it has nozzles that should point down on the ground. As far as I know there is no other configuration for VTOLs except "vtol = X" config property, and nozzles can definitely be moved as you can move them when going faster than 5kph just fine.

"vtol = 1" and "vtol = 2" work exactly the opposite way of "vtol = 3", while 3 restricts vectoring for forward flight to not break the rotors, 1 and 2 restrict vectoring for vertical flight, but the only limitation is apparently speed, you can just slowly roll forward and after 5kph is hit you can vector down no problem.

Even bigger problem is landing with it though, as vertical speed is apparently also taken into account, but not limited to 5kph (or just different calculation), as soon as you touch down (which you have to with very high throttle input) nozzles will automatically reorient for forward flight and make you roll a bit before you manage to cut the throttle.

Let me know if further explanation is needed, or if I am possibly missing something.

oukej added a comment.Sep 25 2017, 6:09 PM

Will have to recheck the vtol 1 and 2 and get back to u.
Anyway vtol=4 should definitely have no restrictions - we've added that one for Xian - to have vertical vectoring as default/initial state and allow full range while sitting on the ground at the same time.

Jonpas added a comment.EditedSep 25 2017, 8:10 PM

I just tried again and realized I forgot about that. "vtol = 4" has the same issue as "vtol = 3", when you are on the ground nozzles are forced into vertical flight orientation. So it's the opposite of 1 or 2, it's like 3 in that manner, except it doesn't even allow for the minor changes that 3 allows (90-60° change or something like that), it's completely locked (at 90°) below certain height (~7m it seems).

It works fine on Xi'an ("vtol = 4") though, is there some other configuration that has to be done to make it work properly that wasn't documented yet either? On the CUP Harreir and F-35 with "vtol = 4" it just forces 90° angle below 5m altitude.

Jonpas updated the task description. (Show Details)Sep 26 2017, 12:31 AM
Jonpas added a subscriber: Alwarren.EditedSep 27 2017, 7:51 PM

@oukej Thanks to research of @Alwarren we found out CUP's Harrier and F-35 are not "airplanex", but only "airplane" (due to some old issues that "airplanex" had with LHD, however that was not yet retested post Jets DLC). After changing it to "airplanex" vectoring with "vtol=4" works perfectly.

There are some other issues to solve that come with having "airplanex" of course (all the PhysX stuff), but we will open another ticket if any of the old issues still exist that would need fixing to make it work properly. Apologies for opening the ticket and taking your time, I will look into adding a note about that to the wiki.

It would of course be nice to get the same VTOL support with simulation "airplane", as "airplanex" requires a lot of manual changes to make it work the same way. Just for consideration. ^^