Mixed auto coordination

KL-666
Posts: 1609
Joined: Mon Sep 28, 2015 8:42 am

Mixed auto coordination

Postby KL-666 » Sat Nov 19, 2016 11:59 am

On a stick with twist rudder, i find it not as precise as pedal rudder. So i like to make use of auto coordination. Yet in some cases i definitely need separate rudder control (strong crosswind). Therefore i added a binding to my rudder definition in the joystick xml, that allows me to have auto coordination when i do not twist the rudder, and separate rudder control as soon as i do use the rudder. Just sharing this for people who might find this useful too.

Code: Select all

    <binding>
    <command>nasal</command>
    <script>
        setprop("/controls/flight/auto-coordination", (getprop("/controls/flight/rudder") == 0));
    </script>
    </binding>


Credit for the idea should go to Tikibar. He had it built into the 747-8i at one time (not sure if it is still in there). All i did was transporting the idea to the joystick, so it becomes available for all planes.

Kind regards, Vincent

User avatar
it0uchpods
Posts: 2121
Joined: Sun Oct 18, 2015 2:47 am
Location: A far corner of my room.
Contact:

Re: Mixed auto coordination

Postby it0uchpods » Thu Nov 24, 2016 4:14 pm

What does it do? I don't understand the point?
it0uchpods/WTF411

FlightGear Aircraft Developer
Lead Programmer at the it0uchpods Design Group
Download High Quality Aircraft from it0uchpods Hangar

sanhozay
Posts: 160
Joined: Fri Sep 25, 2015 5:59 pm

Re: Mixed auto coordination

Postby sanhozay » Thu Nov 24, 2016 4:41 pm

It turns auto-coordination on when the rudder is not being deflected by the stick and vice versa. This means he can use auto-coordination most of the time, but override it and control the rudder manually for takeoff and landing.

User avatar
IAHM-COL
Posts: 5668
Joined: Sat Sep 12, 2015 3:43 pm
Location: Homey, NV (KXTA) - U.S.A
Contact:

Re: Mixed auto coordination

Postby IAHM-COL » Thu Nov 24, 2016 4:50 pm

true fancyness.

Shouldnt this be a fgdata distributed piece of jewel?
then make auto-coordination default, unless otherwise specified with a --prop=/the/non/normal/method/of/coordination=off
R.M.S.
If we gave everybody in the World free software today, but we failed to teach them about the four freedoms, five years from now, would they still have it? Probably not, because if they don’t recognise their freedoms, they’ll let their freedoms fall

User avatar
it0uchpods
Posts: 2121
Joined: Sun Oct 18, 2015 2:47 am
Location: A far corner of my room.
Contact:

Re: Mixed auto coordination

Postby it0uchpods » Fri Nov 25, 2016 1:26 am

Then whats is the point of auto-coord if you have a rudder axis?

Trying to use it like a yaw damper?

My AP is getting a yaw damper, eventually, once I sort rudder control, and I think the 777 he flies might have once already.
it0uchpods/WTF411

FlightGear Aircraft Developer
Lead Programmer at the it0uchpods Design Group
Download High Quality Aircraft from it0uchpods Hangar

KL-666
Posts: 1609
Joined: Mon Sep 28, 2015 8:42 am

Re: Mixed auto coordination

Postby KL-666 » Fri Nov 25, 2016 1:42 am

it0uchpods wrote:Trying to use it like a yaw damper?


No, using full non-auto-coordination, whenever i start using rudder axis. When i do not use it, i have auto-coordination. The reason for wanting that i stated before: I find twist stick rudder too crude to make all my turns with.

So recapitulating: It is an automatic switch between auto-coordination and non-auto-coordination. Non-auto-coordination is activated when i start twisting the stick, else i have auto-coordination.

Kind regards, Vincent

User avatar
it0uchpods
Posts: 2121
Joined: Sun Oct 18, 2015 2:47 am
Location: A far corner of my room.
Contact:

Re: Mixed auto coordination

Postby it0uchpods » Fri Nov 25, 2016 1:58 am

What is the point of auto-coord if you have a twist axis?
it0uchpods/WTF411

FlightGear Aircraft Developer
Lead Programmer at the it0uchpods Design Group
Download High Quality Aircraft from it0uchpods Hangar

KL-666
Posts: 1609
Joined: Mon Sep 28, 2015 8:42 am

Re: Mixed auto coordination

Postby KL-666 » Fri Nov 25, 2016 2:01 am

it0uchpods wrote:What is the point of auto-coord if you have a twist axis?


KL-666 wrote:The reason for wanting that i stated before: I find twist stick rudder too crude to make all my turns with.


Kind regards, Vincent

User avatar
it0uchpods
Posts: 2121
Joined: Sun Oct 18, 2015 2:47 am
Location: A far corner of my room.
Contact:

Re: Mixed auto coordination

Postby it0uchpods » Fri Nov 25, 2016 3:11 am

This makes no sense. Ailerons for turns, not rudder! ?????????????/

Autocoord is not a yaw damper. It does this

Aileron *0.5 = Autocoord rudder output

So ???
it0uchpods/WTF411

FlightGear Aircraft Developer
Lead Programmer at the it0uchpods Design Group
Download High Quality Aircraft from it0uchpods Hangar

KL-666
Posts: 1609
Joined: Mon Sep 28, 2015 8:42 am

Re: Mixed auto coordination

Postby KL-666 » Fri Nov 25, 2016 3:30 am

Pilots make coordinated turns with aileron and rudder. Autopilot is a bit shabby and acts on aileron only. This is sufficient for shallow turns at high alt.

Kind regards, Vincent


Return to “Hardware Development”

Who is online

Users browsing this forum: No registered users and 1 guest