McDonnell Douglas MD-11 Development

[Octal450]

Started PW FADEC/Engines, so can get them working as fast as possible. I have less data but will figure it out

I will simulate the 4460 60k's, then add the option to derate to 60k later.

Kind Regards,
Josh

[Octal450]

Hi!
PW FADEC and reversers are done and pushed.

Some talk:
Calculated limits, expressed as N1 cause that's what my calculations outputs (data would be better... but I don't have for either engine so I calculate)

This gets converted to EPR using the same custom calculations the engines themselves have (as JSBsim's default calculation is stupid) (I refine it a bit further later)

Then the thrust limits are clipped and rounded, because the real -11 uses roudned limits, and then the active limit is selected by the selector

Then the active limit EPR and idle EPR limit get converted back into N1, which gets normalized into throttle min/max clamp... and then finally we have limits... LOL

Wheras GE: Calculated limits get rounded, clipped, and active selected, then active and idle are normalized into min/max clamp... ez

Anyways enjoy, and don't be surprised if I tweak things soon though.

Remember also that PW reversers are powered hydraulically not pneumatically like GE. If you lose hyd, the respective reverser fails and gets stuck. FADEC will command only idle thrust.

Kind Regards,
Josh

[Octal450]

Small thing: animated the tillers

Kind Regards,
Josh

PS: Starting a college class condensed in a few days in order to prepare for going off to college in August... thus my updates for the next month will be less big and less frequent.

Kind Regards,
Josh

[Octal450]

Fixed a bug where the AFS might rapidly switch between T/O CLAMP and CLB THRUST modes if you do "weird stuff"

Fixed rollover of the EPR and N1 on the EAD, and fixed rounding issues.

Kind Regards,
Josh

[Octal450]

Hi
Just pushed an improvement to the aerodynamics improving the rotation behavior.

Kind Regards,
Josh

[Octal450]

MD-11 now support seperate tiller axis from rudder, and if not using that, the way the rudder is mixed from pedal and tiller command is FAR better and matches the FCOM now.

The value is /controls/gear/steering and it can be switched on via a saved setting in Aircraft Config.
Here is an example binding from my racing wheel that i use:

Code: Select all

  <axis>
    <desc type="string">Tiller</desc>
    <dead-band>0.03</dead-band>
    <binding>
      <command type="string">property-scale</command>
      <property type="string">/controls/gear/steering</property>
      <factor type="double">1</factor>
      <offset type="double">0</offset>
      <power type="double">1</power>
    </binding>
  </axis>

This property I've been told is the standard one for making tiller seperate, so it will probably work in any plane that supports split tiller (ex. A320-family)

In addition AFS now only controls the pedals amount of deflection, (10deg) regardless of if this setting is on or off.

And the tiller in the cockpit is animated properly.

The aileron drives tiller system (for auto-coordination users, as we kill auto-coordination) still works as expected with this new system.

Kind Regards,
Josh

[Octal450]

The plane in this picture has some special Work In Progress stuff on it

Kind Regards,
Josh

[Octal450]

Autobrake refactored totally and autospoiler improved. Now RTO works as well, and the Landing Modes MIN MED and MAX. The Disarm logic is there as well, only the light needs to be added to the VC and then it will work. Like the real plane, ABS starts once the spoilers go out either manually or automatically. There is a 3 second delay for nose gear touchdown in MIN and MED modes, MAX is only 1 second. RTO modes do not have a delay. Under 80kts, the spoilers will only deploy once 2 or 3 reversers are deployed, and the ABS will use RTO MIN. 80kts and over, the spoilers go out once 2 of 3 throttles are at idle, and the ABS will use RTO MAX. ABS In Landing mode requires flaps 28 or greater, or else it will not activate.

- The Go Around button will disarm ABS.
- Brakes over 40% in MIN and MED, and 90% in MAX will disarm ABS
- Throttling up will disarm ABS
- Loss of FCC power or FCC failure will cause autospoiler and autobrake to do nothing.
- Retracting the spoilers will stop ABS braking, but not disarm it. Putting back spoilers will continue ABS braking.

The brakes also now require hydraulic pressure and are refactored. Finally no more of that stupid generic brake interpolate() (who thought that was a good idea?) I will make the brake pressure indicator work soon.

Kind Regards,
Josh

[Octal450]

Hi.
Just fixed weird lighting stuff on the pedestal.

Before:


After:


Same problem fixed on the Compass and Brake Panel too

Kind Regards,
Josh

[Octal450]

Trying to make the CRTs look better with some shaders...




I know it doesn't look like CRT too much, but its better. the MCDU will get a similar shader when I bring it too life, and the IESI will get an LCD shader as it is an LCD and not a CRT.

Kind Regards,
Josh

[Octal450]

Added a new option to ACCONFIG.


If you don't like/have problems with the joystick throttle override in CLAMP modes, you can change the setting here to "Never" and when ATS is on, the throttle will never be overwritten by your joystick.

(Pls note! I recommend you leave it on the default "Only In Clamp" as this is the most realistic!)

Kind Regards,
Josh

[xcvb]

Some time ago, I developed a CRT shader for the Do328, which consists of barrel distortion (simulating the curved surface of the display), scan lines, flickering (annoying, maybe this should be removed), reduced contrast and a black frame (area that the cathode ray cannot reach). If you're interested, we could try to make it a little more generic for use in other aircrafts.

[Octal450]

The ABS Disarm lights are now added! So that you can see it! In addition the Annunciator Test button now tests the master caution/warning, and the ABS Disarm lights. Soon it will also test the FCP, and the DUs.

Hi xcvb... sounds great, is same one on Discord? Maybe we can chat there about it.

Thanks!

Kind Regards,
Josh

[Octal450]

Fixed some graphical glitches




All fixed.

Kind Regards,
Josh

[Octal450]

The N2 spool rates are fixed, they were too fast compared to N1 before.

In addition, fixed the cranking and starting up rates so that it takes as long as IRL to start up. I will begin overhauling the ignition/engine start and APU systems shortly, much more detail, and much more better. Less shit code.

Then the last thing to refactor will be the IRS, and some of the canvas DU IO and then we can begin adding more new things! (FMS, Systems Display comes to mind )

The systems are already extremely advanced and I can't wait for you to be able to see them on the systems display in action!

Kind Regards,
Josh