[Purple Cockpit During Sunset (Fixed)]

While using Enhanced Skyscapes with ActiveSky, the entire interior has a purple tint. Changing the time back got rid of this tint. This started happening after the latest update at the time of this post (version 1.3.1).

 

 

EDIT: This also seems to happen with xEnviro.

 

 

FIXED: This ended up being a coincidence. I recently installed new default sky textures and this affected all aircraft and weather engines. Repairing my X-Plane installation and replacing the sky textures to default fixed this issue.

[Aileron PCU Yellow Symbol on Flight Control Page & PCU Failure Not Resetting Properly]

16 minutes ago, Graeme_77 said:

That’s interesting. Was seen once in testing, but was unable to replicate despite many attempts. If you get it again, steps to reproduce (if you can remember) would be helpful to try and diagnose.

And to be clear, to fix you shutdown the Challenger avionics and power, or reloaded via X-Plane? 

If it happens again, I'll try my best to give steps to reproduce, but I'm honestly not sure how I did this. The only way I can reproduce this is to manually set a PCU jam failure and reset that failure through the failure menu.

I restarted X-Plane and that removed the CAS message associated with the failure menu, but not the indications on the synoptics page. To remove the entirety of the failure (CAS and amber synoptics), I had to shut down the aircraft fully, removing AC and DC power. Once I powered on the aircraft again, I had normal indications on the flight controls synoptics page.

[Aileron PCU Yellow Symbol on Flight Control Page & PCU Failure Not Resetting Properly]

After shutting down the airplane completely and restarting it, everything seems to be normal.

[Aileron PCU Yellow Symbol on Flight Control Page & PCU Failure Not Resetting Properly]

When I pulled up the flight controls synoptics page, I noticed a yellow symbol on my right aileron. No failures at this point were turned on. As suggested in another post, hydraulics were on and cycled, aileron disconnect handle was pulled and then stowed. My ailerons worked just fine and I had no CAS messages.

I then decided to set failures for left and right aileron PCU jams and tried to reset them to see if maybe that would reset the fault. After resetting the failures however, this only gave me my aileron indications back, but now both sides had the same yellow symbol and the "AILERON PCU" amber CAS message appeared.

To be clear, the ailerons work just fine.

[Climb/Cruise Performance]

As I've learned recently, this is indeed intended behavior with very low TATs. To put it extremely simply, the maximum N2 the engines can achieve is limited with temperature, becoming less as TAT decreases. You can find a graph of the engine fuel control in the "Fuel Control Map" study menu. I believe there will be a graph put into the operations reference showing the maximum *corrected* N2 values for a given TAT. Make sure to keep an eye on the TAT during the climbout and keep the speed up to have an easier time accelerating once you reach cruise.

[Climb/Cruise Performance]

I attempted to climb to FL400 at a 37,000lbs gross weight, but I was well under 100fpm climb at about FL390. This was using a climb profile of 250/M0.72 at -10 ISA. I descended down to FL380 and accelerated to M0.80 with no problem. I decided to climb back to FL400, and I'm managing to maintain FL400, but I'm only able to accelerate past M0.72. This should be possible at this GWT, ISA, and climb profile according to the Operations Reference. I crosschecked this with a CL604 QRH and I'm seeing similar book numbers. I double checked the GWT in the XP default W&B menu and it only differs by a couple hundred pounds. I just wanted to report this to make sure this isn't a bug. Thanks again for the wonderful aircraft!

 

EDIT: I saw the comment Toto made to a similar issue about maximum N2 in regards to TAT. However, it seems that if I disconnect ATS and go to max power, I'm not meeting that close to the maximum N2 shown in the chart. Perhaps this is why I'm struggling to accelerate? I was seeing about 87% N2 maximum when I should be seeing around 90% N2 maximum for the given TAT.