Ok.....this is a strange one but it's happened on 3 different flights now.  I have also had successful flights in between.  Anyway I am happily climbing to FL400-420 and at various altitudes above FL180 the airplane will suddenly stall and then enter an uncontrollable spin that I can't get out of.  It causes me to end my session and get really pi$$ed off!  When climbing I am using FLC mode and climbing around 190-200 kts.  I'm not step climbing and I am close to Max takeoff weight.  I thought maybe I was having "icing" even though I was in clear air because I wasn't turning on the Engine Anti-Ice when the master caution light went off.  So I tried using the anti-ice even though it wasn't needed which stopped the caution light but I still had the stall/spin issue. 

My latest flight I made it to FL400 and leveled off for about 15-20 mins.  I had an 80+ knot headwind (real weather) and was only getting around 190 kts indicated (300 kts ground speed) because of the head wind.  As I am cruising along the airplane suddenly started its spin and went into out of control flight.  So much for me getting this flight in tonight!  Ugh!!!

I have not seen this issue reported anywhere and I'm just wondering if anyone has had anything similar?  I sure do miss my Eaglesoft Citation X in P3D now that I've moved to version 4.  A new biz-jet from them can't come soon enough!

Brandon

Apart from the wrong engine anti caution (typical Carenado bug), I don't think that there's anything wrong with the CJ2.

Sounds more like a real weather issue to me.  There are a lot of addon planes that don't really work with real weather.

Since the stall speed is higher than 100kts and you had an 80kts headwind a temporary loss of the headwind component can easily cause a stall and departure from controlled flight.

That said, AFAIR the CJ2 can be recovered from a spin with the standard spin recovery. method

9 hours ago, J35OE said:

Apart from the wrong engine anti caution (typical Carenado bug), I don't think that there's anything wrong with the CJ2.

Sounds more like a real weather issue to me.  There are a lot of addon planes that don't really work with real weather.

Since the stall speed is higher than 100kts and you had an 80kts headwind a temporary loss of the headwind component can easily cause a stall and departure from controlled flight.

That said, AFAIR the CJ2 can be recovered from a spin with the standard spin recovery. method

Thanks for the reply.  That lines up with some of my other thoughts as well.  I am going to try tomorrow when hopefully there is not that much of a headwind.  Unfortunate that this may be the case because that's not realistic at all.  But it is a sim so I digress....

As far as recovering with the standard spin recovery.....I tried that for thousands of feet.  It was uncontrollable.  I used nose down attitude and opposite rudder to no affect.  A few times it would stop spinning but it would not build up any airspeed even though it was completely nose down.  After it stopped spinning and was nose down it would start to spin again as if I was still in a nose high stall.  It was very strange.  The only other reason I thought it was not real weather was because I didn't have much of a headwind on one of my other flights last week when this happened.  But as you said if the component changed it wouldn't take much I guess.  I did just do the latest Active Sky update and I wonder if there is a bug introduced.....

Brandon

That's really weird. Tried to get the CJ2 to spin but even with an aft CG and the trim fully nose up the plane recovered immediately after releasing the controls. 

Have you tried it without real weather active?  

2 hours ago, HUSSAR said:

Have you tried it without real weather active?  

I have not tried it without real weather.  I was trying to do one flight from KDFW-KLAX before I make that flight in real life tomorrow.  I work for 24 hours at the fire station today.  Tomorrow morning I have a slim chance to try again before we leave tomorrow afternoon but I want to fly with real weather.  If I am not successful I will try again later this week when I get back home and see if not using real weather changes anything.  The previous flight where this happened was CYVR-CYWG.  Interesting on the spin recovery because it did not work at all for me.

Brandon

Was the AP disengaged when you tried to recover and if yes, have you tried to use full nose down trim? 

Thrust idle?

 

AP was disengaged and I did use idle throttle but I did not adjust the trim.  I'll see what happens....

If the wind direction and the speed drops the AP will try to maintain the altitude by trimming the plane nose up.

In case of a severe speed loss the trim will be fully nose up.

This wouldn't change the pitch authority IRL on the CJ2, but it does unfortunately in FSX/P3D due to the somewhat strange trim simulation.

Had the same issue again climbing at 230 kts out of LAX last night and this time I was down near 10,000-15,000 ft.  Had a tailwind too.  I was climbing and all of the sudden the airplane pitched up and started rolling.  Never could recover.  Tried adjusting the nose trim and all spin recover techniques.  Ugh....what a pain in the rear getting everything going for a flight only to have that happen.  Maybe time for something different to fly.....the winds were not that bad at all so I don't think real weather had anything to do with it this time.

Brandon