Cessna 208 B Gran Caravan stall and speed

Hi there,

I finally bought the beautifull Cessna 208 B Gran Caravan for Cargo shipmenet in career mode.

My first flight it is ruinning while i am writing.

Some issues:

Climb Phase: i got really poor rate of vertical climb…if increase more then 600/770 feet per second I got stalled
Cruise: I cannot reach 140 knots, the plane is like having hard time with power management…the higher I get the worste
AP: Somehow it end up to put the TRIM on 99% and stalling…if I disengage the AP I can recover from the stall but once I set the AP back the plane pitch to much higher stalling again

What am I missing?

Thanks guys…

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Hi @Cannone785341 ,

Thank you for your post! Your topic has been moved to a sub-category of the User Support Hub

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The issue is linked ro Autopilot and trim management…trim at 99% and stall

I experienced the same. I never flew a caravan in real life, so I can’t compare. There are some threads about AP problems with caravan, so they might be related. For me it helped to manually stabilize the aircraft before engaging autopilot, but sometimes it just threw the nose up anyway. Retrimming and turning autopilot off and on again also helped sometimes. There is definitely an issue with it.

I am flying again, without increasing the SimRate, following all the procedure and doing all the checklists.

I will tell you after what’s happening, for now, everything smooth except 3-4 alert of Engine Malfunction (despite I fully checked the plane before)

Nothing..I had to abort the mission.

I spent 3.000.000 to buy, 1.000.000 to repair and now…back to the start. Is this. asort of bad luck???

Huh, well that could be a bug and bad luck. Did you watch the ITT and prop RPM values? You can get the engine malfunction if you have them in red for too long. Even in take off it doesn’t necessarily requires full power and as soon as you are up, you need to reduce a bit the power so everything is green and let it like that. Rather have a slower climb rate than redlining the engine. I usually was able to go around 800-1000ft/m up until like 6-8000 feet and then after gradually reducing the vertical speed to 500ft/m and above 10 000 to 200ft/m. Something like that, but just watching the airspeed and preventing to stall by decreasing vertical speed instead of touching the thrust.

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After repair all is going smoothly. There might be a bug, cause I repaired it before.

After 2 flights…again Engine problem…I aborted this time and went to the technician…money wasted!

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I don’t know, thats really strange. I must admit I never had an engine problem with the caravan and I did about 30 flights with it, so many problem you have seems like some sort of a bug.

Maybe the decent is also something to watch out for, if you lower the thrust too much / too fast the prop RPM goes crazy (there is a bug thread about it), its okay for some seconds, but if you have that much longer it will blow the engine. The caravan needs time till it can be slowed down, lower the thrust always slowly and watch prop RPM, there is a minimum thrust that you still need to have, if you put it in idle, the prop RPM skyrockets.

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Maybe having it full with cargo plays a role as well?

I have never experienced a problem with weight in the missions. It should play a role in the handling I suppose. Maybe there are some missions that overload the aircraft? I am unsure. Fuel does have a weight as well, but I always took off fully loaded with fuel and never had an issue (apart from the slow climb rate). Good point though to check it.

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Same issues.
More over, for the 6 h delivery there is not enough fuel in carreer moder. Discovered too late.
The plane stats seem to be arbitrary.
I checked with wikipedia, the cruise speed for Caravan is 186 nots. This is above the maximum allowed speed for Caravan in MSFS 2024. The ceiling seems to be also an issue.
The thrust just does not work, it is stuck at 1800 rpm basically. Stalls from stabilized flight on autopilot.
The same for other planes, like Pilatus. there the ceiling is 30000 according to wikipedia (ok, not fully loaded, of course). But it is impossible to get it there in the sim, and the air traffic control demands it!
Overall I put MSFS 2024 6 out of 10. Beautiful game but they should have tested it.

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Ok I can give you a bit of help and Welcome to the Community :grinning_face_with_smiling_eyes:

For the ATC you can change the flight plan on your EFB and change the FL. Also the route etc…remember when you change it to send it to the avionic and to file it to the ATC (there are 2 buttons on the legs page)

For the Stall issues, I might thing it’s a problem linked to the mixture leaning, after 7.000 you have to reduce the mixture, as you climb, the air becomes less dense, and the engine requires a leaner fuel mixture to operate efficiently. Reducing the mixture after 7,000 feet helps prevent the engine from running too rich, which can lead to poor performance or even engine issues.

If you’re flying a Cessna 208 B Grand Caravan, for example, this adjustment is particularly important to ensure a smooth climb and optimal engine performance. If you’re experiencing issues with stalling or poor climb rates, it might be related to improper mixture settings.

Are you flying in a simulator or in real life? If it’s in a simulator, I can offer more specific tips based on the aircraft model you’re using.

Is the prop pitch set correctly? Is the mixture set correctly?
As for ATC demanding you to climb to those altitudes, it’s not game’s fault, unfortunately. When you start a mission a flight plan is sent to ATC and if you don’t change flight level beforehand, that’s what ATC is basing their decissions off. For example due to pc-12 bug with pressurized cabin you have to change the flight plan to cruise at max fl180 and send it to atc, otherwise they will tell you to climb higher. Some missions are predefined for pc-24 and they have default fl440 so if you plan to fly it in pc-12 or 408 you just won’t be able to reach those altitudes.

I did several medium cargo missions in the Caravan and the fuel is more than enough if you don’t run the engine at full power the whole time. I normally cruise around FL120 with 1400 ft-lbs and 1900 RPM, which gives me a TAS of about 160kn and a fuel flow of 380pph. This is more than what’s written in the POH, but still good enough. Using a full tank of 2270lbs, this gives you 6 hours cruising time, but those “6 hour mission” only takes about 3,5 to 4 hours cruising. I even did not top my tank, to lower the takeoff weight (which is then still way too much, but not that much anymore), and still always arrived with more than half an hour flight time remaining (I did a fuel calculation to get the needed fuel for the planned route, and it always worked).

The thrust does not control the RPM, you use the prop lever for this. But you can leave it full forward for 1900 RPM, lower RPM is only really needed for lowering the noise level, but gives a slightly lower performance.

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