I was flying the A339 at FL380 at M0.82 which is exactly what simbrief suggested. All info was transferred directly from simbrief so there’s no mistake there.
I left home then when I returned saw that I’d crashed. At some point my speed reduced, plane pitched up until I stalled, autopilot disconnected and I crashed.
Unfortunately can’t see wind speeds on replays but on the weather app it doesn’t look bad at all (30-40kts headwind at most)
Before I left I was cruising fine.
Some screenshots of the finals moments if they help.
As said above, it is a bit underpowered. Not the best idea to be gone from your device. In real life, you would step climb to the altitude sim brief gave you.
No this is the cruise altitude simbrief gave me. And the same altitude the real life flight flew to. Flight was fine to begin with then half way through this happens.
I change VS as I get closer but I was comfortably sitting at cruise (FL380) for 30 minutes before I left home. So at one point something happened and the aircraft couldn’t handle it anymore. Makes no sense to me.
For step climbing, try leveling off initially at 34,000 feet. In Infinite Flight, these recommendations help balance realism and performance. While the simulator is more forgiving than real life, following these practices can make your flight smoother and more immersive.
This tends to happen because the wind shifts suddenly and you lose airspeed causing an AoA increase, more drag, and eventually you crash. You simply don’t have the excess engine power when you’re flying on the bleeding edge of the performance envelope.
I’d expect Simbrief to be okay for PC sims but in IF a lot of the planes don’t really match up super well.
Some of them will work fine but some can be a bit off. To be honest, I didn’t think this was an issue with the A339 but what you’re describing sounds like exactly the situation I was talking about. Out of curiosity what was your flight routing?
Vs is relevant. You loose a lot of energy and you stall out and crash by the time you get to your cruise. Just bc it may have looked fine originally, it wouldn’t be in the long run.
I don’t have exact numbers nor do I have access to the A339 anymore but I just Simbriefed it and you would’ve been around 60-65% load on takeoff, meaning that your ideal cruise altitude for efficiency would be most likely FL340. Given this, FL380 is definitely riding the edge for this plane at this weight, so maybe bias 20 flight levels lower than what Simbrief says for now to be safer, I guess it is a bit underpowered.
He said he was stable for 30 minutes. Nothing to do with VS.
Hi, If I had access to your replay file, I’d look for the point in time where the conditions unambiguously started to deteriorate. Usually that is shown by where your forward speed begins to deteriorate beyond recovery.
Heavy for the altitude is typically the case.
Can you possibly get a screen shot of where your forward speed started to fall while at level altitude, or upload a replay?
It isn’t, this is pulled from testing the IF plane itself back when I had a sub. It’s not based on any flight; it’s just the fuel burn at different weights and different flight levels.
