Issues that some users have emailed us about.
USING SIMBRIEF:
Please use the BravoAirspace 787 AIRFRAMES.
CLICK HERE FOR A NAVIGRAPH TUTORIAL:
My 787 pitches up when I take off:
That’s part of the Pitch Trim Compensation system within the Boeing 787’s fly-by-wire architecture, governed explicitly by the Primary Flight Computers (PFCs). The 787 doesn’t use traditional “auto-trim” like Airbus aircraft but instead employs a system where the PFCs automatically adjust elevator and stabilizer trim to maintain pitch stability based on airspeed, thrust changes, flap configuration, and bank angle.
Here’s the key concept:
✈️ Trim Speed Logic — The 787 uses a concept called trim speed, which is the airspeed at which the aircraft will maintain its current pitch attitude without pilot input. If the actual airspeed is higher than the trim speed, the system adds nose-up force to slow the aircraft. If it’s lower, it adds nose-down force to speed it up.
This system:
Minimizes pilot trim inputs during flight
Automatically compensates for configuration changes (like flaps or gear)
Helps prevent tail strikes during rotation
Keeps the aircraft in trim as long as airspeed remains constant
So when the nose stays up without manual trim input, it’s the PFCs managing pitch trim via trim speed logic—not a conventional auto-trim, but a more nuanced, speed-sensitive system.
My cockpit screens are always off, no matter my GPU and battery activity.
Make sure that the AVIONICS binding is not bound to any hardware or key on your apparatus.
I keep getting constant stutters.
Utilize the optimized version of the aircraft. Each livery has a no-cabin version complimented with low resolution textures.
Close all your apps/games and restart the console.
Remove real-world traffic and ground aircraft.
Set resolution to maximum 1080p 60fps vs 4K 120fps.
Unable to input ZFW:
The Dreamliner systems have limitation on their weight. Becareful if your system is in for ex: LBS and on Simbrief KG or vice-versa.
AAU2 - 787 - Can't insert ZFW higher than 192 tonnes - User Support Hub / Aircraft & Systems - Microsoft Flight Simulator Forums.
“Trim is bad on your plane:” Not really. The Boeing 787 doesn't operate like… a 737 or a Cessna,.
I’m quoting Matt from Working Title, developer who improved the 787 systems for Microsoft.
He says on a reddit post:
”For everyone here, this is not a bug. 🙂
The 787 fly-by-wire is not like the Airbus. You must trim the plane like a conventional aircraft, so you must continuously trim as you change speeds.
However, the pilot does not control the physical trim, except on the ground. Instead, pushing the trim switches adjusts what is known as the trim speed. The trim speed is the indicated airspeed at which the aircraft will hold current attitude with no pitch up or down forces added. If your trim speed is below your current airspeed, the system will add nose up force to try to reduce your airspeed. Similarly, if your trim speed is above your current speed, the system will add nose down forces to try to increase your airspeed. The trim speed is not displayed anywhere, you must use the trim switches by feel, like a conventional controls aircraft.
The system will then modulate the actual physical trim on its own. The system first uses elevator to affect these forces, but then rolls in trim to reduce elevator load to a minimum. You will see the trim and elevator change without pilot input as you accelerate or decelerate away from the trim speed.
When you take off, the trim speed is set to V2, which is quite low. So, as you accelerate in the initial climb phase, you can be extremely high above the trim speed and therefore get a lot of pitch up force from the system. The solution to this is to trim nose down (increasing the system trim speed) to reduce the required force load.
Hopefully that makes sense!”
source:
What am I doing wrong with the 787 - auto trim. : r/MicrosoftFlightSim (reddit.com)
The plane was installed in my premium deluxe flight simulator but I don’t see the cockpit:
Make sure to restart the Flight Simulator after installing the plane.
Cannot see the cockpit?
You need to have the 787-10 installed, which is included with Premium Deluxe.