Hi

I am flying at 11, 000 ft and the speed display is showing a flashing 8 or B before my current speed "8340" and I cannot increase my speed . I am a bit new to this, can anyone please explain ?

 

 

This is a warning that you're too fast. You can see right down on your screen cab that 340 kn is right overlapping the beginning of the red zone of your speed tape.

340 knts IAS is an unsafe or unachievable speed at that altitude and or aircraft configuration. B=Below , need to be below that number

Thanks for the quick replies, never knew this plane was so accurate...........