Although it's nice to be called a Captain, I'm afraid it's going to be a while until I qualify for first officer. 8-)
I have been flying around in the lovely 737 classic almost as a VFR aircraft. It flys beautiful like that by the way.
But that's not what it's supposed to do and I'm starting to go further with the auto pilot, without FMC at the moment. (I'm getting crashes but that is another issue to be dealt with separately).
I'm noticing that in good weather at, for example a stable FL 200 with airspeed of 200 in level flight if I change the airspeed to 220 I get a flashing 0 indicator next to the indicated speed and the airspeed seems limited to somewhat less than I require. If I take manual control I have quite a bit of power left and can build the speed, switch back to auto throttle and I get the same behaviour within a few minutes. I'm feel sure I'm missing something or other.
Thanks for any assistance and advice.