Why do we need to slow down below 260 knots Below 10,000 ft?
It’s a restriction in real life in America at least I think. It’s also to limit the speed aircraft can be at around a lower altitude. This is to prevent an arriving 737 flying a cruise speed which can mess up an arrival flow as well. Highly suggest to visit the link below on a more detailed answer.
Is it the noise rule over populated areas?
And mostly for safety reasons
Ok that makes sense