Please excuse my naivety...
I’m curious how minimum clean speed varies with altitude, say from 10,000ft to SFC, in benign conditions for (a) a small regional jet, and (b) a turboprop.
I understand there are a number of variables but, generally speaking, is there a significant difference in minimum clean speed at 10,000ft compared with 2,000ft for either aircraft type? (I’m interested in approach operations here rather than on departure, if that makes a difference?)