Originally Posted by
iron_jayeh
i don't know the answer too the but does the US have echo below the start height of their instrument approaches?
My understanding is that most of the USA has class E down to either 1200' or 800' AGL. The idea is to provide ATC separation services to IFR aircraft, including during an instrument approach. If IFR separation is not required i.e. VMC, the aircraft can cancel IFR and proceed VFR.