I appreciate it if anyone can clarify a few questions for me regarding separation requiremnts for VFR aircraft requesting practice approach. I don't know if i'm reading the last sentence correctly, 7110 says:
"Where procedures require application of IFR separation to VFR aircraft practicing instrument approaches, standard IFR separation in accordance with Chapter 3, Chapter 4, Chapter 5, Chapter 6, and Chapter 7 must be provided. Controller responsibility for separation begins at the point where the approach clearance becomes effective. Except for heavy aircraft/B757, 500 feet vertical separation may be applied between VFR aircraft and between a VFR and an IFR aircraft."
My understand is once the approach clearance has been given, except for Heavy/B757 i can use 500 ft vertical sep between the practice approach aircraft (which i'm providing standard IFR sep to) and a VFR aircraft, but i still need 1000 ft or 3 miles between the practice approach aircraft and a IFR aircraft, am i reading this correctly?? The last sentence just didn't make sense to me. thank you..