The dots are the penetration. Im sure on the NACO charts they are listed in the legend, but I don't have a book with me to know for sure.

You fly the depicted routing (bold dots). If you are at an altitude lower than depicted when you start your penetration, you must "fly off" in level flight for 15 seconds for each 1000 feet of altitude. Additionally there are some rules about when you can start the descent and I believe you have to be outbound and abeam. (But don't hold me to that).

I guess a civilian airplane could request the procedure, but I'm not sure why you would want to do that other than for the fun of it. Also, I think these procedures are only listed at military or joint use airfields. I don't think the LGAs and JFKs have them.

Probably the most famous hi-pen is the Roswell Widowmaker http://www.naco.faa.gov/d-tpp/0902/00354HI21.PDF. Imagine doing that in a legacy fighter aircraft, at night, in the weather.

I've flown the widowmaker; but with dual navaids, two pilots, and an FMS, it is easy.

-Fatty