JayUtah
Penultimate Amazing
Vertical separation is the most common way to deconflict cross traffic, although not ordinarily by such minimums. As I may have mentioned before, military traffic from Hill AFB near where I live (F-22s and F-35s) must cross the northern approach to KSLC routinely to get to its operation area. That's accomplished mostly by vertical separation. If helicopters in the flight corridor are limited to 200 feet, this would help.What sort of fight path in a busy central city location is 200 ft right across a landing path for jets. That's about 30 metres.
Puzzling. I also initially read those as mandatory. The radar track I've seen shows that the helicopter climbed from 200 ft to 400 ft in the final few seconds before the collision. Seems like those should be mandatory, as you suggest.I need to correct this statement. Looking at the legend of the helicopter chart for the D.C. area, the altitudes along the route are listed as recommended maximums, so apparently the helicopter pilot has no legal duty to abide by them.