Point-in-space approach
Point-in-space approach. A type of helicopter instrument approach procedure to a missed approach point more than 2,600 feet from an associated helicopter landing area.
I consider and instrument approach in an airplane that ends in a circle to land a close cousin to a point in space approach. You fly an approach that takes you down to a higher than straight in minimum. When you break out, you are required, due to winds or traffic, to circle to a different runway that does not have an instrument approach . I have done these types of approaches at KMDW (Chicago-Midway) and KLGA (New York-LaGuardia). In both cases the landing runway is around 90 degrees difference in heading from the approach flown. Also in KSTL (St Louis) they have an approach that brings you down on a considerable offset of th runway so they can run simultaneous approaches. (The runways are too close together to have simultaneous approaches bringing both straight in.) In this case, the offset approach brings you to mins well off the runway centerline. Once you reach mins you have to aggressively get aligned because the minimums are fairly low and you have to remain on the approach to the mins regardless of when you see the runway, thus allowing the simultaneous operations. Food for thought.
Cheers