Definition
The steepest descent angle, relative to the ground, at which a helicopter is approved to approach a landing point under the conditions and configuration specified in its flight manual.
Plain English
The steepest downward path the manufacturer allows the helicopter to fly when coming in to land.
Context Anchor
Seen in helicopter instrument procedures and Helicopter Flight Manual limitations, especially when checking whether an approach path is approved for that helicopter.
Why Pilots Care
Determines whether a given landing site can be reached safely without violating performance limits or losing obstacle clearance.
Intuition Check
Maximum does not mean the angle a pilot should try to use. It means the upper limit that must not be exceeded.
Example Sentence 1
The pilot reviewed the flight manual and confirmed the planned approach into the rooftop helipad would not exceed the maximum approach angle.
Example Sentence 2
Wind and weight changes can reduce the maximum approach angle available for the landing site.