ORIGINAL: michaelm
Search range actually can vary between AM and PM phases.
The drawing uses the minimum range of the player's max range and the normal range(with/out DTs).
The AM range is based on a 4-hour flight endurance, while the PM phase is to the full range if the plane didn't fly in the AM, otherwise the same 4-hour endurance.
[Bit too complicated for quick draw arc solution]
In WITP, this use to be a constant max hex range in both AM/PM phases from memory, based on 1/3 a/c max range and 1/10 a/c cruise speed.
I understand this would be a bit complicated to draw the arcs on the map.
But theoretically if I get this correctly, a PBY which cruises at approx. 100mph would only search out to 200 miles in the AM phase (approx. 5 hexes; which would mean the blue arc would only extend 5 hexes at most)? In the PM phase, the green arc should extend to the number of hexes chosen under the 'Maximum Range' setting for the air unit in its window?