How to get aircrafts external view and airsearch radar q

[commandosolo2009]

Originally Posted by WernherVonTrapp

Early air warning radar would normally indicate the presence of aircraft via a vertical spike on the A-Scope as seen in the pic below:


I have never personally seen (or attempted to see) this in-game. I believe the advent of advanced systems with the PPI would display a blip on the screen much like the surface search radar scope. I don't know/recall if these air warning systems (w/PPI) were ever actually compact enough to place in a fleetboat which may account for the A-Scope's continued use in the subs.

does this mean that both air and surface contacts show on the PPI/Ascope? are they connected? I know the fork looking radar between the shears on the outside view or maybe the bubble maker looking (circular) radar, are the air search type radars.. So, if he says "single contact", I steer the hydrophone to his bearing and nothing sounds, then I keep the radar steady on last bearing he keeps disappearing, would that constitute an air contact? or is it a bug? Thanks Wernher and SS.