So that means in your favorite late war bomb truck. As you slow down in your climb to the 70 degree point over a wirbel 2-3k below you, it's icon stays lit up for you? Then as you slowly tip over at 0 throttle to get lined up, it's still lit up. Then go to zoom as the icon disappears at 1500 or 1000, and you just gamed the reason for the shortened icon range by managing your throttle.
It would be more honest to extend the wirbel and osti icon range out to 1000-1500 even 2000.
You have assumed those values of 2-3k.............. the point is that as you fly slower stuff is easier to see.
Its easy to fly slow in Storch so it sees stuff more easily
An alternative example would be that at 75IAS you have a vehicle icon range of 2000yards and at 200IAS you have a vehicle icon range of 750yards. If the vehicle is moving then add another 500? yards with a generic GV icon. (you know its a GV but not what type). Unless of course the GV is hidden then there are no icons.
Values would be selected to suit best game play its the principle/mechanism I offer.
The Storch continues to be the spotter of choice, slow attack ac like the JU87G and Hurri2D suited to slower manouvering gain some advantage whilst still operating well within the range of WW & OW's. Bomb laden late war attack AC still have to know where the target is pretty much before they see an icon and if they really want an earlier icon spot then they have slowed to the very edge of their envelope. However if they have developed the skill to do so..... why not be rewarded with a RL consequence.
Performing a chandelle/combat turn to slow your speed is a viable tactic to get a better view of what might be in a target area......... however if you do attempt a 70 degree climb over a WW to slow to better icon range.... for part of that climb you were vulnerable with no or reduced icon.