Visible Distances

Some years ago I composed from different manuals, regulations, books a list with distances a plane will be visible to a pilot of the other plane. Of course it is the very averaged values because very much depends on the pilot sight, weather, the observation angle and so on but anyway. Later I lost that list somewhere, and now decided to recollect it. Here is what I can only remember a little:

Piston engine fighter – 4000 km
Jet fighter 5000 km
Piston engine bomber – 12000 km
Jet bomber – 16000 km

Does anyone any idea about it?

umm.. meters maybe? not kilometers.

btw: noticed your post in the EAW forum..
If your looking for the view distances in EAW they vary by ,exe and modifications. There are long, medium and short range graphics for the planes.
Some like 1.28e and some scenarios actually need the middle range graphic replaced due to a mix-up. See the EAW forum for any questions / links.

Oh, it's not just about the EAW! Firstly, there are another games where we can do some kind of manipulations with this parameters. Here is that I can remember offhand- Lock on, Il2 shtormovik (with the daidalos team patch), strike fighters. And secondly, I'm interested in this subject on its own.
Yes, not km but meters, of course.