Do Enemy Planes Report your location?
 

Does the game simulate this? In other words, if I get spotted by an enemy plane (or vessel) will they radio my position to other enemy planes or escorts that in turn come looking for me?

Yes. The variable for this is stored in the sim.cfg file:

I'm quoting what Ducimus once wrote with regards to this parameter, and for a Lost contact time setting of 30:

Taken from this post

awesome. Thanks. This makes diving as soon as a plane is spotted more incentivizing. I was never sure if this was modeled correctly.

Probably because if a plane spotted me I dove, waited for it to clear the area and then continued on my way, avoiding any other planes who were on the way to intercept.

This knowledge is especially useful in Destroyer heavy areas,and in Japanese home waters,were there can be ALOT of things within that 30 (or 50 as I have it set to) minute travel distance

They will, but something has to be in the area, an airbase or a vessel, ranges vary with mods, simply groups won't just spawn, so know certain areas can be very dangerous, others not so much so. Formosa is very dangerous for planes to join the hunt and they will do search patterns.

Really want some fun change the lost contact setting to more search time

I once set it to 2 hours and purposly got spotted about 20 miles from Tokyo bay...Bad Idea

One of the many technical difficulties the Japanese faced in the war (as opposed to the game) were poor aircraft radios. The rapid expansion of the Japanese aircraft industry prior to the war hadn't been matched in the field of electronics or the training in it. Often those aircraft equipped with voice radio could communicate only for short distances and frequently were unable to communicate at all due to technical difficulties. As a result a pilot might have to land to report a sub contact rather than radio it in. By that point the contact could be hours old.

Another problem was the Japanese tendency to inflate their successes. All the major nations in WW2 suffered from it, but the Japanese raised it to an art. A Japanese plane that dropped a bomb on a submerging US submarine would invariably report it as sunk, with the result that no other planes or escorts were dispatched to verify the result. The Japanese generally lacked persistence in both their search efforts and exploitation of a positive contact, once made. They were prone to accept the slightest evidence that a submarine had been destroyed and then depart. Many a U.S. submarine owes its escape to this Japanese predisposition to take the most optimistic view.

Seems like Torplexed and I have the same idea when Command told us to do some "Recon"