From: Houston, TX
Also, I dimly recall from somewhere that you are not supposed to dig in your supply units -- 'makes the trucks slower ?', I dunno, but that may also be happening in Larry's example.
I'm sure this is wrong.
And what drove me to make my experiment, was I too wondered if supply units were doing anything. I found out that what you think is supply radius (new rules) is often overestimating it -- remember the 50% density cost, plus terrain and environment costs. So instead of using the documentation's example and placing a supply unit 2*supply radius from a supply point, I try to keep the unit at about 1.5*radius from the point. So far, that seems to be working.
Under new supply rules, the radius is in MPs, not hexes.
As Silvanski pointed out, there's no discernible effect other than HQ-like 50% boost (for adjacent cooperating units) of using supply units.
Silvanski was mistaken. The boost is visible on the map display.
Essentially, if you get the supply unit placed within the [1.5*] radius, ordinary units that would be at 60% of supply without any supply unit, will now be at about 80% (and those at 40% will now be at 60%).
The effect is to reduce the distance from the SP by one supply radius.
BUT where a unit is unsupplied, it is unsupplied even with a supply unit a hex or two away -- those badlands stop 'em cold.
This is correct. Supply Units are not supply sources.
And sadly, Panama, I tried, but I could not get a chain of units working -- they help, but there's no magic relaying of suppply past 1 unit in the chain.