Originally Posted by
A Squared
It may be that the C-130Qs were built without them, or it could be that they were subsequently replaced with aluminum skins a la the L382, perhaps by Coulson, because sheet metal is less expensive than windows.
It's not quite that clear cut (npi) - as per my earlier post, the first two batches of EC-130Qs (the 1970s deliveries) did have the chin windows, but the last (1980s) batch, includng the ones that went to Coulson, didn't.
David, good response to SPCL's obvious confusion about ADS-B and Multilateration, however, you've stumbled across one of my pet peeves. to wit: "roughly analogous to triangulation" No, it is not. Triangulation is determining positions by measuring angles (usually in the context of surveying, with theodolites) Determining positions by measuring distances, and forming triangles is "trilateration" or if multiple triangles are formed, multilateration. No angles are measured.
Well OK, I should have said "
very roughly analogous".
I'm well aware of the fundamental difference in technique (I did mention TDOA in my explanation, after all). But I still maintain that it's a useful analogy to get across the concept of using a network of ground stations take measurements from a target (whether angle or TDOA) in order to establish its position.
Particularly as I was trying to explain it to someone who was making ridiculous claims for its accuracy.