ORIGINAL: Filitch
Filitch,
Aus air power didn't conduct simulations against any specific target, they simply display generic detection ranges in their graphs. In other words, the detection ranges for low frequency (VHF and UHF) radars are not applicable to narrow band stealth aircraft such as the F22. However, they are more applicable to broadband stealth aircraft such as the B2 (and the RQ180 also featured in CMANO). What I did was see where the alleged RCS of the B2 fits into the Aus air power graph. Since I am new to the forum, I cannot post the graph or the links to the Aus air power site, but you can search "low frequency radars aus air power" or something similar in a search engine and it will provide you with a link. As for the sources that list the B2's RCS, there is global security and a number of authoritative books on aerospace engineering. They do not specify from which angle though, but I'm guessing its from the frontal aspect since that is where the aircraft is supposed to be the least detectable. As for altitude, again there is no specification since it is highly classified.
In the simulations I conducted in CMANO I has the aircraft bearing directly towards the aircraft (since it is meant to be the least observable from its frontal aspect). The altitude was high (thirty six thousand feet). The radars I used were the newer Russian Nebo series radars which are active electronically scanned arrays (AESAs). I highly doubt that even advanced Russian radar systems (and similar Chinese radars) can detect a broadband stealth aircraft at 50 to 55nm.
Also, I had a SA3 site detect a B2 at approximately 15 to 16nm. Yet, during Operation Allied Force in 1999, B2s were utilized to take out fixed Yugoslav SAM sites (back then they could only carry unguided munitions and GAMs/JDAMs), so we are talking about ranges of less than 10 to 12nm (assuming they were dropped from high altitudes).
