|
ARCNA442 -> Ship Radar Signatures (8/31/2019 3:46:19 AM)
|
I'm not sure if this belongs in the database updates thread, but I was digging through the database and found some seemingly odd numbers for ship signatures.
First the really weird ones (all signatures are broadside in the E-M bands):
The Indian Talwar and the Russian Grigorovich are basically the same ship - yet the former is 26.8db while the latter is 6.8db.
The Dutch De Zeven Provincien and the Danish Iver Huitfeld are also extremely similar designs - yet the former is 28.4db while the latter is 17.0db.
The German Sachsen is 28.3db while the larger and closely related and larger Baden-Wurttemberg is 17.8db.
Finally, the British Type 26 is 17.8db while the larger and older Type 45 is 9.0db.
But aside from these oddities, the many of the recent generation of European/American/Russian ships appears to have signatures that are far too low. For instance, Horizon in 9.0db, FREMM is 8.2db, and Gorshkov is 7.7db, while the Type 054D is 32.2db, Shivalik is 28.3db, and the Type 054A is 27.6db despite all of them being built around the same time and having similar levels of stealth shaping. Even other European designs are nowhere near as low, such as the above mentioned Sachsen at 28.3db or the Norwegian Nansen at 27.5db.
The American LCS designs also have incredibly low signatures at -0.7db and 0.1db for ships that have few stealth features beyond basic shaping - especially when the extremely stealthy and similarly-sized la Fayette is a massive 15.8db. The American-built Ambassador missile boats are another example at -0.7db when the smaller Chinese Type 022 are 4.0db.
|
|
|
|
