4 ms·

Wait.. does this mean an enemy fighter jet with F-35 level of stealth capabilities can penetrate the US mainland without being detected? I thought US had the a

• sethhochberg 3y ago
  If I'd lost an aircraft with a bunch of classified stealth features, and I perhaps also had air defense systems with a bunch of classified stealth countermeasures, I might be inclined to ask the locals if they've seen the thing in the swamp out back before I did anything that might reveal anything about the limitations of that stealth tech or abilities of the system that could track it.
• azalemeth 3y ago
  In addition to the other comments, it's worth pointing out that (a) stealth aircraft deliberately use radar corner reflectors and other methods to increase their radar signature, reserving "stealthing up" for missions that require it; (b) almost all forms of identifying and locating an aircraft in flight besides radar require it to be transmitting RF (eg ads!) yet the conditions likely to lead to ejection likely lead to a reduction in the ability to do this; and (c) search and rescue in deep water is really really hard as water strongly absorbs and scatters most forms of radiation likely to be used .
• jjk166 3y ago
  That depends on what you mean by detected. Stealth technology shrinks radar signature, meaning all else being equal, a radar pointed at a stealth aircraft will return a substantially weaker signal than for a non-stealth aircraft, particularly at certain wavelengths it's optimized to be stealthy in. Thus a system of radars that might have no gaps a non-stealth aircraft could fly through might have gaps where it couldn't detect a stealth aircraft, or radars with the resolution to accurately locate the aircraft might not be able to distinguish it from background noise. Generally very large, long wavelength radars can detect that a stealth aircraft is present, but can't accurately determine location. The only time an air defense system has ever shot down a stealth aircraft was during the 90s when a Yugoslavian force shot down an F-117, but they relied on the fact that the plane was flying along a known flight route. Under ideal circumstances defense against stealth is theoretically possible, but a system that can reliably defend against stealth under arbitrary conditions is at best impractical. Now that's the case for a radar deliberately set up to try and detect military aircraft flying through some area. The US isn't particularly expecting any foreign nation to fly a small sortie over North Carolina any time soon. Radar coverage in the US is limited; airports have radars that can detect very non-stealthy civilian aircraft a few dozen miles away, and there are many radars at military bases and weather stations and such scattered around, but air traffic monitoring relies heavily on transponder signals for most of the air space. While a foreign adversary probably shouldn't count on the ability to overfly the US completely undetected, we almost certainly would not be able to track it along its flight path. Of course the US does not rely on detecting foreign aircraft to protect against an attack on the mainland, but instead practices a strategy of deterrence.
• MikusR 3y ago
  If the enemy aircraft teleported inside the US then yes. Radars are usually directed across the border.