Low-frequency radio waves, such as those used in long-range radio communications, do have the ability to penetrate certain materials, including the outer layers of stealth aircraft. However, the effectiveness of stealth technology is not solely dependent on the ability to block radio waves, but rather on a combination of factors.
Stealth aircraft, such as the F-22 Raptor or the F-35 Lightning II, are designed to minimize their radar cross-section (RCS) by reducing reflections and scattering of radar waves. This is achieved through various means, including the use of specialized coatings, composite materials, and carefully designed shapes that deflect or absorb radar energy.
While low-frequency radio waves may have a greater ability to penetrate certain materials, they can still be affected by stealth measures. The structure and composition of the aircraft, including radar-absorbent materials and carefully shaped surfaces, can help minimize the radar signature and reduce the chances of detection.
Moreover, it's important to note that stealth technology is not meant to make an aircraft completely invisible to radar. Instead, it aims to significantly reduce the detection range and make it more difficult for radar systems to track the aircraft accurately. Stealth aircraft employ a combination of design, materials, and tactics to exploit weaknesses in radar systems and improve survivability in hostile environments.
It's worth mentioning that the effectiveness of stealth technology can vary depending on the specific radar system and the operational scenario. Different radar frequencies, techniques, and detection capabilities can influence the detection and tracking of stealth aircraft. Therefore, stealth technology continues to evolve alongside advancements in radar systems, as both sides seek to gain an advantage in electronic warfare capabilities.