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Archive for March, 2017

Air combat and stealth

Posted by Picard578 on March 11, 2017

Introduction

For a long time, visual detection was the only type of detection possible. But in World War II, two significant advances appeared: radar, as well as radar- and IR- -guided missiles. Until 1970s, these were defeated through jamming and decoys. Early German attempts at building LO aircraft – Ho-229 – never got anywhere, albeit their RAM paint utilization at snorkels and aircraft was noted. In United States, first attempt at reducing the radar signature of aircraft was on U-2, by utilizing RAM paint, but it was not very successful. First actual stealth aircraft appeared in early 1960s – SR-71 Blackbird, which utilized shaping such as canted surfaces to reduce radar signature. In 1970s a second generation of stealth aircraft appeared with B-1A, and also began a programme of development of VLO aircraft. Result of that was diamond-shaped F-117, to soon be followed by B-2. All these aircraft successfully performed against enemy air defenses, but in the case of B-1A and later aircraft, their performance against air defenses was similar or identical to performance of conventional aircraft they were deployed alongside. Fourth generation of stealth aircraft are F-22, F-35, PAK FA, J-20 and J-31. While still stealth aircraft, they sacrifice stealth characteristics for the sake of better flight characteristics, allowing them to match conventional fighters in terms of maneuverability. However, their stealth requirements make them larger and heavier than comparable conventional aircraft, thus sacrificing kinetic performance for the sake of stealth.^1 Read the rest of this entry »

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Posted in technology | Tagged: , , , | 20 Comments »

Defining stealth

Posted by Picard578 on March 1, 2017

Introduction

Word “stealth” has lately become a catchword used to define the weapon – mostly aircraft – as “superior”, with little or no thought as to what the term actually means. Stealth fighters, stealth bombers, stealth ships… even stealth tanks, the craze is in full swing. But how much do these weapons deserve the label? What is stealth? Is merely having low radar cross section enough – as commonly held – to define the weapon as “stealth”? Is USAF stuck on denial that no military advantage lasts forever, or even on denial that it never understood the true meaning of stealth? Every successful use of stealth aircraft had seen them acting as a support of, and being supported by, an array of nonstealthy aircraft – AWACS, standoff jammers etc. Yet USAF is now aiming for an all-stealth tactical fighter force, even though it will make the force less flexible and arguably less capable as well. How stealthy these aircraft really are, and what are their vulnerabilities? Read the rest of this entry »

Posted in doctrine | Tagged: , , , , , , , , , , , , , , , , | 13 Comments »

 
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