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- Reeds Vol 14: Stealth Warship Technology;
Usually delivered in days? Lavers Christopher. First book to give an insight into a growing area of interest - stealth warship technology - which is crucial for future developments in warship construction. It demonstrates the importance of materials used in warship construction and how this influences all of a naval platform's design parameters.
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Books in the Reeds Marine Engineering and Technology Series series
Share your thoughts with other customers. Write a customer review. Most helpful customer reviews on Amazon. Some of the technical detail is simply beyond me, but this is still an interesting read for readers interested in naval affairs. I simply had no idea of the complex interconnections that enter the equation. There are so many ways a ship can be detected--radar, sonar, satellite tracking, wake, cavitation, reflection. And there are so many variables in making a ship stealthy, so to speak.
These include humidity, temperature, ocean depth and currents, and many other factors. It seems as if stealth technology works well for small ships and if difficult for larger units. No wonder the US Navy seems to be changing to littoral ships. A reader better educated in the technology than I am might benefit more. What I have taken away from this book available at my university library is an appreciation of the very advanced systems a modern navy must master in order to remain effective.
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The programme had the highest level of security; even the buildings where the research team worked had no windows, and only a minimum number of government people knew of the programme. Measuring Stealth James Clerk Maxwell — , a Scottish physicist who conducted revolutionary work on electricity and magnetism, had in the previous century derived various equations that predicted in a clear way how a regular body of a given shape would. Schroeder sketched an aircraft with no curved surfaces at all, except those of relatively small radius, with straight edges to its wings and tail surfaces.
It was as if a diamond had been cut into the crude outline shape of an aircraft, albeit a fairly unaerodynamic looking one. Schroeder took the problem to Denys Overholser, an able software engineer who could think outside of the frame of what already existed. However, it would not be satisfactory to stop with just the output of unvalidated computer models, but in true engineering fashion it required testing to prove the validity of these models. The model was mounted on a 12 ft pole, and the radar dish placed 1, ft away. Apparently, if the anecdotal test reports are to be believed, the site radar operator could not see the model on the radar until a black bird landed right on top of the model.
About Reeds Vol 14: Stealth Warship Technology
The radar detected the bird but not the aircraft scale model! Some introduction needs to be made to the often quoted size of a target on a radar system. Unlike the familiar size of an object that we can see in the visible part of the electromagnetic spectrum and physically measure with a metre ruler, things are not quite so obvious in other parts of the electromagnetic spectrum. A perfectly conducting sphere of projected cross-sectional area 1 m2, that is, diameter of 1. A test aircraft returning twice as much energy as the test sphere would be said to have an RCS of 2 m2.
Any change in these parameters will change the MDR. Generally speaking, wave loss increases with increasing frequency and so MDR will fall. There have been at least six notable incidents of stealth aircraft losses, including a very public black jet loss at the Baltimore air show in September with. Miraculously no one was killed.
Reeds Vol Stealth Warship Technology by Christopher Lavers
The concept of a decoy here is the same as that for luring or enticing a person or animal away from an intended course, typically into a trap. The decoy is designed to provide a more attractive target to the targeting enemy missile. For example, a stealth frigate with a cross section of perhaps 2, m2 broadside on could have a bows cross section when facing the threat of as little as m2. These sort of changes in cross section are often best expressed in engineering notation in terms of decibels: S.
The minus sign in —7. The received radar echo power is nearly 8 dB down compared to the broadside return. Outside of a few people at Lockheed and the Defense Department, no one in fact knew that Have Blue even existed! The two Have Blue aircraft were built at Lockheed in a few months. With so much hinging upon the development of new and as yet unproven stealth technologies, the intention was to design the rest of airframe as conservatively as possible, which also helped to reduce the development time and avoid unnecessary suspicions of what was really going on.
The engines used were a pair of standard General Electric J85s, mounted in the enclosures above the wings. Have Blue aircraft had the same general shape.
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The leading edge of the semi-delta wing was swept back at a daring The wing featured two inboard trailing edge elevons for both pitch and roll control. The problem of designing a stealthy system for airspeed measurement had yet to be solved, but an inertial navigation system provided enough speed data for test purposes when aircraft probes were retracted.
Once committed to its initial attack axis, the plane was locked in to complete its bombing run. However, Lockheed gave each aircraft its own serial numbers, and Pilot Bill Park pulled the aircraft back into the air and tried to shake the gear back down. However, after his third attempt failed, he was ordered to take the aircraft up to 10, ft and eject. Park ejected successfully, but in the process he is reported to have hit his head and was knocked unconscious. Since he was then unable to control his parachute during descent, his. The Have Blue aircraft, incidentally, was destroyed in the crash.
Have Blue arrived at Groom Lake shortly after the loss of Ken Dyson at the controls.
Reeds Vol 14: Stealth Warship Technology (Reeds Marine Engineering and Technology Series)
From the mid to early , Lt Col. Most ground-based missile tracking radars could detect the Have Blue only after it was well inside the minimum range for the surface-to-air missiles with which they were associated could engage. Early FA RAM came in linoleum-like sheets, cut to shape and bonded to the skin to cover large areas. The paints used were and are generally toxic to human and indeed animal species. The aircraft had six skin layers, absorbent adhesives, tapes and putty, and sub-elements of ferromagnetic coatings in a high dielectric plastic.
Dyson was also forced to eject, with the loss of the prototype as well. The result was that within 8 months both aircraft were gone!
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