This issue of International Edition is presenting the papers-meditations, reviews, author’s visions on perspective, nearest-term and long-term; the actual trends of development in aviation and aerospace Science and Technology; the analysis of concrete scientific-designer’s researches and elaborations.

Our authors are known professionals, qualified specialists, high-class eruditors-analysts, designers, managers.

Paul Werbos, Division Head of NSF, Co-Director of NSF Program “Control, Networks and Computational Intelligence”, First President of the International Neural Network Society; he presents the recommendations about ways and perspective trends of Russian-American cooperation for advancement to realization of scientific-designer’s projects bordering on fantasy.

V.A.Kataev, experienced designer-researcher of aviation and rocket systems, is offering analytical material with interesting concrete proposals and scientific-designer’s elaborations on the global problem of aerospace transportation means creation.

V.A.Menshikov, Head-Director of well-known Scientific-Research Institute of Space Systems of Khrunichev’s Space Center; he is expounding the view point – vision from of Khrunichev’s Space Center on perspectives of Astronautics in 21-st Century.

Donizeti de Andrade, Founder and President (South America and Brasil Chapters, American Helicopter Society); he gives the theoretical analysis of results and recommendations on urgent problem of helicopter-engineering, that is connected with the resonance phenomena and instability in two-bladed rotor construction.

Ignazio Ciufolini, Antonio Paolozzi, specialists in area of Astronomy, gravitational physics, aerospace constructions (Rome University “La Sapienza”, Institute of Space Physics); they discuss new interesting proposals on using laser-ranged satellite for measurements and testing higher precision in Einstein’s theory of general relativity, fundamental physics, geodesy, geodynamics.

V.A.Kostin, Vice-Rector, specialist in area of construction mechanics (Kazan Aviation Institute – KSTU of A.N.Tupolev’s name), presents the results in framework of methods of identification for mathematical modelling problems of mechanical systems in reference to aviation engineering objects.

In information Section of Issue the reports on Scientific Forums are presented:

E.I.Somov, scientific specialist, RAS Institute of Systems Dynamics and Control Theory, gives brief survey about IFAC Symposium on Automatic Control in Aerospace (Seoul’98).

A.K.Medvedeva, scientific specialist, RAS Institute of History of Natural Sciences and Technology, introduces to analytical review about 23-rd Scientific Conference on Astronautics (Moscow’99).

V.I.Naumov, Professor, Dean, Kazan Aviation Institute – KSTU of A.N.Tupolev’s name, presents the information about National Scientific Conference “Heat Engines in 21-st Century: fundamental problems of theory and technology” (Kazan’99).

The published materials, that have a bit discussion, maybe disputable, character, are the fruits of prolonged meditations. The main aim here is to attract the attention of State Level Leaders, Head-Managers of great Com-panies, Scientists-Designers in domain of aviation and aerospace Science and Technology to the actual trends.