This article will very briefly indicate some current topics and developments in the field of cognitive engineering (CE), knowledge engineering (KE) and knowledge management (KM). From there, it will present an extensive look at the development and usage of new Dephi model, starting with its origin in the 1980's and later, its successful usages with modifications into the early 2000's. An effort will be made to show how that new Delphi, called the small-group Delphi paradigm (SGDP), can now be again modified to take advantage of expansions in the field of KE/KM and of the great strides in communication and computer technology. Next, an example of how such an up-dated, modified SGDP could be applied to a current, serious problem in aviation, as well as an indication of other issues for which this new Delphi also could provide useful results.