The monographs published in this section provide an in-depth description of the helicopters, reconstructing their history through documentation that has been collected and systematically organized. The profiles bring together information that is often fragmented, difficult to find or, in many cases, previously unpublished, with particular attention to aircraft registered in the Swiss aircraft register and to those that were demonstrated or tested in Switzerland over the years.
Each monograph traces the development of the model and its various versions, illustrating their technical characteristics through specifications, three-view drawings, and descriptions of the engines, transmission, and main systems. Historical photographs, personal accounts, and period documents further enrich the documentation, with particular attention to the helicopter's operations in Switzerland. Where information is available, the history of individual aircraft is also reconstructed through their serial numbers, registrations, operators, and civilian use.
Each profile is complemented by interesting facts, videos, anecdotes, and other noteworthy information, as well as links to external websites offering additional photographs and information.
The monographs represent a true specialized digital library.