It is well known that helicopter design involves a compromise between many various and different requirements (performance, cost, safety, etc.). One of the most important stages of the preliminary design process con sists of the basic sizing of the vehicle. This stage is usually earned out when very limited data are available, but it has a profound influence on the rest of the design process. This paper summarizes a study of a vast helicopter database that has been collected for the sizing stage of a preliminary design process. The study was aimed mainly towards the sizing stages and includes geometry parameters, weight of components, and preliminary power and flight performance estimation. The analysis has been carried out using an advanced computerized correlation technique which is based on multiple regression analysis that may incorporate a large number of independent unknowns. The results are founded on a database for more than 180 helicopter configurations which has been created using data from a range of open sources and is focused on conventional single rotor helicopter configurations. As opposed to first order and relatively simple analyses which are typically used in the first preliminary stages, this paper exposes correlations and design trends in existing flying configurations, and therefore contains many other practical engineering constraints that emerge only in later stages of the design process.
Helicopter sizing by statistics
Hubschrauber-Dimensionierung durch Statistik
Journal of the American Helicopter Society ; 49 , 3 ; 300-317
2004
18 Seiten, 37 Bilder, 19 Quellen
Article (Journal)
English
Helicopter Sizing by Statistics
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