List of aircraft (Sy) (English Wikipedia)

Analysis of information sources in references of the Wikipedia article "List of aircraft (Sy)" in English language version.

refsWebsite

Global rank English rank

low place

low place

low place

7,155^th place

aerofiles.com

"American airplanes: st – sz". Aerofiles.com. 2009-11-02. Retrieved 2011-04-08.

cevans.me

Craddock, David A. (1989). Wood, Wire and Calico: A Chronology of Australian Designed Gliders, Sailplanes and Human-Powered Aircraft (PDF) (2nd ed.). Fast Books. pp. 62–63. ISBN 0731683005.