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Kawasaki OH-1 Eurocpter EC135 EC120 AS354N2 Boeing-Sikorsky RAH-66 Comanche's 
tail rotor photos. 
Eurocopter's ducted tail rotor is called as FENESTRON. 
Boeing-Sikorsky's one is called as FANTAIL. 
Eurocopter AS365N2 
11 blades equally placed. 
Eurocopter EC135 
10 blades unequally placed with staters for noise 
suppression. 
Eurocopter EC120 
8 blades unequally placed with staters for noise 
suppression. 
Kawasaki OH-1 
8 blades unequally placed for noise suppression. 
Eurocopter EC155 
10 blades unequally placed for noise suppression. 
Eurocopter AS365N2 Dauphin 
10 blades unequally placed (optional) same as 
EC155. 
Boeing-Sikorsky RAH-66 Comanche 
8 equally placed blades. 
These Comanche photos were taken by Mr.Eiji Oishi copyrights 
reserved. 
This page is authorized by Mr.Eiji Oishi. 
Don't use these 
photos without his authorization. 
Oct. 10 2002 
May 31 2003 updated 
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