Scimitar Props Quieter Than Expected

Edited by Paul RichfieldBy Paul Richfield April 01, 2000
Experimental three-blade Hartzell ``scimitar'' propellers installed on a Britten-Norman BN2B Islander have yielded noise reductions of up to 7 dBA, surpassing expectations. Britten-Norman attributes the result to improved airfoil efficiency, which allows the same power transfer at reduced engine rpm...

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