Daniel G Griffiths

US Patent:

20190055012, Feb 21, 2019

Filed:

Jan 25, 2017

Appl. No.:

16/070705

Inventors:

- Stratford CT, US
Daniel A. GRIFFITHS - Woodbridge CT, US
Joshua A. BREON - Lafayette IN, US
Jonathan K. WONG - Trumbull CT, US
Benjamin ISABELLA - Hamden CT, US
Michael Skylar LAWSON - Derby CT, US

International Classification:

B64C 27/473
B64C 27/467

Abstract:

A tail rotor blade for a helicopter includes a blade body defining a longitudinally extending spar cavity, a leading edge forward of the spar cavity, and a trailing edge aft of the spar cavity. Upper and lower airfoil surfaces extend from the leading edge to the trailing edge on opposite sides of the spar cavity. The upper and lower airfoil surfaces define between one another a constant airfoil segment and transition airfoil segments disposed longitudinally adjacent to the constant airfoil segment on inboard and outboard sides of the constant airfoil segment.