Raytheon Technologies Corporation

David Mikol

Sue-Li Chuang

Xuedong Zhou

Brian J Schuler

John Joseph Papalia

Kimberly Pash Boyington

Zhen Wu

Joseph Wieser

Han J Yu

A turbomachine airfoil element includes an airfoil that has pressure and suction sides spaced apart from one another in a thickness direction and joined to one another at leading and trailing edges. The airfoil extends in a radial direction a span that is in a range of 0.46-0.59 inch (11.8-14.9 mm). A chord length extends in a chordwise direction from the leading edge to the trailing edge at 50% span and is in a range of 0.73-0.86 inch (18.6-21.9 mm). The airfoil element includes at least two of a first mode with a frequency of 5133&#xb1;15% Hz, a second mode with a frequency of 8542&#xb1;15% Hz, a third mode with a frequency of 15487&#xb1;15% Hz, a fourth mode with a frequency of 18774&#xb1;15% Hz, a fifth mode with a frequency of 24295&#xb1;15% Hz and a sixth mode with a frequency of 27084&#xb1;15% Hz.

Gas turbine engine airfoil frequency design

Growing community of inventors

East Berlin, CT, United States of America

David Mikol