Drag or negative traction of geared-down supporting propellers in the downward vertical glide of a helicopter / by A. Toussaint.

Format:

Book

Government document

Author/Creator:

Toussaint, A., author.

Contributor:

United States. National Advisory Committee for Aeronautics, issuing body.

Series:

Technical note (United States. National Advisory Committee for Aeronautics) ; 21.

Technical notes / National Advisory Committee for Aeronautics ; No. 21

Language:

English

Subjects (All):

Drag (Aerodynamics).

Rotors (Helicopters).

Physical Description:

1 online resource (5 pages)

Place of Publication:

[Washington, D.C.] : National Advisory Committee for Aeronautics, 1920.

Summary:

This translation explores the mathematics of the drag and thrust for lifting surfaces of a helicopter rotor in vertical descent.

Notes:

Title from title screen (viewed June 20, 2019).

"September, 1920."

"Resume translated from the French by the Paris Office, N.A.C.A."

"Paper read by M. Toussaint, Engineer of the Aerotechnical Institute of the University of Paris, (St.-Cyr l'Ecole), before the Scientific Commission of the Aero Club of France, January 24th, 1920"--Page 1

No Federal Depository Library Program (FDLP) item number.

Print version record.

Other Format:

Print version: Toussaint, A. Drag or negative traction of geared-down supporting propellers in the downward vertical glide of a helicopter

OCLC:

1105632597