Author: Marion O. McKinney
Publisher:
ISBN:
Category : Aerodynamics
Languages : en
Pages : 70
Book Description
When this assumption is made that the rolling motions alone or the lateral and rolling motions may be neglected in the calculations of rudder-free stability, it is possible to predict satisfactorily the characteristics of the long-period (Dutch roll type) rudder-free oscillation for airplanes only when the effective-dihedral angle is small. With these simplifying assumptions, however, satisfactory prediction of the short-period oscillation may be obtained for any dihedral. Further simplification of the theory based on the assumption that the rudder moment of inertia might be disregarded was found to be invalid because this assumption made it impossible to calculate the characteristics of the short-period oscillations.
Experimental Verification of the Rudder-free Stability Theory for an Airplane Model Equipped with Rudders Having Negative Floating Tendency and Negligible Friction
Author: Marion O. McKinney
Publisher:
ISBN:
Category : Aerodynamics
Languages : en
Pages : 70
Book Description
When this assumption is made that the rolling motions alone or the lateral and rolling motions may be neglected in the calculations of rudder-free stability, it is possible to predict satisfactorily the characteristics of the long-period (Dutch roll type) rudder-free oscillation for airplanes only when the effective-dihedral angle is small. With these simplifying assumptions, however, satisfactory prediction of the short-period oscillation may be obtained for any dihedral. Further simplification of the theory based on the assumption that the rudder moment of inertia might be disregarded was found to be invalid because this assumption made it impossible to calculate the characteristics of the short-period oscillations.
Publisher:
ISBN:
Category : Aerodynamics
Languages : en
Pages : 70
Book Description
When this assumption is made that the rolling motions alone or the lateral and rolling motions may be neglected in the calculations of rudder-free stability, it is possible to predict satisfactorily the characteristics of the long-period (Dutch roll type) rudder-free oscillation for airplanes only when the effective-dihedral angle is small. With these simplifying assumptions, however, satisfactory prediction of the short-period oscillation may be obtained for any dihedral. Further simplification of the theory based on the assumption that the rudder moment of inertia might be disregarded was found to be invalid because this assumption made it impossible to calculate the characteristics of the short-period oscillations.
Wartime Report
Author: United States. National Advisory Committee for Aeronautics
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 298
Book Description
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 298
Book Description
Wartime Report
Author:
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 762
Book Description
Reproductions of reports, some declassified, of research done at Langley Memorial Aeronautical Laboratory during World War II. The order of reports does not represent when they were chronologically issued. Reference to the original version of each report is included.
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 762
Book Description
Reproductions of reports, some declassified, of research done at Langley Memorial Aeronautical Laboratory during World War II. The order of reports does not represent when they were chronologically issued. Reference to the original version of each report is included.
NACA Wartime Report
Author: United States. National Advisory Committee for Aeronautics
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 692
Book Description
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 692
Book Description
Index of NACA Reports Having Application to Personal Aircraft
Author: United States. National Advisory Committee for Aeronautics
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 32
Book Description
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 32
Book Description
Index of NACA Technical Publications
Author: United States. National Advisory Committee for Aeronautics
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 1370
Book Description
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 1370
Book Description
Experimental Determination of the Effect of Horizontal-tail Size, Tail Length, and Vertical Location on Low-speed Static Longitudinal Stability and Damping in Pitch of a Model Having 45 ̊sweptback Wing and Tail Surfaces
Author: Arthur Earl Bryson
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 340
Book Description
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 340
Book Description
A Selected Listing of NASA Scientific and Technical Reports for ...
Author:
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 664
Book Description
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 664
Book Description
Technical Note - National Advisory Committee for Aeronautics
Author: United States. National Advisory Committee for Aeronautics
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 1172
Book Description
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 1172
Book Description
Propeller-loudness Charts for Light Airplanes
Author: Harvey H. Hubbard
Publisher:
ISBN:
Category : Charts, diagrams, etc
Languages : en
Pages : 592
Book Description
Calculations of the rotational-noise and vortex noise loudness levels at distances of 300 and 1000 feet have been made for a large number of propellers in forward flight of 50 to 200 miles per hour and for engine ratings of 100 to 300 horsepower. Propellers of two, four, six, and eight blades, diameters of 6, 8, and 10 feet, and rotational speeds of 1000 to 2000 rpm are considered. Calculated results are presented in chart form for convenience of designers of propellers for applications in which loudness is an important consideration.
Publisher:
ISBN:
Category : Charts, diagrams, etc
Languages : en
Pages : 592
Book Description
Calculations of the rotational-noise and vortex noise loudness levels at distances of 300 and 1000 feet have been made for a large number of propellers in forward flight of 50 to 200 miles per hour and for engine ratings of 100 to 300 horsepower. Propellers of two, four, six, and eight blades, diameters of 6, 8, and 10 feet, and rotational speeds of 1000 to 2000 rpm are considered. Calculated results are presented in chart form for convenience of designers of propellers for applications in which loudness is an important consideration.