Collection
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7 Matching Results
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Flight measurements of directional stability to a Mach number of 1.48 for an airplane tested with three different vertical tail configurations
Report presenting flight tests to measure the directional stability of a fighter-type airplane over a range of Mach numbers. Testing occurred at two altitudes and used three vertical tails of varying aspect ratio or area.
Date:
October 7, 1955
Creator:
Drake, Hubert M.; Finch, Thomas W. & Peele, James R.
System:
The UNT Digital Library
A theoretical analysis of the effect of engine angular momentum on longitudinal and directional stability in steady rolling maneuvers
From Summary: "The effect of engine momentum on the longitudinal and directional stability of aircraft in steady rolling maneuvers has been investigated. The results presented indicate that the gyroscopic moments produced on the aircraft by rotating engine in rolling maneuvers can have an appreciable effect on the range of rolling velocities for which longitudinal or directional instability might occur."
Date:
October 7, 1955
Creator:
Gates, Ordway B., Jr. & Woodling, C. H.
System:
The UNT Digital Library
Flight Investigation of a Roll-Stabilized Ramjet Test Vehicle Over a Mach Number Range of 2.3 to 2.7
Report presenting a flight investigation on a roll-stabilized ramjet test vehicle to determine engine performance over a range of Mach numbers, a range of fuel-air ratio, and an altitude range. Results regarding engine performance and roll autopilot performance are provided.
Date:
October 7, 1955
Creator:
Kennedy, Thomas L. & Trout, Otto F., Jr.
System:
The UNT Digital Library
Flight experience with a delta-wing airplane having violent lateral-longitudinal coupling in aileron rolls
From Summary: "During a flight investigation of the lateral stability characteristics of a high-speed delta-wing airplane, violent cross-coupled lateral and longitudinal motions were encountered. The maneuver which produced these motions was an abrupt, rudder-fixed aileron roll performed at a Mach number of 0.75 at about 40,000 feet. The motions were characterized by extreme variations in angle of attack and angle of sideslip which caused the airplane to exceed the normal and transverse acceleration limitations."
Date:
October 7, 1955
Creator:
Sisk, Thomas R. & Andrews, William H.
System:
The UNT Digital Library
Flight Investigation of a Roll-Stabilized Ram-Jet Test Vehicle Over a Mach Number Range of 2.3 to 2.7
Report presenting a flight investigation on a roll-stabilized ram-jet test vehicle over a range of Mach numbers from 2.3 to 2.7, a range of fuel-air ratio from 0.038 to 0.050, and an altitude range from 3,000 to 40,000 feet. Results regarding test conditions, engine performance, and roll autopilot performance are provided. The engines operated satisfactorily over the test time and the roll-control system operated satisfactorily at the beginning of testing.
Date:
October 7, 1955
Creator:
Kennedy, Thomas L. & Trout, Otto F., Jr.
System:
The UNT Digital Library
Transonic Flutter Investigation of a Fighter-Airplane Wing Model and Comparison With a Systematic Plan-Form Series
Report presenting an investigation of the transonic flutter characteristics at zero lift of a model of a wing for a new fighter airplane. The characteristics were found to be similar to those of a comparable systematic plan-form series of models described in previous reports. Results regarding visual observations, damping, flutter-speed ratio, and ratio of experimental sustained flutter speeds to reference flutter speeds are provided.
Date:
October 7, 1955
Creator:
Land, Norman S. & Abbott, Frank T., Jr.
System:
The UNT Digital Library
Visibility...How it is Determined and what it Means to the Pilot
This report discusses visibility as it pertains to flying for pilots.
Date:
October 7, 1955
Creator:
United States. Weather Bureau.
System:
The UNT Digital Library