The effects of fuel sloshing on the lateral stability of a free-flying airplane model

The effects of fuel sloshing on the lateral stability of a free-flying airplane model

Date: June 29, 1948
Creator: Smith, Charles C., Jr.
Description: None
Contributing Partner: UNT Libraries Government Documents Department
Static directional stability of a tandem-helicopter fuselage

Static directional stability of a tandem-helicopter fuselage

Date: August 9, 1950
Creator: Smith, Charles C., Jr.
Description: None
Contributing Partner: UNT Libraries Government Documents Department
Dynamic Stability and Control Characteristics of a Delta-Wing Vertically Rising Airplane Model in Take-Offs, Landings and Hovering Flight

Dynamic Stability and Control Characteristics of a Delta-Wing Vertically Rising Airplane Model in Take-Offs, Landings and Hovering Flight

Date: October 9, 1951
Creator: Lovell, Powell M.
Description: None
Contributing Partner: UNT Libraries Government Documents Department
Dynamic stability and control characteristics of a vertically rising airplane model in hovering flight

Dynamic stability and control characteristics of a vertically rising airplane model in hovering flight

Date: February 1, 1951
Creator: Bates, William R.
Description: None
Contributing Partner: UNT Libraries Government Documents Department
Additional Studies of the Stability and Controllability of an Unswept-Wing Vertically Rising Airplane Model in Hovering Flight Including Studies of Various Tethered Landing Techniques

Additional Studies of the Stability and Controllability of an Unswept-Wing Vertically Rising Airplane Model in Hovering Flight Including Studies of Various Tethered Landing Techniques

Date: November 6, 1951
Creator: Bates, William R.
Description: None
Contributing Partner: UNT Libraries Government Documents Department
Effect of the proximity of the ground on the stability and control characteristics of a vertically rising airplane model in the hovering condition

Effect of the proximity of the ground on the stability and control characteristics of a vertically rising airplane model in the hovering condition

Date: September 19, 1951
Creator: Smith, Charles C., Jr.
Description: None
Contributing Partner: UNT Libraries Government Documents Department
Take-Off and Landing Characteristics of a 0.13-Scale Model of the Convair XFY-1 Vertically Rising Airplane in Steady Winds, TED No. NACA DE 368

Take-Off and Landing Characteristics of a 0.13-Scale Model of the Convair XFY-1 Vertically Rising Airplane in Steady Winds, TED No. NACA DE 368

Date: June 22, 1954
Creator: Schade, Robert O.
Description: An experimental investigation has been conducted to determine the stability and control characteristics of a 0.13-scale free-flight model of the Convair XFY-1 airplane during take-offs and landings in steady winds. The tests indicated that take-offs in headwinds up to at least 20 knots (full scale) will be fairly easy to perform although the airplane may be blown downstream as much as 3 spans before a trim condition can be established. The distance that the airplane will be blown down-stream can be reduced by restraining the upwind landing gear until the instant of take-off. The tests also indicated that spot landings in headwinds up to at least 30 knots (full scale) and in crosswinds up to at least 20 knots (full scale) can be accomplished with reasonable accuracy although, during the landing approach, there will probably be an undesirable nosing-up tendency caused by ground effect and by the change in angle of attack resulting from vertical descent. Some form of arresting gear will probably be required to prevent the airplane from rolling downwind or tipping over after contact. This rolling and tipping can be prevented by a snubbing line attached to the tip of the upwind' wing or tail or by ...
Contributing Partner: UNT Libraries Government Documents Department
Stability and control flight tests of a 0.13-scale model of the consolidated-Vultee XFY-1 airplane in take-offs, landings, and hovering flight : TED No. NACA DE 368

Stability and control flight tests of a 0.13-scale model of the consolidated-Vultee XFY-1 airplane in take-offs, landings, and hovering flight : TED No. NACA DE 368

Date: October 1, 1952
Creator: Lovell, Powell M., Jr.
Description: None
Contributing Partner: UNT Libraries Government Documents Department
Flight Investigation of the Stability and Control Characteristics of a 0.13-Scale Model of the Convair XFY-1 Vertically Rising Airplane During Constant-Altitude Transitions, TED No. NACA DE 368

Flight Investigation of the Stability and Control Characteristics of a 0.13-Scale Model of the Convair XFY-1 Vertically Rising Airplane During Constant-Altitude Transitions, TED No. NACA DE 368

Date: January 1, 1953
Creator: Lovell, Powell M., Jr.
Description: An investigation is being conducted to determine the dynamic stability and control characteristics of a 0.13-scale flying model of the Convair XFY-1 vertically rising airplane. This paper presents the results of flight tests to determine the stability and control characteristics of the model during constant-altitude slow transitions from hovering to normal unstalled forward flight. The tests indicated that the airplane can be flown through the transition range fairly easily although some difficulty will probably encountered in controlling the yawing motions at angles of attack between about 60 and 40. An increase in the size of the vertical tail will not materially improve the controllability of the yawing motions in this range of angle of attack but the use of a yaw damper will make the yawing motions easy to control throughout the entire transitional flight range. The tests also indicated that the airplane can probably be flown sideways satisfactorily at speeds up to approximately 33 knots (full scale) with the normal control system and up to approximately 37 knots (full scale) with both elevons and rudders rigged to move differentially for roll control. At sideways speeds above these values, the airplane will have a strong tendency to diverge uncontrollably in ...
Contributing Partner: UNT Libraries Government Documents Department