Search

Search U.S. government technical reports digitized or harvested by TRAIL.

Keyword Search

Enter your search term(s):
[advanced search]

14045 results returned

Search results

• Tables of Stiffness and Carry-Over Factor for Structural Members Under Axial Load
• Wind-Tunnel Tests of a 2-Engine Airplane Model as a Preliminary Study of Flight Conditions Arising on the Failure of the Engine
• Tank Tests of Model 36 Flying Boat Hull
• The N.A.C.A. Optical Engine Indicator
• Gyroscopic Instruments for Instrument Flying
• Free-spinning wind-tunnel tests of a low-wing monoplane with systematic changes in wings and tails 3: mass distributed along the wings
• The drag of inflatable rubber de-icers
• The effect of air-passage length on the optimum fin spacing for maximum cooling
• Effect of spark-timing regularity on the knock of engine performance
• Tank tests of a model of one hull of the Savoia S-55-X flying boat - N.A.C.A. Model 46
• Improvement of aileron effectiveness by the prevention of air leakage through the hinge gap as determined in flight
• A flight investigation of the reduction of aileron operating force by means of fixed tabs and differential linkage, with notes on linkage design
• Hydrodynamic and aerodynamic tests of models of floats for single-float seaplanes NACA models 41-D, 41-E, 61-A, 73, and 73-A
• The estimation of the rate of change of yawing moment with sideslip
• Flight and wind-tunnel tests of an XBM-1 dive bomber
• The effects of partial-span plain flaps on the aerodynamic characteristics of a rectangular and a tapered Clark Y wing
• Spinning characteristics of wings 5: N.A.C.A. 0009, 23018, and 6718 monoplane wings
• Principles involved in the cooling of a finned and baffled cylinder
• A preliminary investigation of boundary-layer transition along a flat plate with adverse pressure gradient
• Operational treatment of the nonuniform-lift theory in airplane dynamics
• Wind-tunnel investigation of rectangular and tapered NACA 23012 wings with plain ailerons and full-span split flaps
• Preliminary Full-Scale Wind-Tunnel Investigation of Wing Ducts for Radiators, Special Report
• The Torsional and Bending Deflection of Full-Scale Duralumin Propeller Blades Under Normal Operating Conditions, Special Report
• Static Longitudinal Stability and Longitudinal Control of Autogiro Rotors
• Wind-Tunnel Investigation of Air Inlet and Outlet Openings for Aircraft, Special Report
• Wind-Tunnel Investigation of an N.A.C.A. 23012 Airfoil with a Slotted Flap and Three Types of Auxiliary Flap
• The Effect of Surface Irregularities on Wing Drag 1 - Rivets and Spot Welds
• The Effect of Surface Irregularities on Wing Drag 2 - Lap Joints
• The Effect of Surface Irregularities on Wing Drag 4 - Manufacturing Irregularities
• The Effect of Surface Irregularities on Wing Drag 3 - Roughness
• Aerodynamic Characteristics of a 4-Engine Monoplane Showing Effects of Enclosing the Engines in the Wing and Comparisons of Tractor- and Pusher-Propeller Arrangements
• Correction of Profile-Drag Results From Variable-Density Tunnel and the Effect on the Choice of Wing-Section Thickness
• The Conversion of Energy in a Radiator
• Full-Scale Wind-Tunnel Investigation of Wing Cooling Ducts, Special Report
• Investigation in the 7-By-10 Foot Wind Tunnel of Ducts for Cooling Radiators Within an Airplane Wing, Special Report
• On the Theory of Hydrofoils and Planing Surfaces
• Comparison of free-spinning wind-tunnel results with corresponding full-scale spin results
• Investigation in the 7-by-10 Foot Wind Tunnel of Ducts for Cooling Radiators within an Airplane Wing
• Wind-Tunnel Investigation of an N.A.C.A. 23012 Airfoil with a Slotted Flap and Three Types of Auxiliary Flap
• The Torsional and Bending Deflection of Full-Scale Aluminum-Alloy Propeller Blades Under Normal Operating Conditions
• Tests of Two Full-Scale Propellers With Different Pitch Distributions, at Blade Angles Up to 60 Degrees
• Tests of Five Full-Scale Propellers in the Presence of a Radial and a Liquid-Cooled Engine Nacelle, Including Tests of Two Spinners
• Annual Report of the National Advisory Committee for Aeronautics (23rd). Administrative Report Including Technical Report Nos. 577 to 611
• The Aerodynamic Characteristics of Full-Scale Propellers Having 2, 3, and 4 Blades of Clark Y and R.A.F. 6 Airfoil Sections
• The Negative Thrust and Torque of Several Full-Scale Propellers and Their Application to Various Flight Problems
• Determination of boundary-layer transition on three symmetrical airfoils in the NACA full-scale wind tunnel
• Theoretical stability and control characteristics of wings with various amounts of taper and twist
• Tests in the variable-density wind tunnel of the NACA 23012 airfoil with plain and split flaps
• The influence of lateral stability on disturbed motions of an airplane with special reference to the motions produced by gusts
• Mechanism of flutter: A theoretical and experimental investigation of the flutter problem