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The Propeller and Cooling-Air-Flow Characteristics of a Twin-Engine Airplane Model Equipped With NACA D(Sub S)-Type Cowlings and With Propellers of NACA 16-Series Airfoil Sections

Description: Report presenting an investigation in the 19-foot pressure tunnel to determine the nacelle drag, the cowling-air flow, and the propeller characteristics of a model of a high-performance military airplane. The model is fitted with NACA D(sub S)-type engine cowlings and with propellers embodying NACA 16-series airfoil sections. Results regarding the propeller characteristics, drag and cowling-air flow with the propeller removed, the effect of propeller on flow through cowling, and the influence of cooling requirements on airplane performance are provided.
Date: September 1944
Creator: McHugh, James G. & Pepper, Edward
Partner: UNT Libraries Government Documents Department

Profile-Drag Coefficients of Conventional and Low-Drag Airfoils as Obtained in Flight

Description: "The results of flight investigations of the profile drag of several carefully finished conventional and low-drag airfoils are presented. The results indicated that in all cases lower profile-drag coefficients were obtained with the low-drag than with the conventional airfoils over the range of lift coefficient tested and that, for comparable conditions of lift coefficient and Reynolds number, the low-drag airfoils may have profile-drag coefficients which are at least 27 percent lower than the profile-drag coefficients of the conventional airfoils" (p.1).
Date: May 1944
Creator: Zalovcik, John A.
Partner: UNT Libraries Government Documents Department

The Blackburn "Bluebird" Mark IV (British): All-Metal Biplane

Description: Circular presenting a description of the Blackburn Bluebird Mark IV, which is an all-metal airplane. Details are provided regarding constructional features, the cockpit, the gasoline system, and the flight characteristics.
Date: April 1929
Partner: UNT Libraries Government Documents Department

The Bernard 82 Military Airplane (French): A Long-Range Monoplane

Description: Circular presenting a description of the Bernard 82, which is a scaled-up version of the 80 G.R.; they have similar designs but the 82 has greater span and wing area, deeper chord, higher fuselage, and a thicker wing for the bombs. A description of some flight tests and characteristics is also provided.
Date: June 1934
Partner: UNT Libraries Government Documents Department

The Bernard 20 C.1 (French): A Single-Seat Pursuit Monoplane

Description: Circular presenting a description of the Bernard 20 C.1, which is made of wood and has four main parts: a one-piece wing with a fuselage in the middle, a rear section with the tail surfaces, an engine mount, and a landing gear.
Date: July 1929
Partner: UNT Libraries Government Documents Department

Blériot Combat Monoplane 127 (French)

Description: The 127 is a cantilever monoplane without external bracing. It is designed to accompany and protect bombardment and observation aircraft. Descriptions of the airfoil, fuselage, power plant, landing gears, and armament are provided.
Date: November 1928
Partner: UNT Libraries Government Documents Department

The Blackburn "Sprat": A Training Airplane Convertible Into Landplane or Seaplane

Description: The Sprat is similar the Blackburn Swift and Dart models but is designed as a trainer. It is powered with a smaller 275 HP Rolls-Royce Falcon engine. It is a 2 seat biplane with equal sized upper and lower wings. It can quickly convert from a land to a seaplane.
Date: July 1926
Partner: UNT Libraries Government Documents Department

The Blackburn "Bluebird": Two-Seat Training and Sport Airplane

Description: The Bluebird is a two seat, side by side biplane, designed primarily for training and pleasure flying. A description of the construction and flight characteristics is provided.
Date: June 1927
Partner: UNT Libraries Government Documents Department

The Short "Scylla" Commercial Airplane (British): An All-Metal Biplane

Description: Circular presenting a description of the Short Scylla, which is a 39-passenger landplane with four Bristol Jupiter XF BM engines. A description of the characteristics, blueprints, and photographs of the aircraft are provided.
Date: May 1934
Partner: UNT Libraries Government Documents Department

The Sikorsky Twin Engined Amphibian, Type S-38, Model 1928

Description: The S-38, model 28 is a nine passenger Sesquiplane powered by two Pratt and Whitney Wasp 410 HP engines and is intended for routes where the ability to take off and land from both land and water is essential. A description of the weight, construction, power plant, fuel system, landing gear, hull and floats, dimensions, flight characteristics, blueprints, and photographs are provided.
Date: August 1928
Partner: UNT Libraries Government Documents Department

The Short "Calcutta": First British All-Metal Commercial Seaplane

Description: The Calcutta is a large seaplane, with seating for 16 and a payload of 3,400 pounds. A description of the design, construction features, engine installation, specifications, performance, and photographs are provided.
Date: March 1928
Partner: UNT Libraries Government Documents Department

The Short S.7 "Mussel": A Training Seaplane With 65 Hp. "Cirrus" Engine

Description: Circular presenting a description of the Short "Mussel" S.7, which is designed for use as a light training airplane of robust and simple construction. Information regarding the design, blueprints, and photographs are provided.
Date: May 1926
Partner: UNT Libraries Government Documents Department

Training Airplane "Arado SC 1"

Description: The Arado SC 1 is a staggered overhung biplane. It was build specifically as a training aircraft. A description of the aircraft design, the flight characteristics, and photos of the aircraft are provided.
Date: September 1927
Partner: UNT Libraries Government Documents Department