You limited your search to:

  Partner: UNT Libraries Government Documents Department
 Serial/Series Title: NACA Memorandum Report
 Serial/Series Title: NACA Wartime Reports
 Collection: National Advisory Committee for Aeronautics Collection
A cooling correlation equation for a double-row radial engine based on the temperature of the exhaust-valve seat

A cooling correlation equation for a double-row radial engine based on the temperature of the exhaust-valve seat

Date: April 1, 1945
Creator: Black, Fred O , Jr
Description: None
Contributing Partner: UNT Libraries Government Documents Department
Cooling of a double-row radial engine by water injection to the individual cylinders

Cooling of a double-row radial engine by water injection to the individual cylinders

Date: February 1, 1945
Creator: Friedman, Harold E
Description: None
Contributing Partner: UNT Libraries Government Documents Department
Correlation of engine-cooling data

Correlation of engine-cooling data

Date: January 1, 1945
Creator: Brevoort, Maurice J
Description: None
Contributing Partner: UNT Libraries Government Documents Department
Correlation of mixture temperature data obtained from bare intake-manifold thermocouples

Correlation of mixture temperature data obtained from bare intake-manifold thermocouples

Date: January 1, 1946
Creator: White, H. Jack & Gammon, Goldie L
Description: A relatively simple equation has been found to express with fair accuracy, variation in manifold-charge temperature with charge in engine operating conditions. This equation and associated curves have been checked by multi cylinder-engine data, both test stand and flight, over a wide range of operating conditions. Average mixture temperatures, predicted by the equations of this report, agree reasonably well with results within the same range of carburetor-air temperatures from laboratories and test stands other than the NACA.
Contributing Partner: UNT Libraries Government Documents Department
Correlation of the Characteristics of Single-Cylinder and Flight Engines in Tests of High-Performance Fuels in an Air-Cooled Engine I : Cooling Characteristics

Correlation of the Characteristics of Single-Cylinder and Flight Engines in Tests of High-Performance Fuels in an Air-Cooled Engine I : Cooling Characteristics

Date: October 1, 1945
Creator: Wilson, Robert W.; Richard, Paul H. & Brown, Kenneth D.
Description: Variable charge-air flow, cooling-air pressure drop, and fuel-air ration investigations were conducted to determine the cooling characteristics of a full-scale air-cooled single cylinder on a CUE setup. The data are compared with similar data that were available for the same model multicylinder engine tested in flight in a four-engine airplane. The cylinder-head cooling correlations were the same for both the single-cylinder and the flight engine. The cooling correlations for the barrels differed slightly in that the barrel of the single-cylinder engine runs cooler than the barrel of te flight engine for the same head temperatures and engine conditions.
Contributing Partner: UNT Libraries Government Documents Department
Correlation of the characteristics of single-cylinder and flight engines in tests of high-performance fuels in an air-cooled engine II : knock-limited charge-air flow and cylinder temperatures

Correlation of the characteristics of single-cylinder and flight engines in tests of high-performance fuels in an air-cooled engine II : knock-limited charge-air flow and cylinder temperatures

Date: October 1, 1945
Creator: Brown, Kenneth D.; Richard, Paul H. & Wilson, Robert V.
Description: An investigation was conducted to correlate the knock limited performance of flight and single-cylinder engines under a variety of operating conditions.
Contributing Partner: UNT Libraries Government Documents Department
Correlation of wind-tunnel predictions with flight tests of a twin-engine airplane I : longitudinal-stability and -control characteristics

Correlation of wind-tunnel predictions with flight tests of a twin-engine airplane I : longitudinal-stability and -control characteristics

Date: April 4, 1945
Creator: Kauffman, William M
Description: None
Contributing Partner: UNT Libraries Government Documents Department
Correlation of wind-tunnel predictions with flight tests of a twin-engine patrol airplane II : lateral- and directional-stability and control characteristics

Correlation of wind-tunnel predictions with flight tests of a twin-engine patrol airplane II : lateral- and directional-stability and control characteristics

Date: August 30, 1945
Creator: Delany, Noel K & Kauffman, William M
Description: None
Contributing Partner: UNT Libraries Government Documents Department
Correlation Tests of the Ditching Behavior of an Army B-24D Airplane and a 1/16-Size Model

Correlation Tests of the Ditching Behavior of an Army B-24D Airplane and a 1/16-Size Model

Date: January 1, 1946
Creator: Jarvis, George A. & Fisher, Lloyd J.
Description: Behaviors of both model and full-scale airplanes were ascertained by making visual observations, by recording time histories of decelerations, and by taking motion picture records of ditchings. Results are presented in form of sequence photographs and time-history curves for attitudes, vertical and horizontal displacements, and longitudinal decelerations. Time-history curves for attitudes and horizontal and vertical displacements for model and full-scale tests were in agreement; maximum longitudinal decelerations for both ditchings did not occur at same part of run; full-scale maximum deceleration was 50 percent greater.
Contributing Partner: UNT Libraries Government Documents Department
Determination of air-consumption parameters for two radial aircraft engines

Determination of air-consumption parameters for two radial aircraft engines

Date: August 1, 1945
Creator: Howes, William
Description: None
Contributing Partner: UNT Libraries Government Documents Department
The effect of compression ratio on knock limits of high-performance fuels in a CFR engine I : blends of triptane and 28-R fuel

The effect of compression ratio on knock limits of high-performance fuels in a CFR engine I : blends of triptane and 28-R fuel

Date: February 10, 1945
Creator: Tower, Leonard K
Description: None
Contributing Partner: UNT Libraries Government Documents Department
The Effect of Compression Ratio on Knock Limits of High-Performance Fuels in a CFR Engine II : Blends of 2,2,3-Trimethylpentane with 28-R

The Effect of Compression Ratio on Knock Limits of High-Performance Fuels in a CFR Engine II : Blends of 2,2,3-Trimethylpentane with 28-R

Date: February 10, 1945
Creator: Tower, Leonard K
Description: The knock-limited performance of blends of 0,50; and 100 percent by volume of 2,2,3-trimethylpentane in 28-R fuel determined with a modified F-4 engine at three sets of conditions varying from severe to mild at each of three compression ratios (6.0, 8.0, and 10.0). A comparison of the knock-limited performance of 2,2,3-trimethylpentane with that of triptane (2,2,3-trimethylbutane) is included. The knock-Limited performance of 2,2,3-trimethylpontane was usually more sensitive to either compression ratio or inlet-air temperature than 28-R fuel, but the ratio of the knock-limited indicated mean effective pressure of a given blend containing 2,2,3-trimethypentane and 28-R to the indicated mean effective pressure of 28-R alone was not greatly affected by compression ratio if the engine operating conditions were mild. Although 2,2,3-trimethylpentane in general had a lower knock-limited performance than triptane, the characteristics of the two fuels were somewhat similar.
Contributing Partner: UNT Libraries Government Documents Department
The effect of compression ratio on knock limits of high-performance fuels in a CFR engine III : blends of 2,3-dimethylpentane with 28-R

The effect of compression ratio on knock limits of high-performance fuels in a CFR engine III : blends of 2,3-dimethylpentane with 28-R

Date: February 10, 1945
Creator: Tower, Leonard K
Description: None
Contributing Partner: UNT Libraries Government Documents Department
Effect of engine-operating variables and internal coolants on spark-advance requirements of a liquid-cooled cylinder

Effect of engine-operating variables and internal coolants on spark-advance requirements of a liquid-cooled cylinder

Date: May 1, 1945
Creator: Lietzke, A F
Description: None
Contributing Partner: UNT Libraries Government Documents Department
The effect of ethylene dibromide on the knock-limited performance of leaded and nonleaded S reference fuel

The effect of ethylene dibromide on the knock-limited performance of leaded and nonleaded S reference fuel

Date: February 1, 1946
Creator: Niemi, Richard O
Description: None
Contributing Partner: UNT Libraries Government Documents Department
Effect of fuel volatility and mixture temperature on the knocking characteristics of a liquid-cooled single-cylinder test engine

Effect of fuel volatility and mixture temperature on the knocking characteristics of a liquid-cooled single-cylinder test engine

Date: April 1, 1945
Creator: Lietzke, A F
Description: None
Contributing Partner: UNT Libraries Government Documents Department
The effect of high-resistance ignition cable on the erosion of spark-plug electrodes

The effect of high-resistance ignition cable on the erosion of spark-plug electrodes

Date: September 1, 1945
Creator: Rodgers, Franklin A
Description: None
Contributing Partner: UNT Libraries Government Documents Department
The effect of increase in combustion-air inlet temperature from 80 to 130 F on the sea-level performance of a 22-inch-diameter pulse-jet engine

The effect of increase in combustion-air inlet temperature from 80 to 130 F on the sea-level performance of a 22-inch-diameter pulse-jet engine

Date: July 1, 1946
Creator: Hughes, Richard F
Description: None
Contributing Partner: UNT Libraries Government Documents Department
Effect of internal coolants on the knock-limited performance of an Allison V-1710-99 engine with a compression ratio of 6.0

Effect of internal coolants on the knock-limited performance of an Allison V-1710-99 engine with a compression ratio of 6.0

Date: June 1, 1945
Creator: Brun, Rinaldo J
Description: None
Contributing Partner: UNT Libraries Government Documents Department
The effect of liquid and ice particles on the erosion of a supercharger-inlet cover and diffuser vanes

The effect of liquid and ice particles on the erosion of a supercharger-inlet cover and diffuser vanes

Date: June 1, 1946
Creator: Rollin, Vern G
Description: None
Contributing Partner: UNT Libraries Government Documents Department
Effect of Mach and Reynolds numbers on the maximum lift coefficient obtainable in gradual and abrupt stalls of a pursuit airplane equipped with a low-drag wing

Effect of Mach and Reynolds numbers on the maximum lift coefficient obtainable in gradual and abrupt stalls of a pursuit airplane equipped with a low-drag wing

Date: July 6, 1945
Creator: Blair, William K
Description: None
Contributing Partner: UNT Libraries Government Documents Department
The effect of Mach number on the aerodynamic characteristics of a single-engine pursuit airplane as determined from tests of a 1/3-scale model

The effect of Mach number on the aerodynamic characteristics of a single-engine pursuit airplane as determined from tests of a 1/3-scale model

Date: May 3, 1945
Creator: Jessen, Henry
Description: None
Contributing Partner: UNT Libraries Government Documents Department
Effect of Maximum Cruise-Power Operation at Ultra-Lean Mixture and Increased Spark Advance on the Mechanical Condition of Cylinder Components

Effect of Maximum Cruise-Power Operation at Ultra-Lean Mixture and Increased Spark Advance on the Mechanical Condition of Cylinder Components

Date: September 1, 1945
Creator: Harris, Herbert B.; Duffy, Robert T. & Erwin, Robert D., Jr.
Description: A continuous 50-hour test was conducted to determine the effect of maximum cruise-power operation at ultra-lean fuel-air mixture and increased spark advance on the mechanical conditions of cylinder components. The test was conducted on a nine-cylinder air-cooled radial engine at the following conditions:brake horsepower, 750; engine speed, 1900 rpm; brake mean effective pressure, 172 pounds per square inch; fuel-air ratio, 0.052; spark advance, 30 deg B.T.C.; and maximum rear-spark-plug-bushing temperature, 400 F. In addition to the data on corrosion and wear, data are presented and briefly discussed on the effect of engine operation at the conditions of this test on economy, knock, preignition, and mixture distribution. Cylinder, piston, and piston-ring wear was small and all cylinder component were in good condition at the conclusion of the 50-hour test except that all exhaust-valve guides were bellmouthed beyond the Army's specified limit and one exhaust-valve face was lightly burned. It is improbable that the light burning in one spot of the valve face would have progressed further because the burn was filled with a hard deposit so that the valve face formed an unbroken seal and the mating seat showed no evidence of burning. The bellmouthing of the exhaust-valve guides is believed ...
Contributing Partner: UNT Libraries Government Documents Department
The effect of modified baffles and auxiliary-cooling ducts on the cooling of a double-row radial engine

The effect of modified baffles and auxiliary-cooling ducts on the cooling of a double-row radial engine

Date: March 1, 1945
Creator: Geisenheyner, Robert M
Description: None
Contributing Partner: UNT Libraries Government Documents Department
FIRST PREV 1 2 3 4 5 NEXT LAST