411 Squadron Operations Record Book 81. 60. Maintenance difficulties can be summarized as follows: Spark plug leading was increased. But A.W. 57 It should also indicate the military value of these fuels for long range patrol or bombardment operation". be further investigated. An NPRM is not going to be forthcoming soon. Probable cause: The pilot's improper glidepath during a landing at night, which resulted in a collision with approach lights. [21] Wyoming Labor Journal, June 26, 1942. 16. 87 If water is entrained or dissolved in the fuel, it cannot be removed by draining the sump(s) and filter bowls before flight. Such use also provided fuel savings and thus made it possible for planes to fly farther. Wyoming’s other senator, Democrat Harold H. Schwartz, reported in April 1942 that Wyoming refiners were working together on plans to solve the 100-octane fuel shortages. use of 150 grade fuel were removed. The Wall Creek sand lies at a depth of near 3,000 feet and the Dakota sand at about 4,000 feet. Message from General Bradley (POWE 33/1360) Engines Cleared for Use of Grade 150 Fuel In severe cases, the engine stops running. 1 and No. 45 One of the most important characteristics of an aircraft fuel is its volatility. 34. 16 June, 1944. "Flight Tests on the P-47D Airplane, AAF No. Performance numbers are also used to characterize the antidetonation characteristics of fuel. 35, Following successful testing, the Spitfire IX's Merlin 66 was cleared in March 1944 to use +25 lbs, obtainable with 150 grade fuel. That means better health for the industry and more smiles for pilots. 84. It seemed too confusing to have a 100/130 and a 100/130LL, so they started calling the new product 100LL but the new product still met the same 100 lean rating and 130 rich rating octane requirements as the old 100/130 fuels. 29 One of the most central needs was for a large, dependable supply of petroleum. The Japanese attack on Pearl Harbor brought the United States into World War II on Dec. 7, 1941. It can enter the fuel even when the aircraft is parked on the ramp with the fuel caps in place. Boost Pressure, 6th September, 1944 But the vapor pressure of Jet A is only 0.125 psi at standard atmospheric conditions. Boost Pressure, 6th September, 1944, 350 Operations Record Book, September 1944, 130 Squadron Operations Report, 12 September 1944, 41 Squadron Operations Report, 17 September 1944. 10 March, 1944. Larson, History of Wyoming (Lincoln: University of Nebraska Press, 1978), 497. The principal agency in charge was the Office of the Petroleum Coordinator, but early in the war some 40 agencies had a say, one way or another, in the petroleum industry. [4] M.H. 49. Shortly after June 1 P-38 units were re-equipped with P-51 type aircraft so that experience with 150 grade fuel in P-38 aircraft is limited. Turbine engine fuels sustain a continuous flame inside the engine. 2, Program for Fuel Research, Development and Test. (AIR 8/1226) War mobilization, already begun in anticipation of America's involvement, went into high gear. 350 Operations Record Book, September 1944 Special hoses and seals were required for use of aromatic fuels. While AVGAS experiences similar issues of solid particle contamination and icing concerns, the presence of water and fuel-consuming microbes is more prominent in jet fuel, which has different molecular structure and retains water in two principal ways. 74. 65. P.E.P, as the new fuel was called, was tried in order to remedy lead fouling of spark plugs. 38 424 Aviation Fuel and Ammunition Park, 2nd T.A.F. Turbine engines must start readily, and be able to restart while in flight. 24, Successful service tests led in May 1944 to the Eighth Air Force Fighter Command requesting that it "be supplied immediately with grade 150 aviation fuel for use in P-47, P-51 and P-38 planes". Robineau concluded that the oil produced from the Lance Creek field in Niobrara County was of sufficiently high quality that it would be ideal for making 100-octane fuel. B. On 21 February 1944 the Engineering Division of the US Army Air Force Materiel Command was instructed to initiate a test program on 104/150 Grade Fuel. Robineau asked the Defense Plant Corporation to move quickly on his loan request, because the owner of the three city blocks, F. E. Warren Mercantile Company, would likely raise the asking price of $3,250 per block—already up from an initial asking price of of $1,000—after the 60-day option had expired. 610 Squadron uprated thier Spitfire XIVs on 14 July, the Operations Record Book stating "A technical party visited the unit to modify the aircraft to fly at 21 lbs boost on 150 octane petrol". Over-heating tendencies in climb were greater with the use of water, average comparable cylinder head temperatures being approximately 10° C. higher. The Leatherman multi-tool is one I’ve seen many a pilot sport. The cases of cutting-out on take-off definitely attributed to excessive fouling were comparatively few, although numerous enough to list it as an effect of the extra lead. The housing shortage had become so acute that many of the workers connected to a United Airlines project underway in the capital city had to be bused in from Greeley or Fort Collins, Colo., each day. P-47D Airplane Performance Tests at 70 In. The standard fuel used in aviation piston engines is aviation gasoline, or AvGas. 64. Detonation can cause such an area to form as can a cracked spark plug insulator or a sharp valve edge. I believe you are hearing the pops is because something has a crack in it. shared a report, dated 16th June 1944 with A.E.A.F. It is made to turn smoothly by having the fuel-air mixture burn in the combustion chamber and propagate directionally across the top of the piston. No. By comparison, the 55 houses already under construction in Cheyenne, and another 165 proposed houses ranged in price from $3,500 to $5,200 each. Follow the manufacturer’s instructions for fuel handling procedures and fuel system maintenance. The weight included 265 gal. Request for Grade 100/150 1.5 T Aviation Fuel for Eighth Air Force Units on the Continent J.H Houghton, Director of Supply, 5 February 1945. 50 2. 51 The extent of this leading was such that plug change was required after approximately 15 hours flying. Most engine operations manuals permit the use of either Jet A or Jet A-1. with water was about forty m.p.h. st = "b4.ca"; [2] Ibid., p. 377. It is recommended that the use of 70.0" Hg. Do we need another aviation organization? However, maximum performance can only be maintained by strict maintenance on the duct system to prevent possible leakage. https://azurlane.koumakan.jp/w/index.php?title=100/150_Aviation_Gasoline&oldid=88292, Creative Commons Attribution-NonCommercial-ShareAlike. produced limited amounts of 100 octane aviation fuel for the USAAC from about 1937, but they did so by blending ordinary paraffinic petrol and iso-octane, producing an effective low-benzole high-lead fuel suitable for US aircraft engines. The American Heritage Center is located at 2111 Willett Drive on the University of Wyoming campus. A fuel under evaluation as a replacement for leaded avgas for the 170,000 aircraft in the piston-powered general aviation fleet will need “additional refinement,” and three new fuels have undergone preliminary testing in 2019, the FAA said in an update on its Piston Aviation Fuels Initiative.
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