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Topic: Avgas

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	Aviation Fuel - AvGas Information
		Avgas is gasoline fuel for reciprocating piston engine aircraft and is not to be confused with jet fuel.
		Avgas grades are defined primarily by their octane rating.
		Avgas 100/130 (in this case the lean mixture performance rating is 100 and the rich mixture rating is 130).
	www.csgnetwork.com /avgas.html (328 words)

	Avgas
		Avgas is a high-octane fuel used for aircraft and, in the past, racing cars.
		Avgas includes a number of additives in order to decrease volatility so it won't evaporate away as quickly, which is important for high-altitude use.
		The particular mixtures in use today are the same as when they were first developed in the 1950s and 60s, and therefore the high-octane ratings are achived by the addition of large amounts of tetra-ethyl lead, a fairly toxic substance that was outlawed for car use in most countries in the 1980s.
	www.ebroadcast.com.au /lookup/encyclopedia/av/Avgas.html (206 words)

	AOPA Online: Rising fuel prices: Will you feel it at the avgas pump?
		Avgas is composed of manufactured chemicals like aviation alkylate and toluene, and the production costs associated with these synthetic compounds contribute significantly to the price of the finished product.
		Avgas often is stored for long periods of time before it is distributed to airports because only small quantities are used as compared to automotive gasoline.
		Therefore, avgas is not as affected by market fluctuations in oil prices, unlike automotive gasoline and jet fuel, which are consumed almost as quickly as they are produced.
	www.aopa.org /whatsnew/newsitems/2005/050317avgas.html (635 words)

	Aviation Turbine Fuel and Aviation Gasoline Excises (Research Note 13 2001-02)
		A problem with using AVGAS to recover the cost of terminal navigation and en route services was that only some aircraft used the services.
		The terminal navigation component of AVGAS was eliminated on 1 July 1998 when the rate was reduced by 13.092 cents to 1.711 cents per litre.
		The first was an increase of 0.391 cents per litre on AVTUR and 0.467 cents on AVGAS to fund a shortfall in the recovery of air safety costs.
	www.aph.gov.au /Library/pubs/RN/2001-02/02RN13.htm (940 words)

	AVGAS 100LL en ROUMANIE
		Avgas is only used in aircraft that use internal combustion engines: jet aircraft and turboprops use kerosene jet fuel.
		The particular mixtures in use today are the same as when they were first developed in the 1950s and 1960s, and therefore the high-octane ratings are achieved by the addition of tetra-ethyl lead, a fairly toxic substance that was phased out for car use in most countries in the 1980s.
		Avgas 80/87 has the lowest lead content at 0.5 gram lead per US gallon, and is only used in very low compression ratio engines.
	www.echange-roumanie.com /AVGAS.htm (1085 words)

	Reference.com/Encyclopedia/Avgas
		Avgas is a portmanteau for aviation gasoline, as distinguished from mogas (motor gasoline), which is the everyday gasoline used in cars.
		Avgas 100/130 is a higher octane grade aviation gasoline, containing a maximum of 4 grams of lead per US gallon, maximum 1.12 grams/litre.
		Avgas has a density of 6.02 lb/US gallon at 15 °C, or 0.72 kg/l, and this density is commonly used for weight and balance computation.
	www.reference.com /browse/wiki/Avgas (1454 words)

	Avgas Information
		Avgas is an abbreviation for aviation gasoline, as distinguished from MOGAS (automobile gasoline), which is the everyday gasoline used in cars.
		Avgas is only used in aircraft that use piston engines and Wankel rotaries that are not diesel.
		Avgas 80/87 has the lowest lead content at a maximum of 0.5 grams lead per US gallon, and is only used in very low compression ratio engines.
	www.bookrags.com /wiki/Avgas (1050 words)

	Racing gasoline verses aviation gasoline
		Avgas 80/87: this product is used in low compression ratio aircraft engines, contains little or no lead, is red in color, and should not be used in any automotive engine due to a low motor octane number of about 80.
		Avgas 100 LL: the LL stands for "low-lead" which means two grams per gallon, low compared to the avgas 100/130 that it was designed to replace.
		Avgas can be a good gasoline for some applications, but since most racers do not know the octane requirement of their engines, they would be better off with a "real" racing gasoline that will give them the overall resistance to detonation that they need to protect their investment.
	www.osbornauto.com /racing/race2avgas.htm (566 words)

	Avgas to be phased out
		It would appear that Victoria has some form of restriction applied to the sale of AVGAS as Mobil have instructed all their Victorian agents who sell AVGAS for non-aviation purposes to obtain a written disclaimer from the purchasers that the fuel is for off road use only.
		In the rest of Australia, AVGAS (and indeed any leaded fuel) used on any public roads in a vehicle manufactured since January 1986 is also illegal, irrespective of any "Rally Registration" which may be held by that particular vehicle for that State.
		If CAMS had continued to allow AVGAS to be used by our members in events sanctioned by CAMS, it could be seen as maintaining a climate of demand for the product, in which context, at some time, one of our members would inevitably be prosecuted.
	www.maserati.org.au /notebook/CAMS/CAMS04_Avgas.htm (2338 words)

	Racing Gasoline Verses Aviation Gasoline - E2S
		Avgas 100 LL: the LL stands for andquot;low-leadandquot; which means two grams per gallon, low compared to the avgas 100/130 that it was designed to replace.
		Avgas is short on octane, has a lower volatility and doesn't evaporate as quickly, which is important for high-altitude use.
		The problem with avgas as a race fuel is the fact it is blended for an application where acceleration and throttle response are not high priorities.
	forums.everything2stroke.com /articles/6404-racing-gasoline-verses-aviation-gasoline.html (2763 words)

	Aviation Gasoline
		AVGAS is the fuel which coming from the petroleum fraction designed for the fuel of air transport (Aviation) at the plane which using the Internal of Combustion Engine, piston Engine or reciprocating engine with Spark Ignition.
		AVGAS is a mixture of components derived from crude oil and synthetic hydrocarbon blending agents with the addition – of very small quantities of chemical agents such as tetraethyl lead, inhibitors and dyes.
		AVGAS grades are defined primarily by their octane rating which indicates its performance number.
	aviation.pertamina.com /files/aviation_gasoline.asp (334 words)

	Aircraft engineering - why piston engine avgas and turbine engine avtur?
		avgas is for piston engined aircraft and kerosene for the
		Avgas, like motor gasoline (mogas) and most other refinery products, is usually produced by blending two or more components to achieve the desired properties.
		Today avgas is used mainly by small aircraft and light helicopters; there is still a small but significant number of military and civilian transports that still use avgas.
	www.eng-tips.com /viewthread.cfm?qid=78658 (2126 words)

	No. 02-500: Atlantic Richfield v. United States - Opposition
		Although it was expected that military demand for avgas would drop, the oil industry anticipated that higher octane fuels would have significant application in the private automobile and aviation industries, and petitioners held a tremendous competitive advantage after the war because of their participation in the avgas program.
		That process produced an avgas component known as "alkylate" as well as "spent alkylation acid" (about 87%-90% acid by weight), which remained relatively high in acid content and thus was a valuable commodity.
		6 Although the avgas program led to an increase in spent alkylation acid, which was the direct result of the alkylation process, petitioners ARCO and Texaco err in stating that the program also increased the amount of acid sludge produced at their refineries.
	www.usdoj.gov /osg/briefs/2002/0responses/2002-0500.resp.html (5952 words)

	Aviation Fuels: Chapter 10: Aviation Gasoline Composition
		Figure 10.3 shows which of the important avgas properties are bulk properties and which depend on the presence or absence of trace amounts of components.
		For the leaded grades of avgas, tetraethyl lead additive and the identifying dye are mandatory; antioxidant, anti-icing, and electrical-conductivity additives are optional.
		When avgas is burned in an engine, the lead in tetraethyl lead is converted to lead oxide.
	www.chevron.com /products/prodserv/fuels/bulletin/aviationfuel/10_ag_composition.shtm (1066 words)

	Alaska Journal of Commerce Online
		Avgas was selling June 18 at Aero Tech at $2.99 a gallon.
		Avgas prices generally reflect gasoline prices, said Bruce Barto, vice president and general manager of Crowley Marine, which supplies Alaska with roughly 3 million gallons of avgas a year.
		Bulk avgas is $2.90 a gallon in Tok, he said, an increase of 90 cents over the same time last year.
	www.alaskajournal.com /stories/062804/loc_20040628013.shtml (921 words)

	Avgas in place of ULP
		Avgas is simply kerosene for those that didn't know already...........
		Avgas does not have aromatic hydrocarbons found in others fuels that are used by sniffers.
		So effectively with the high lead levels in Avgas, we can expect it to be phased out in Australia in the not too distant future as it has been already in other parts of the world.
	www.westernangler.com.au /forum/fb.asp?m=53688 (1751 words)

	The Benefits of AVgas for Paramotoring and Powered Paragliding - www.AmericanParagliding.com
		Below are a bunch of differences between pump gas and AVgas: AVgas smells a whole lot better than pump gas (you will appreciate this if you inevitably spill it inside your vehicle or on your hands).
		AVgas has some lead in it which is a lubricant (two stroke engines burn hotter and that extra lubrication can mean the difference between a running engine and a seized one.
		AVgas will not gum up if left for a long periods (The gumming of pump gas is from all the additives gone bad.
	www.americanparagliding.com /avgas.htm (753 words)

	SAIB NE-00-02
		It appears that the highest concentration of jet fuel in PFS’s Avgas storage tank was 7.7% and was further diluted by subsequent deliveries of fresh (on-specification) Avgas.
		The octane rating, or antiknock quality, of avgas is measured using laboratory engines and is expressed in terms of lean and rich ratings of the fuel.
		AVGAS is available with lean/rich ratings of: 80/87, 91/96, 100/130 and 115/145.
	www.faa.gov /aircraft/safety/alerts/saib/media/NE-00-02.htm (669 words)

	Avgas pinch grounds small planes across the region
		Since The Namibian broke a story on the pending Avgas shortage in February, the going has been tough for operators of small piston-engine aircraft.
		One of the country's main suppliers of Avgas, BP Namibia, earlier this year warned customers of the pending shortage and is currently sourcing the fuel from around the world.
		She said Avgas demand worldwide was relatively small compared to the market for jet fuel used by more modern and bigger planes.
	www.namibian.com.na /2006/April/national/0617C68670.html (619 words)

	Gasoline Digest Page 2
		AvGas has lower volatility so, used in proportions higher than about 40%, part-throttle drivability and cold starts may be compromised.
		AvGas has a lower specific gravity so it will require a change in air-fuel ratio calibration for the engine to perform at its best.
		The obvious reason to use race gas is higher antiknock rating, but just as important is: it’s an optimum, balanced blend of hydrocarbons and additives intended to produce the highest possible performance from a high rpm, automotive engine.
	www.idavette.net /hib/fuel/page2.htm (2668 words)

	DG Flugzeugbau GmbH / AVGAS, super petrol, leaded or unleaded?
		For the usage of a two-stroke-engine the lead addition is completely unnecessary, as it is used to seal up the valves in older engines.
		The easiest and safest recommendation is to use AVGAS in future.
		AVGAS causes a harsher combustion than MOGAS, because of its high octane rating.
	www.dg-flugzeugbau.de /avgas-e.html (830 words)

	SAIB ANE-99-11 (Site not responding. Last check: )
		The subject AVGAS was delivered to FBOs in the New England and Eastern regions of the United States.
		The results of the D130 test indicated that the subject AVGAS produced a moderate to dark tarnish on the copper strip, as compared to the slight tarnish result which is required to pass the test.
		All AVGAS residing at the airport facility in storage tanks or mobile refuelers should be confirmed to be compliant with ASTM Specification D910.
	www.faa.gov /aircraft/safety/alerts/saib/media/ANE-99-11.htm (537 words)

	Use of Avgas and Leaded racing fuels in superkarts for 2002
		It need to be said that AVIATION GASOLINE (AVGAS) is designed for large displacement, high altitude, low revving, low specific power output aircraft engines and is not really suitable for small displacement, high revving, high specific power output racing engines.
		At this stage, Avgas will still be available for use as a racing fuel for 5th category vehicles only which includes superkarts.
		Formula Holden and Formula Ford have asked for an exemption for their vehicles to continue using Avgas and Cams has asked them to show just cause as to why they actually require Avagas as opposed to high octane Super Unleaded as a racing fuel.
	www.ozsuperkart.net /Newsbits/Avgasissue.htm (2463 words)

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