On Nov 18, Civil Air Patrol (CAP) completed the paperwork required to use unleaded fuel in its Cessna 182T aircraft based at Reid-Hillview Airport of Santa Clara County (RHV - San Jose, CA). Modern aviation unleaded fuels are currently being developed, such as 82UL in the United States. The first thing to remember when comparing aircraft engines to motor vehicles is that they operate quite differently. Unleaded Aviation Gasoline FAQs Page 4 of 4 11/19/20 Q 16. Similar to diesel . By the mid-1980s, gasoline for vehicles used in the U.S. was primarily unleaded, but leaded gas was not entirely prohibited or phased out until 1996, per NPR. Industry's only 100% aviation grade unleaded fuel - Meets ASTM D7547 spec for unleaded aviation fuel - Quality, octane, storage stability, compatibility with fuel system, etc FAA-certificated, safe to fly, and insured for aviation use - FAA TC, STC, or SAIB allows use in 125,000+ piston aircraft - Compatible with 68% of the US piston fleet The easy answer to replacing leaded avgas for 70 percent of the existing fleet. Developing a commercially viable unleaded high-octane aviation gasoline proved to be a complex challenge due to a myriad of technical and economic issues. gasoline, 94 octane unleaded aviation gasoline, etc.) December 4, 2013. Swift Fuels, a developer of unleaded aviation gasoline, announced the expansion of its high-performance UL94 Unleaded Avgas into the US Pacific coast corridor. #1 1500 gal of 100LL combined with 3280 gal Regular Unleaded automobile gasoline. Although some planes . The STC for use of GAMI's proprietary high-octane unleaded avgas, G100UL, is currently for . Thank you for Jeb Burnside's "Follow the Money" commentary in the April 2022 issue. This is the first aircraft in CAP's approximately 560-aircraft fleet to make the transition to unleaded aviation gasoline. More than 80% of General Aviation aircraft, including 99+% of Light Sport Aircraft (LSA) could be flying on premium unleaded mogas. A moment of detonation Lead boosts octane levels, allowing the mixture of fuel and air to. Aviation gasoline (avgas) is the aviation fuel most commonly used in piston-engine aircraft. I'd like to highlight another aspect of the leaded-avgas issue that aviation's "alphabet soup" hasn't called much attention to. Lead is still allowed in aviation gas used by small planes, but most of those planes can operate on unleaded fuel if it's available. . The FAA's Approved Model List (AML) STC means specific engines and aircraft are approved at first, with the AML expanding based on additional data and testing, according to GAMI officials. Published: Aug. 4, 2021 at 02:27 PM EST. One possibility is that airplane engines will have to run on unleaded auto gas in the near future. In the last year and a half, 94UL hasn't gained much traction even though it's approved . Additionally, unleaded fuel can actually improve engine function and reduce the costs of aircraft ownership and could likely be cheaper or similarly priced to leaded fuel.
Tom Wilson. Representatives from the local aviation community will announce Monday that planes at Reid-Hillview Airport in East San Jose will run on unleaded fuel, marking a victory for environmental and community groups that have complained for years about the dangers of leaded fuel. Unleaded Fuel. Many high-income countries followed suit, but . The Aircraft Owners & Pilots Association (AOPA), Experimental Aircraft Association (EAA), and General Aviation Manufacturers Association (GAMA) congratulate General Aviation Modifications, Inc. (GAMI) for its G100UL unleaded aviation fuel receiving the FAA's approval of a Supplemental Type Certificate (STC) for the fuel's use in certain Lycoming O-320, O-360 and IO-360 piston engines. The work also has unlocked his next major project: making unleaded fuel any aircraft engine can burn. EAGLE - Unleaded Aviation Fuel Leaders of aviation and petroleum groups have committed to an initiative laying out a clear plan to transition piston-engine aircraft to lead-free aviation fuels by the end of 2030 - the Eliminate Aviation Gasoline Lead Emissions (EAGLE) initiative. This will provide commercially viable fuel opportunities for dozens of airfields across California to access UL94 Unleaded Avgas. . General Aviation Modifications, Inc. GAMI now has an STC for their unleaded AVGAS, which meets all the octane requirements of 100LL, including the 99.5 MON minimum, along with a matching RVP of 7psi. The deal includes the bulk supply of UL91 - an approved colourless, unleaded aviation fuel with a fixed volatility range. As a result, engine and fuel testing at the FAA's small-engine and fuel test facilities were initiated in early 1994. In the service bulletin SEB-28-04, Textron Aviation listed several Cessna 152, 172, 177, 182, and 206 models that can operate on very low lead (100VLL) and unleaded fuel. In this case, the Avgas UL 91 can be used after implementation of the related Standard Change CS-SC202b, see page 48/49 of CS/STAN The general aviation industry's ultimate goal is an FAA fleet-wide authorization for a practical unleaded avgas that can replace 100LL with no negative impact on safety and the general aviation community. But one community is refusing to wait that long. October 28, 2021 By Dan Namowitz The FAA has approved hundreds of additional piston aircraft engine models to burn the 100-octane unleaded avgas developed by General Aviation Modifications Inc. (GAMI) in a move that an AOPA consultant said signals the agency's "bullish" approach to the eventual elimination of leaded aviation fuel. Shell Aviation stated on December 3rd that its 10 year development and testing of an unleaded aviation fuel to replace the current 100LL AvGas (aviation fuel) has possibly paid off. The Piston Aviation Fuel Initiative will continue to evaluate, test, and qualify high-octane aviation unleaded fuels with the objective to ultimately transition the fleet to unleaded aviation fuel. Jet fuel ( Jet A-1 type aviation fuel, also called JP-1A) is used globally in the turbine engines ( jet engines, turboprops) in civil aviation. Unleaded aviation gasoline. has submitted its 102 octane unleaded (102UL) Avgas to the FAA for testing in the Piston Aircraft Fuels Initiative (PAFI) program, but it also announced in mid-2015 that it was producing a 94 octane unleaded (94UL) Avgas. Diesel fuel and unleaded gasoline will be used for ground vehicles. The proposed sale will improve Israel's ability to meet current and future threats in order to defend its borders. The intent is for this grade to be a complete unleaded replacement for the leaded grades Avgas . IF YOU DON'T NEED 100 OCTANE LEADED GASOLINE FOR YOUR AIRPLANE, WHY ARE YOU USING IT? I'd like to highlight another aspect of the leaded-avgas issue that aviation's "alphabet soup" hasn't called much attention to. In July 2021, the FAA approved Supplemental Type Certificates (STCs) authorizing use of G100UL high-octane unleaded avgas. The FAA has approved an additional 611 certified piston aircraft engines to run on GAMI's G100UL high octane unleaded avgas in an FAA-approved model list that was posted on Thursday. - July 24, 2018, 11:40 PM. In late October, Textron Aviation announced several of its general aviation models can now operate on unleaded 91 and 94-octane, also known as mogas/motor gasoline.
Only show this user. In Finland, Sweden, and Norway, 95 RON is the standard for regular unleaded gasoline and 98 RON is also available as a more expensive option. The PAFI government-industry partnership is facilitating the development and deployment of a new unleaded aviation fuel that can be readily available to the GA . unleaded aviation gasoline for civil aircraft. An unleaded fuel developed by the company GAMI has attempted to bypass the EAGLE program by getting type-certified for use in all aircraft, and has made it through every FAA test needed; however,. Updated: Apr 14, 2021. Unleaded Fuel. Representatives from the local aviation community will announce Monday that planes at Reid-Hillview Airport in East San Jose will run on unleaded fuel, marking a victory for environmental and commu
These requirements included the necessity for a single high octane unleaded avgas to be compatible . Today we held a press conference with local news to announce that we have switched our entire fleet (21 airplanes) at Reid-Hillview Airport to UL94 unleaded aviation fuel. It seems the G100UL contains the same components of normal aviation gasoline, in somewhat different proportions. The FAA now plans to approve an unleaded aviation fuel by 2030. Jet fuel is a clear to straw-colored fuel, based on either an unleaded kerosene ( Jet A-1), or a naphtha- kerosene blend ( Jet B). The use of Avgas UL 91, when this fuel grade has been approved for the particular engine types, is possible even if the airframe TCDS specifies a higher minimum number of octane (e.g. With the announcement, about 70 percent of existing engines in service are now able to use the fuel, which received FAA approval itself in July. Net result was supposed to be about 115 car octane, and their low lead was really equal to the old leaded style car fuel. The heavy composition of an unleaded aviation gasoline is explained by the presence of m-toluidine and it is not a positive fact, however all the control points (10%, 40%, 50%, 90%, and FBP) satisfy the current standards for Avgas 100VLL. Over 110,000 aircraft are already FAA-authorized to use the UL94 Avgas as a "drop-in ready" fuel. According to the EAA's own hardcopy STC materials (but not emphasized on the EAA or AOPA web sites . We've been delivering aviation products for 30 years and we've never had an issue, and then in 30 days we had two issues. When I was running a 5 gallon AVGAS mix to a tank, it worked fine for my 11.1 engine. Shell Aviation Produces Unleaded AvGas. According to the EAA's own hardcopy STC materials (but not emphasized on the EAA or AOPA web sites . At the beginning of the project, GAMI . Avgas is distinguished from conventional gasoline (petrol) used in motor vehicles, which is termed mogas (motor gasoline) in an aviation context. Leaded aviation fuel, or avgas . AVGAS UL 91 is cleaner for the environnement in our general aviation network. General Aviation Modifications, Inc. (GAMI) has received an FAA STC for its G100UL unleaded aviation fuel for use in some Lycoming O-320, O-360, and IO-360 piston engines. Phillips 66 and Afton Chemical are working together to develop and distribute an unleaded 100-octane avgas (UL100) that would eliminate dependency on . You can get leaded race gas out of a pump at many race tracks. Avgas ( aviation gasoline, also known as aviation spirit in the UK) is an aviation fuel used in aircraft with spark-ignited internal combustion engines. FAA Administrator Steve Dickson on Feb. 23 unveiled an industry-government initiative to eliminate the use of unleaded aviation fuel (avgas) by piston-engined aircraft by 2030. Leaded and unleaded aviation gas cost pretty much the same $5.50 to $6 a gallon according to airnav.org, a website that tracks fuel prices at airports around the country. I seem to recall that the AV fuel octane is measured differently than car fuel (not R+M/2). -. The FAA announced that fuel formulations from Shell and Swift have been selected to advance to Phase 2 engine and aircraft testing that will begin this summer and continue through 2018. FAA observed testing on a turbocharged Continental 550 similar to this one has shown GAMI's G100UL fuel is a drop-in replacement for 100LL. Avgas 100LL). An unleaded aviation fuel blend. Swift Fuels' Unleaded Avgas UL94 Available in Waco at Texas Aero. Fly Unleaded It Is Time To Get The Lead Out! While leaded gasoline was fully phased out in 1996 with the passage of the Clean Air Act, it still fuels a fleet of 170,000 piston-engine airplanes and helicopters.
In January, Santa Clara County in California issued the nation's first ban on . Toward this effort, ATIC is proud to collaborate with General Aviation Modifications, Inc., (GAMI) by providing its distribution expertise for the engineering company's high-octane unleaded avgas: G100ULTM. From what I read the product seems usable, and . The fuel is over a decade in the making, but there may still be a . Developing a commercially viable unleaded high-octane aviation gasoline proved to be a complex challenge due to a myriad of technical and economic issues. In the United . One would think we would have shouted it from the rooftops when available. Over 130,000 aircraft are already FAA-authorized to use Swift Fuels' UL94 Unleaded Avgas as a "drop-in ready" fuel, representing 66% of the US piston fleet. New fuel placard. Most recently, General Aviation Modifications Inc certified a direct unleaded replacement for 100LL called G100, reports AVweb. One other user of leaded fuels is motor sports. This move has been in the works for months and we finally took delivery of 8200 gallons this past Saturday. The FAA and industry continue to pursue all alternative unleaded avgas solutions, both within the PAFI R&D program and outside the program.. What is the active ingredient in the new manganese-based additive package? By. Avgas UL 91. Those small, low-compression engines aren't at risk of detonation during normal flight operations the way higher performing, higher compression engines are. These aircraft are predominantly used by private pilots and flying clubs and for tasks such as flight training and crop dusting. The unleaded fuel available at Reid-Hillview and San Martin is 94 octane and is FAA-certified as safe for use in approximately 68% of the piston-powered aircraft of the type that use the Reid-Hillview and San Martin airports. Mid-grade gasoline was introduced in 1986 as the United States began phasing out leaded gasoline. In 2011, the FAA stood up an unleaded avgas transition aviation rulemaking committee and in 2014 launched the FAA-industry Piston Aviation Fuel Initiative (PAFI), neither of which have generated . This is a carefully refined, light petroleum. July 27, 2021. It is a new fuel aimed at the general aviation market.UL 91 is a colourless, unleaded aviation gasoline that we designed initially based on Rotax engines - and has since been endorsed by Rotax for the 912 UL/A/F, 912 ULS/S and 914 ULF/F engines ( read the . This link provides some answers about the use of unleaded aviation fuel in aircraft piston engines. The STC for use of GAMI's proprietary high-octane unleaded avgas, G100UL, is currently for a limited number of normally aspirated 4-cylinder engines and is a constructive step forward in the development of an unleaded avgas. GAMI, an Oklahoma-based company, has dedicated years researching and developing an unleaded aviation fuel. Swift UL94 is compliant with all ASTM D7547 avgas specifications and D4814 auto gasoline . The survey sent out by the City a few months ago only received 50 responses, and although that is a respectable percentage of the . At the beginning of the project, GAMI developed an essential set of design requirements. FBOs & Tenants. "This STC is a positive step as we seek a fleet-wide solution for an FAA approved unleaded fuel," said AOPA President and CEO Mark Baker. The two mixes are in separate compartments. Supporters of keeping the airport say the unleaded fuel produced by Indiana-based company, Swift Fuels, has already been approved by the FAA to be used in more than 1,800 different kinds of aircraft. 16. Unleaded aviation gasolines having heats of combustion and octane qualities deemed necessary for use under actual service conditions are formed from blends of specified proportions of aviation alkylate, ether blending agent, a cyclopentadienyl manganese tricarbonyl and optionally other appropriate hydrocarbons falling in the gasoline boiling range. WASHINGTONFAA Administrator Steve Dickson on Feb. 23 unveiled an industry-government initiative to eliminate the use of unleaded aviation fuel (avgas) by piston-engined aircraft by 2030.
June 14, 2018 The FAA announced last week that it is temporarily suspending testing of the two potential unleaded aviation fuels within the Piston Aviation Fuels Initiative (PAFI) to further analyze test results from the two candidate fuels under study since 2016.. Those fuels, one each from Shell and Swift, were the final candidates to advance to full-scale engine and flight testing as . Petersen Aviation has STCs to allow dozens of models of airplanes to burn unleaded automotive fuel with octane levels as low as 87. However, it is not yet available in Europe but also not everyone can use it - your aircraft manufacturer must raise a .
Aircraft engines are air-cooled and run the exhaust valve at a significantly higher temperature than liquid-cooled engines. General Aviation Associations Welcome Gami's Unleaded Aviation Fuel STC. There were two grades of aviation gasoline produced in volume in Germany, the B-4 or blue grade and the C-3 or green grade, which accounted for about two-thirds of all production. Order "FOREVER" AVGAS STC On Sale Now for $100* LEARN MORE.
Avgas is the type of aviation fuel used in small piston engine powered aircraft within the general aviation community. Avgas remains the only transportation fuel in the United States to contain lead more than 222,600 registered piston-engine aircraft can operate on leaded avgas. This "performance drop in" 100LL replacement fuel will power piston aircraft - at least that is .
The fuel blend is provided by blending an unleaded aviation gasoline base fuel which may include iso-octane and iso-pentane, and an effective amount of a selected alkyl benzene to improve the functional engine performance to avoid harmful detonation sufficient to meet or exceed selected standards for detonation performance requirements in full scale aircraft . Aircraft Engines and Unleaded Fuels. Interestingly, Sunoco now has a 104 AKI (110 RON, 98 MON) unleaded race gas. Our goal is to fully replace 100LL with a 100-octane unleaded fuel within 3 years. The proposed sale of the JP-8 aviation fuel will enable Israel to maintain operational aircraft. It contains no ethanol, which is known to . After a 12-year quest, General Aviation Modifications Inc. (GAMI) has created an unleaded fuel that is a drop-in, fleet-wide solution that can be used in every spark ignition piston engine in the FAA database. The residents want the city to make that option available to . FAA's goal for an unleaded avgas is the long term solution that will, ultimately, allow for the elimination of lead emissions from aircraft that use leaded fuel. Thank you for Jeb Burnside's "Follow the Money" commentary in the April 2022 issue. We are extremely proud to help pioneer this movement to unleaded . A. A. Methylcyclopentadienyl Manganese Tricarbonyl (MMT), which is a metallic octane boosting additive that was invented in the late 1950's by Ethyl Corporation. #2 1800 gal 100LL combined with 900 gal of MoGas. Order UL94 Avgas.
It's easier to catch a neutrino in a jar than come across a fundamental change in general aviation, but it appears we just caught a drum-full.
Unleaded Avgas Approved. Since 2008, we've received a lot of questions about when the approval was going to be ready. GAMI, an Oklahoma-based company, has dedicated years researching and developing unleaded aviation fuel. The most common and reliable type of avgas is 100 octane Low Lead, also known as 100LL. According to one site, auto MON is roughly comparable to aviation octane rating up to 100, so this fuel would be about 98 airplane octane. Graphic courtesy of Textron Aviation. An aviation gasoline fuel blend includes an unleaded aviation gasoline base fuel, with an effective amount of selected alkyl benzenes to improve the functional engine performance to avoid harmful detonation sufficient to meet or exceed selected standards for detonation performance requirements in full scale aircraft piston spark ignition engines designed for use . Sept. 9, 2019. by Matt Thurber. UL94 Unleaded Aviation Fuel at KWVI. Moreover, aviation gasoline 100UL may be characterized by fewer losses during evaporation, because of the . That would solve a lot of problems with distribution and infrastructure - it's widely available in the US, a clear standard already exists, and it solves the lead problem - but it will come at a high cost. Such testing, including in-flight performance verification tests using a modified FAA Aero Commander 680E airplane, is being Do most cars use leaded or unleaded gas? Officials from the Community and Airport Partnership for Safe Operation . With this agreement, BAA Training is one of the first aviation academies in Southern Europe to use unleaded Avgas. Tim Roehl, president of Ada, Oklahoma-based GAMI, a company that is creating an unleaded aviation fuel, says that's about "one-tenth of 1 percent of what the fuel companies sell for automobiles, a. Aircraft that cannot use unleaded gas will need to obtain aviation fuel from other facilities. Aircraft engines also run at higher loads than automotive engines .
It is designed to work year-round without seasonal variations. The ultimate solution for inexpensive, readily available fuel for aviation.
The following from that answer should be noted - In July of 2021 the FAA approved Supplemental Type Certificates (STCs) authorizing use of G100UL high-octane unleaded . Swift Fuel's Unleaded UL94 Avgas is sold nationwide - priced competitively with 100LL and is expected to remain low subject to oil market volatility. While low octane unleaded fuels - less than 100 motor octane number (MON) - are a satisfactory alternative for many aircraft, they are generally impractical due to the following: Low octane unleaded fuels do not provide sufficient detonation protection for the portion of the data will also be used in developing a specification with the american society of testing and materials (astm) for an unleaded aviation gasoline that will replace the currently available 100 octane low-lead fuel.this development effort demonstrates the faa and industry involvement to ensure the availability of a safe and reliable fuel for the . Watsonville Airport is currently gauging pilot interest for making Unleaded UL94 Avgas available on the field (in addition to existing 100LL and JetA). See this answer for a general perspective on the use of unleaded aviation fuel. Can my Airplane use UL94? This is an 82 Octane Lean Mixture rating fuel and is approved for use in modern non turbo Avco Lycomings engines amongst others. Swift Fuels of Lafayette, Ind. July 28, 2021. ORDER MORE PLACARDS * Swift Fuels, LLC is now offering a "FOREVER" Avgas STC Certificate for every piston aircraft in the US or Canada.