One of the questions I wanted answered at this year’s AirVenture in Oshkosh was “what is the latest on unleaded avgas?” To find out, I did numerous interviews and attended several seminars. [Read more…]
One year after four fuels were selected for testing as potential replacements for leaded avgas, progress remains steady, according to a report at AOPA.org, which notes that the first phase of testing should be completed later this year. Testing now is concentrated on material compatibility and rig testing, with the second phase of testing — in engines and aircraft — slated to begin in early 2016, according to the report.
“The FAA has said it hopes to have an unleaded replacement for avgas certified by 2018, and the program is on target to reach that goal,” the report concludes.
Working with avgas producers and distributors, Swift Fuels is making plans to supply unleaded 94 MON avgas to select regions in the United States and Canada. The premium quality unleaded fuel, tailored for lower-octane piston-engines, is already FAA certified and meets ASTM standards for aviation gasoline, according to company officials.
The fuel will not replace 100LL now sold at airports for high performance aircraft. [Read more…]
In the 1970s, the automotive world switched from leaded to unleaded fuels and the oil companies did a lot of research on knocking and how to prevent it. One of the big projects involved octane requirement increase (ORI).
In this program, cars were rated for octane requirement when new and then every 2,000 miles. The octane requirement increased until it leveled off at about 20,000 miles. [Read more…]
California was the first state to attempt to remove the lead from 100LL by lawsuit. Unfortunately, the result of the unsuccessful CEH lawsuit only increased the cost of 100LL in the state.
Now, along comes Oregon, which wants to tax the lead out of 100LL. I have a feeling this method will appeal to other states, so prepare to see it find traction in your state legislature. [Read more…]
A wise man once said, “If you can keep your head when all about you are losing theirs, then you have evidently not grasped the gravity of the situation.”
Late in 2011, a little known environmental organization, perhaps totally unknown in aviation circles, Center For Environmental Health (CEH) filed a lawsuit against “30 companies that sell and/or distribute lead-containing aviation gas (avgas) at 23 California airports, calling on the companies to provide safer alternative fuels.”