Au sujet du 100 LL

Pat Ben · Post by **Pat Ben** » Wed 02 Jul, 2008 14:26

Lu sur un forum américain...

June 4, 2008

Lycoming Announces Auto-Gas Approval Program Email this article |Print this article

By Mary Grady, Contributing editor

Recognizing global concerns about the immediate and long-term availability of aviation-grade 100LL fuel, Lycoming Engines announced this week that it is working to get approval for the use of unleaded automotive gasoline for its standard-compression-ratio O-360 and IO-360 product lines. Ian Walsh, general manager for Lycoming Engines, told AVweb the approval will not require any modification to the engines, the fuel will not need any additives or special treatment, and there will be no degradation in engine performance. "It's essentially a paperwork drill, to make this happen," he said. He expects to have approval from the FAA by this fall, but owners cannot implement the change until the airplane also gets certified. That is up to the manufacturers, Walsh said, and he could not estimate how long that would take, but said it is also essentially a paperwork issue. The engines will require a specific type of unleaded 93 AKI automotive gas, designated as Euro Norm EN228 (in Europe) or ASTM D4814 (in the U.S.). This fuel is not difficult to find, Walsh said, but users must verify that they are getting that particular type -- not just any unleaded auto gas will do.

The unleaded automotive gas is generally cheaper than avgas and provides an alternative in areas where avgas is scarce. Also, the continuing use of leaded avgas provokes environmental concerns. The popular O-360 and IO-360 engines are found on many GA aircraft, including Cessnas, Mooneys, Diamonds, and more.

Pat Ben · Post by **Pat Ben** » Wed 02 Jul, 2008 14:27

Et voici une réponse de Piper

Piper is aware of Lycoming's plans for approving mogas for operations in their IO-360 engines. We hope this approval will include the O-360 and TIO-540 engines as well. We only use the IO-360 engine in the twin-engine Seminole and single-engine Arrow. The Archer and Warrior use the O-360 while the Matrix and Mirage use the TIO-540. You can bet that Piper will pursue mogas approval for the full product line of Lycoming-powered airplanes as soon as Lycoming gets the approval for their engines. Stemming the rising cost of flying is a priority for Piper and we see the use of mogas in our complete Lycoming-powered product line as a way for doing so.

Bob Kromer

VP, Sales, Marketing,

& Aftermarket Support

Bob Cadi · Post by **Bob Cadi** » Wed 02 Jul, 2008 17:57

Hé.
Aucune modifications nécessaire

Spécial mogas, tout en parlant du besoin pour les régions éloignées.
Me fait rire car leur '' Spécial mogas '' sera encore plus râre que le 100LL.
Partout dans les pourvoiries et loin, c'est juste du Bon vieux Ordinaire sans plomb un peu désoctanisé avec le temps et la tank au soleil.

Nous avons tous notre réponse maintenant...

Bob