Continental Airlines, fourth largest airline in the United States, successfully conducted a test flight on a Boeing 737-800 with one engine powered by a Jatropha Curcas mix.

The no-passenger flight lasted 1 hour and 45 minutes and originated from the Bush Intercontinental Airport.
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An Air New Zealand Boeing 747-400 powered by 50% jatropha curcas based jet fuel had successfully completed a flight lasting for about two hours. One engine of the 747 was fueled by a 50% blend of Jatropha Curcas based jet fuel while the remainder was your average A1 jet fuel.
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Interesting Article from MIT Review. UOP, a division of Honeywell, has successfully designed and mass produced biofuel based jet fuel made out of Jatropha Curcas seeds. Their fuel can be used in regular jet engines without need for modifications.

According to UOP their Jatropa Jet fuel packs more energy than regular jet fuel which could lead to better mileage for commercial jets. It also has a lower freezing point than conventional jet fuel allowing it to perform well in the colder temperatures of higher altitude. Could this make it capable for use in sub space applications?
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