“The airplane performed perfectly,” test pilot Rich Jankowski said. “There were no problems. It was textbook.”
The plane burned 3,600 pounds of a 50-50 jet fuel-biofuel mix in one engine and roughly 3,700 pounds of traditional fuel in the other, meaning the test batch was somewhat more efficient, he said.
The biofuel mixture used was a mixture of algae and jatropha derived fuels. The algae based fuel was provided by Sapphire Energy and the jatropha based fuel was provided by Terasol Energy.
Source : Houston Chronicle