Tonka (fuel) necessary for the mixture to work as desired, rather than fail catastrophically, is a function both of the ingredients' purity, and of their temperature during use. Tonka (fuel) Tonka (also TONKA-250 and R-Stoff) is the name given to a German-designed rocket propellant first used in the Wasserfall missile; it has also more recently been used by North Korea but found its greatest applications (under the name TG-02) in the Soviet Union, for example, in the propulsion projects of the A.M. Isayev Chemical Engineering Design Bureau. Its name is a reference to the tonka bean; as it was invented during the
Vanilla production in French Polynesia major producers of the crop, with native families involved in its growth from "seed to pod." However, in the 20th century, the Chinese, who came initially as labor for the plantations, became the primary actors in processing the crop for, marketing to, and making the crop available to the international market, though still some farms are owned by people of French and native origins. Vanilla is grown on small patches of land both as a single crop as well as an inter crop. As it needs lot of water for growth, it is largely grown on the rainier windward side