Lifter is a nickname for a levitating device based on Biefeld-Brown effect. With this fascinating effect, levitation can be reached without moving or rotating elements. Static voltage is applied between asymmetric electrodes and a force towards the small electrode is generated. This device was studied experimentally and the results are presented. Former results published by NASA and others set theoretical and experimental limits for this device efficiency, claiming it is below practical use. We show that the geometry of the device is crucial for the trust generation and we demonstrate configurations where much higher thrust can be generated. A thrust of ~9 times higher than the theoretical prediction is demonstrated, passing the practical efficiency limits set by NASA. That means that practical air craft is applicable based on the suggested configuration. Such an air craft will have no rotating or moving parts, will be silent and may lead to new type of air crafts and applications.
