George Hathaway describes decades of gravity control experiments with Frederick Alzofon, Hal Puthoff, Eugene Podkletnov, Pharis Williams, John Brandenburg, Viktor Schauberger, Lance Williams & John Hutchison. Hathaway is a registered professional engineer with 50 years of experience investigating anomalous phenomena, and focuses on rigorous, experimentally-focused research into unconventional physics, including replications of notable experiments in gravity control and propulsion. Key experiments discussed include: the Alzofon experiment (dynamic nuclear polarization for gravitational field modulation), a high-pulsed power antenna experiment testing Hal's polarizable vacuum hypothesis, replications of Eugene Podkletnov's rotating superconductor experiment, Pharis Williams' 5D gravitational theory experiment, Dr. John Brandenburg's GEM theory experiment, and an attempt to replicate Victor Schauberger's levitation technology. Hathaway emphasizes the importance of meticulous experimental design, control experiments, and rigorous error analysis to distinguish genuine effects from artifacts, highlighting instances where previous claims were not substantiated. He also discusses his involvement with John Hutchison's experiments, noting inconsistencies and instances of fabrication. Our interview concludes with Hathaway recommending the Alzofon experiment as a crucial area for future research in gravity manipulation. • The Alzofon Experiment: This project is focused on dynamic nuclear polarization to manipulate subatomic particle spins. Contrary to popular belief, Mr. Hathaway clarifies that Fred Alzofon's work wasn't aimed at propulsion, but rather at modulating the Earth's gravitational field. This distinction is crucial. While not explicitly claiming propulsion, Mr. Hathaway observed a correspondence between Alzofon's results and propulsive effects seen in Unidentified Aerial Phenomena (UAP). He's been involved with the experiment since the 1990s, collaborating with Fred's son, Daniel, and replicating experiments using different apparatus. The observed movement of a ruby sphere within liquid helium at specific microwave and magnetic field frequencies remains a compelling, albeit complex, area of study. The challenge lies in differentiating genuine gravitational effects from magnetic artifacts, a hurdle addressed by a new 3 GHz experiment currently underway. • The High-Pulsed Power Antenna Experiment: This experiment, inspired by Hal Puthoff's polarizable vacuum hypothesis, aimed to alter the vacuum structure for energy or propulsion. While the high-voltage pulses were successfully generated, a lack of a clear sample/measurement strategy, coupled with funding issues and personnel changes, led to the project's termination. However, Mr. Hathaway proposes revisiting this experiment using pulsed voltage instead of DC, leveraging advancements in femtosecond laser technology. This approach, he believes, could unlock greater energy input and more precise measurements. The timing of this renewed interest is particularly relevant given recent research into zero-point energy (ZPE) by figures like Harold Sonny White and Dr. Garrett Modell. • Podkletnov's Rotating Superconductor Experiment: Mr. Hathaway's unique replication of Eugene Podkletnov's gravity control claims, involving a rotating YBCO superconductor, stands out. While he successfully replicated the experiment with significantly improved capabilities, no gravitational effects were observed, only thermal effects. This meticulous replication, using non-electronic balances to avoid magnetic interference, provides valuable data contradicting Podkletnov's initial claims. His findings, published in Physica C, offer a crucial counterpoint to the persistent mythology surrounding this experiment. • The Podkletnov Force Beam Experiment: This experiment, co-authored by Podkletnov and Dr. Giovanni Modanese, claimed the creation of a force beam capable of remarkable feats. Mr. Hathaway's replication attempts, despite reaching target voltages and employing various iterations, yielded null results. This highlights the importance of rigorous replication in validating extraordinary claims. • Pharis Williams' 5D Gravitational Theory Experiment: This experiment, designed to measure weight change using diverging/converging electric currents, also resulted in a null finding. Mr. Hathaway's involvement in this experiment, possibly the only one of its kind, underscores his commitment to exploring diverse theoretical frameworks. • John Brandenburg's GEM Theory Experiment: This experiment, testing Brandenburg's unification theory predicting directional force, utilized a three-phase rotating magnetic system and a highly sensitive gravimeter. Again, the results were null, demonstrating the importance of empirical validation even for promising theoretical models. • Victor Schauberger's Repulsine Experiment: This experiment, conducted at Hal Puthoff's Institute, involved testing a device based on Schauberger's designs. The results were negative, leading Mr. Hathaway to express skepticism about Schauberger's claims, particularly given the historical context of Nazi Germany. • Lance Williams' Kaluza Theory Experiment: This experiment, attempting to adapt Kaluza theory for gravitational manipulation, yielded a null result, published in the scientific literature. • John Hutchison Experiments: Mr. Hathaway's involvement with filming and documenting John Hutchison's experiments provides valuable firsthand accounts, highlighting both the sporadic nature of the observed effects and instances of apparent fabrication in later years.