Electrohydrodynamic (EHD) thrusters generate thrust by using two electrodes to ionize the ambient fluid and create an electric field. They are better known for being relatively silent, being all electric and for their operation without needing any moving parts. EHD thrusters work on corona discharge. A corona discharge device generates an ionic wind and thrust, when a high voltage corona discharge is struck between sharply pointed electrodes and larger radius ground electrodes. The phenomenon known as the Biefeld-Brown effect or ionic wind has been the subject of study since its discovery with the aim of being applied to aircraft propulsion. Electrohydrodynamic (EHD) thrusters have been developed in a thorough and detailed way since 2000. Subsequently, some attempts have been made to extend them to electric-powered atmospheric aircrafts. The objective of this report is to explore the first principles behind the operation of an EHD propulsive systems and layout a numerical model for calculations of performance parameters such as thrust and thrust to power ratio. Lifter designs and tests with arcuate electores by apart from general designs are also being explored. Electrohydrodynamic (EHD) thrusters generate thrust by using two electrodes to ionize the ambient fluid and create an electric field. They are better known for being relatively silent, being all electric and for their operation without needing any moving parts. EHD thrusters work on corona discharge. A corona discharge device generates an ionic wind and thrust, when a high voltage corona discharge is struck between sharply pointed electrodes and larger radius ground electrodes. The phenomenon known as the Biefeld-Brown effect or ionic wind has been the subject of study since its discovery with the aim of being applied to aircraft propulsion. Electrohydrodynamic (EHD) thrusters have been developed in a thorough and detailed way since 2000. Subsequently, some attempts have been made to extend them to electric-powered atmospheric aircrafts. The objective of this report is to explore the first principles behind the operation of an EHD propulsive systems and layout a numerical model for calculations of performance parameters such as thrust and thrust to power ratio. Lifter designs and tests with arcuate electores by apart from general designs are also being explored. Electrohydrodynamic (EHD) thrusters generate thrust by using two electrodes to ionize the ambient fluid and create an electric field. They are better known for being relatively silent, being all electric and for their operation without needing any moving parts. EHD thrusters work on corona discharge. A corona discharge device generates an ionic wind and thrust, when a high voltage corona discharge is struck between sharply pointed electrodes and larger radius ground electrodes. The phenomenon known as the Biefeld-Brown effect or ionic wind has been the subject of study since its discovery with the aim of being applied to aircraft propulsion. Electrohydrodynamic (EHD) thrusters have been developed in a thorough and detailed way since 2000. Subsequently, some attempts have been made to extend them to electric-powered atmospheric aircrafts. The objective of this report is to explore the first principles behind the operation of an EHD propulsive systems and layout a numerical model for calculations of performance parameters such as thrust and thrust to power ratio. Lifter designs and tests with arcuate electores by apart from general designs are also being explored.