The engine has the potential to be utilized with an efficiently optimized nozzle in a planetary ascent/descent pressure-fed system with a vacuum specific impulse of up to 360 sec with throttling capability for future exploration of Mars. The proposed program addresses the need to support investments on key technologies and design concepts that may transform the path for future exploration of Mars or other near earth objects. Additionally the LMPPE can be used on KTE's Radially Segmented Launch Vehicle (RSLV) family of earth-to-orbit launch vehicles that will provide transportation for NASA payloads ranging from nano-sats to Delta II class planetary missions. The proposed program is an enabler to the Radially Segmented Launch Vehicle (RSLV) system currently under development by KT Engineering. KTE has been developing an integrated earth-to-orbit space transportation system, ground infrastructure, and a business concept that challenge aerospace paradigms regarding vehicle design, hardware fabrication, and operations. Several US Government customers, including the US Air Force, US Army, DARPA, and other DOD agencies have, along with NASA, invested over $20M to develop the RSLV to support a wide range of payloads, from nano-sat size to Delta II and EELV-class missions.