This project was completed as part of a competition between Texas A&M, University of Maryland, and Utah State University to create a conceptual design of a hypersonic transport aircraft. The objective of this project was to design a high-speed aircraft with a projected IOC of 2035 that can meet FAA certification requirements, travel trans-Atlantic routes, meet structural requirements and have a good business case for development. This aircraft's conceptual design was evaluated by leading industry experts from Boeing, NASA, AFRL, and USAF during the competition's final review.
As a Co-Team leader, I was responsible for ensuring teams have clear communication and all teams have updated information as well as making final engineering judgment calls. I also served on the thermal/structural design team. As a thermal analyst, I determined the thermal response of the TPS to the Mach 5 air and the effect this had on the airframe's structure. As a Co-Team leader, I also assisted on critical path items including the development of the inlet system and the aerodynamic analysis toolchain, the trajectory analysis, and the flight simulator.
KEVIN's internal structure and layout were designed to ensure sufficient fuel for long trans-Pacific flights, as well as the required CG location for stability at all phases of flight. KEVIN utilizes a Synthetic vision system for crew and passengers so windows are not included.
KEVIN is designed with a 4500nmi range allowing for trans-Pacific itineraries when connecting over Hawaii and Alaska.
My team developed two in-house 1D codes to determine the non-linear material thermal response of the aircraft's skin to the heating loads of the Mach 5 flight for the full trajectory. These codes were validated using data collected during the XB-70 program. In addition, these codes were validated using ANSYS FEA 2D and 3D solutions for the proposed skin stack-up. The nose and leading edges were not compatible with these codes however so ANSYS solutions were used to ensure that the designed skin insulation was sufficient to ensure the aircraft's internal temperature did not exceed limits.
KEVIN is powered by 4 combined cycle turbo-ramjets. These engines provide enough thrust to takeoff in their turbofan mode without afterburners. Then, once over water away from fragile ears, the afterburners can be ignited accelerating to Mach 2.5 where the turbine engine is shut down and all air is diverted to the ramjet. This ramjet accelerates KEVIN to it's cruising speed of Mach 5