Richard W. Powell
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View article: Heatshields for Aerogravity Assist Vehicles Whose Deceleration at Titan Saves Mass for Future Flagship Class Exploration of Enceladus
Heatshields for Aerogravity Assist Vehicles Whose Deceleration at Titan Saves Mass for Future Flagship Class Exploration of Enceladus Open
View article: Enabling and Enhancing Science Exploration Across the Solar System: Aerocapture Technology for SmallSat to Flagship Missions
Enabling and Enhancing Science Exploration Across the Solar System: Aerocapture Technology for SmallSat to Flagship Missions Open
View article: Guidance and Control Approaches that Enable Titan Aerogravity Assist for an Enceladus Mission
Guidance and Control Approaches that Enable Titan Aerogravity Assist for an Enceladus Mission Open
Whitepaper #489 submitted to the Planetary Science and Astrobiology Decadal Survey 2023-2032. Topics: other planetary bodies: Saturn, Titan, Enceladus; other science themes: Guidance and Control, Aerocapture, Aerogravity Assist; technology…
View article: Aerocapture as an Enhancing Option for Ice Giants Missions
Aerocapture as an Enhancing Option for Ice Giants Missions Open
View article: Qualitative Assessment of Aerocapture and Applications to Future Missions
Qualitative Assessment of Aerocapture and Applications to Future Missions Open
We examine the current state of readiness of aerocapture at several destinations of interest, to identify what technologies are needed and to determine if a technology demonstration mission is required, before the first use of aerocapture …
View article: THE DEMISE OF THE U.S. TREASURY'S myRA RETIREMENT PROGRAM: WHY IT FAILED
THE DEMISE OF THE U.S. TREASURY'S myRA RETIREMENT PROGRAM: WHY IT FAILED Open
In 2017 the U.S. Treasury announced the termination of its myRA program.This program, enacted during the Obama era in 2015, was designed to get more Americans to save for retirement.The program operated as a starter for a Roth IRA account …
View article: A robust method to integrate end-to-end mission architecture optimization tools
A robust method to integrate end-to-end mission architecture optimization tools Open
End-to-end mission simulations include multiple phases of flight. For example, an end-to-end Mars mission simulation may include launch from Earth, interplanetary transit to Mars and entry, descent and landing. Each phase of flight is opti…