AAE450 Spring 2009 Hopper Design Alternative Josh Lukasak Attitude Group Lead Lunar Decent Phase Lead 02/26/09 [Josh Lukasak] [Attitude] (1)

AAE450 Spring 2009 Hopper Alternative for GLXP  The hopper design for the 10 kg and 100g payload cases has considerable savings. –Lander/Rover total system mass of 278 kg –Hopper total system mass of kg –Reduction in two COM systems, one on the Lander and one on the rover, totaling over $200,000.  Complexity from a mission stand point may eliminate this from a viable option for the low mass payloads [Josh Lukasak] [Attitude] (2)

AAE450 Spring 2009 Hopper Scale Up [Josh Lukasak] [Attitude] (3)  Based on initial scale up calculations the hopper seems to be the most viable option for the arbitrary payload case.  The Lander/rover system delivers more to the lunar surface but requires a large rover to move the payload. –For the DNEPR arbitrary case the Lander/Rover system can deliver 555 kg compared to 415 kg from the hopper case. –This requires that for the Lander/rover case to be viable a rover of only 140 kg must be created to transport 415 kg the required 500 meters.  This assumes that the arbitrary payload must touchdown and relight.

AAE450 Spring 2009  Back Up Slides [Josh Lukasak] [Attitude Group Lead] (4)