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Hopper Design Alternative

Hopper Design Alternative. Josh Lukasak Attitude Group Lead Lunar Decent Phase Lead 02/26/09. 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 262.7 kg

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Hopper Design Alternative

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

  2. Hopper Alternative for GLXP [Josh Lukasak] [Attitude] (2) • 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 262.7 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

  3. 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.

  4. [Josh Lukasak] [Attitude Group Lead] (4) Back Up Slides

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