Guide:Aventeur

Aventeur
Class Overview
Category	NASA/ESA (later ISA) mission spacecraft
Operational	2008-2039
Constructed	6
Dimensions
Length	126.0m
Beam	28.5m (plus antennas)
Height	28.5m (plus antennas)
Mass	2,810 mt
Performance
Max Speed	0.02c
Endurance	8 months (w/o cryosleep) up to 30 years (w/ cryosleep)
Complement
Crew	3
Passengers	12 (cryosleep)
Tactical Systems
Shields	normally none
Laboratories	2x planetary sciences
Auxiliary Craft	2 exoatmospheric landers, 2 work pods
Delta Dynamics	SRM #302

Background: Delta Dynamics

In the post-Eugenics War period and following the loss of production capability of DY series spacecraft due to the fall of the Great Khanate, several concerted efforts were made to re-establish and further humanity's presence in the solar system. The first of these, the Aphrodite mission spacecraft series, was first launched in 2001 and saw considerable series construction over the next 14 years. The ships explored all the way inward to land on Venus and outwards to the asteroid belt, serving as the vanguard for critical efforts to bring back needed resources for further space-borne construction.

The first of the Grand Tours. Christopher, Fontana and O’Herlihy launched on Aventeur I, the Lewis and Clark (2009), riding via Jupiter (2014) to Saturn (2020) with a payload of 12 scientists in deep cryosleep. It was only at the return of the spacecraft, in 2039, that reports were released on the team’s discovery of evidence of alien mining at Enceladus and Dione. By that time, the Aventeur design was propulsively completely outdated: Lagan, Murray and Ulrich and their coldsleep chattel on Aventeur V, the Frémont, were actually recalled halfway to Neptune when it became evident that they would be preceded there by expeditions launched much later.

However, Venus and Mars were not awe-inspiring. Humanity, albeit the enhanced variety, had already set foot on both of those planets and the world's leaders knew that something grand must be announced and launched to encourage hope and growth. The Grand Tour series of missions were planned by the newly established Western Alliance Space Agency (to be operated jointly by NASA and ESA). When possible, aligning planets would dictate the mission, but the ion drives that came from the Eugenics Wars did not require precision routing; all the outer planets could be visited, when properly planned, including the grandest of the dwarfs, Pluto.

The spacecraft designed to do this, the Aventeur series, was the first of the non-DYs to be developed for truly long-term and deep space intrasolar travel. Aventeur I, the Lewis and Clark, was the most inspiring of these missions. Led by Commander Shaun Geoffrey Christopher, the ship would see its crew suspended into deep cryosleep shortly after launch, only to be awakened as they approached Jupiter. After six months of study of the Jovian system, they would return to suspension until they were awakened in the Saturnian system, again to spend six months exploring the rings and moons. The plan called for a 2009 launch, a mid-point arrival at Jupiter in 2014, and then arrival at Saturn in 2020, before finally returning home to Earth in 2039.

With six long-term missions on the roster, a modular design formed the core aspect of the Aventeurs. The proposed idea for the ship was centered around a truss, from which mission-specific equipment and supplies could be attached, giving each of the ships their own unique profile. However, the mission planners for Aventeur I wanted to provide everything, including the kitchen sink and its spare parts, to ensure the crew would be self-sufficient in the face of any adversity. Twelve design-specific cargo pods, referred to as mission modules, were loaded on all forward magnatomic adhesion points, with the astronauts well-trained in pulling from storage and assembling the planet-designated sensors while on final approach, for attachment at the mid-vessel hardpoints. This cargo vessel-as-explorer concept synched so well with all mission goals that the idea was adopted for each of the follow-on ships.

Other notable features with the Aventeur design included a command bridge module that served as an eject-able lifepod, a feature that would be repeated in several other long-range explorers in the coming decades. On the aft, three revolutionary radiator panels employed newly-developed anti-photon field emitters, behind extremely fine water tubules, giving off a deep red glow and providing cooling effects far in excess of what was needed.

The mission was an outstanding success, but the news shared with certain scientific circles was figuratively Earth-shaking: evidence of mining—obviously by extraterrestrials—was clearly documented on the Saturnian moons of Dione and Enceladus.

Five more vessels were constructed following the 2009 launch of Lewis and Clark, but one never launched and the Aventeur V mission, the Frémont, was even recalled, once it was obvious that emergent propulsion technology would see later vessels arriving at any planetoid in the system long before she could ever make Neptune.

Missions

Vessels of the Aventeur series were named after explorers of the North American continent.

• Lewis and Clark - Aventeur I (2009-2039): Jupiter & Saturn
• Ponce de León - Aventeur II (2012-2026): Uranus
• Alexander Mackenzie - Aventeur III (2016-2028): Neptune
• John Powell - Aventeur IV (2019-2037): Saturn & Pluto
• John Frémont - Aventeur V (2022-2029): Jupiter & Neptune (recalled in 2026)
• Stephen Long - Aventeur VI (2025): Saturn & Uranus (canceled)

Gallery

Aventeur mission spacecraft

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Other Images

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  Lewis and Clark approaches Saturn
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  Establishing orbital insertion
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Supporting Documents

• Blueprints
• Starship Recognition Manual #302 - Report: Aventeur Mission Spacecraft

Notes

• In order to not have the Columbus series craft as too fast (arriving at destinations pre-First Contact), all max speeds have been drastically reduced, (except for the DY-50).

• The infobox must still be updated with Timo's named ships (only). (Remove this when complete.)

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