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T+ 46 Days Engineering Log

Posted 03-25-2015 at 09:42 AM by Dantassii
Tags sstv

MCC #4 was performed yesterday with no flags. The burn providing 172 m/s of delta V was relatively small compared to initial estimates for MCC #5 and #6. All 4 EHEs uses for the burn performed nominally including EHE #3.

Due to the quickness of our Jupiter to Saturn transit, the actual delta V requirements for the 3 MCCs are difficult to calculate until the actual day of the burn. Estimated delta Vs for MCC #5 and #6 are on the order of 300 m/s at this time. We may have to perform...
HUMONGOUS IMS shipbuilder
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Old

T+ 33 Days Engineering Log

Posted 03-12-2015 at 11:38 PM by Dantassii
Tags sstv

After about a day orbiting Jupiter, we made a retrograde burn with 6 EHEs to drop us into a cloud scrapping orbit of Jupiter, then made a 25 minute burn with all the forward EHEs for the TSI at closest approach.

We are now on our way to Saturn.

The EHE's had to be brought down from 100% thrust about 10 minutes into the burn as the G load reached 6Gs and then we dropped it even further at 12 minutes to keep the G load down to 4 Gs or less for the remainder of the burn....
HUMONGOUS IMS shipbuilder
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Old

T+ 30 Days Engineering Log

Posted 03-09-2015 at 09:47 AM by Dantassii
Tags sstv

After 5 very busy days at Europa Station, EHE #3 is now back at 100% functionality. To keep our schedule, it was decided to replace all 3 components that may have caused the problem and retest the engine. All tests passed during the test burn, which was used to adjust the orbit of Europa Station to align it better with the L2 point between Europa and Jupiter. The replaced parts will be returned to the Lunar Station for evalulation by ETV in a few weeks.

We departed Europa station...
HUMONGOUS IMS shipbuilder
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Old

T+ 24 Days Engineering Log

Posted 03-04-2015 at 12:02 AM by Dantassii
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JOI burn performed without any flags and in 9 hours we will perform our Europa Orbit Insertion (EuOI) burn using 2 + 2 of our EHEs (forward + backwards). Approximately 6 hours after EuOI we will perform another burn which will raise our orbit to the L2 point between Europa and Jupiter and then an hour or so after that we will arrive at Europa Station.

All but EHE #3 were used in the JOI. We are hopeful that EHE #3 can be repaired during our stay at Europa Station. There are sufficient...
HUMONGOUS IMS shipbuilder
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Old

T+ 21 Days Engineering Log

Posted 02-28-2015 at 12:48 PM by Dantassii
Tags sstv

EHE #3 is still showing some minor issues during testing so it will not be used for the JOI burn. We are hoping we can repair it during our 5 day stay at Europa Station.

MCC #3 was performed yesterday with no additional problems. Total delta V for MCC #3 was 672 m/s. Our trajectory is such that a 17 minute burn of our remaining EHEs will allow us to arrive at Europa one quarter of an orbit after JOI at which point a 5 minute burn of our remaining EHEs will put us into orbit around...
HUMONGOUS IMS shipbuilder
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