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T+105 Engineering Log

Posted 05-23-2015 at 09:42 AM by Dantassii
Tags sstv

MCC #6 was performed early this morning with a delta V of 400 m/s with no flags on any of the 4 EHEs used.

The transit from Jupiter to Saturn has been nominal with no unexpected engineering problems. The main bearing on centrifuge #3 needed a little extra time for its scheduled maintenance but nothing that a little patience couldn't handle. The advice of Gemini 10/Apollo 11 astronaut Mike Collins concerning movement in space ("Take it slow and don't rush.") is the best...
HUMONGOUS IMS shipbuilder
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Old

T+ 76 Engineering Log

Posted 04-24-2015 at 08:43 AM by Dantassii
Tags sstv

MCC #5 was performed using a total of 6 EHEs with no flags. Total delta V for the burn was 475 m/s. Current estimates of the delta V for MCC #6 are around 300 m/s however as with all the mid-course burns for this mission, the exact delta V of the burn won't be known for certain until much closer to the burn date.

We have calculated that a series of phasing burns of 1-5 minutes in duration performed during the last 10 days before the SOI burn will reduce the total delta V requirement...
HUMONGOUS IMS shipbuilder
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Old

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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