To Cluster or not to cluster Semroc Saturn IB build

Discussion in 'Low Power Rocketry (LPR)' started by EvryThngIsAOk, Sep 5, 2019.

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4 engine cluster or single 24mm

  1. Cluster

    8 vote(s)
    72.7%
  2. 24mm running D

    0 vote(s)
    0.0%
  3. 24 mm capable,E motors

    3 vote(s)
    27.3%
  4. 29mm

    0 vote(s)
    0.0%
  1. Sep 5, 2019 #1

    EvryThngIsAOk

    EvryThngIsAOk

    EvryThngIsAOk

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    so at the moment of decision building my Semroc Saturn 1b.
    To cluster 4 18mm or 1 24mm.
    Higher altitude for the cluster and a certain coolness effect with extra smoke, but more chance of failure. Lower flight on a 24mm but could bump up to a composite or a E black pound. Less cool,but less risk.
    Thoughts.?
     
  2. Sep 5, 2019 #2

    kuririn

    kuririn

    kuririn

    BARGeezer TRF Supporter

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    Fly 'em all with interchangeable motor mounts.
     
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  3. Sep 7, 2019 #3

    dpower

    dpower

    dpower

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    It's just so cool seeing it fly on 4 C motors. Too heavy for a D12 or E12, but an E15/E18 would do nicely. Mine's flown on 4xC6 motors many times. Even if 1 doesn't light, it still flies reasonably well, though I think that's only happened once. It doesn't fly so well on 2xC6-3 + 2xB6-4 if one of the C motors doesn't light, barely enough altitude to get the laundry out.
     
  4. Sep 9, 2019 #4

    Nytrunner

    Nytrunner

    Nytrunner

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    Where's the 8x A10s?
     
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  5. Sep 10, 2019 #5

    zog139

    zog139

    zog139

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    I built mine with four C6-3's and four A10-PT's. Also staged it to another C6-3.
     
  6. Sep 10, 2019 #6

    Nytrunner

    Nytrunner

    Nytrunner

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    Flip out fins? Sounds fantastic
     
  7. Sep 10, 2019 #7

    Cape Byron

    Cape Byron

    Cape Byron

    The BAR formerly known as Skippy-2

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    Is to cluster ever even a question? :D
     
  8. Sep 10, 2019 #8

    EvryThngIsAOk

    EvryThngIsAOk

    EvryThngIsAOk

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    Well the cluster won out over all.
    So decided to use John Pursley’s Accurr8 wraps s all fins and one piece thrust structure so it will actually be flying of 4 18mm reloads due to added weight.
    Really like the look of the correct height thrust structure and the scale fins with the hold downs.
    Wraps add some detail to the tank tubes and of course made painting a zero thought game
     

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