Turbofan Jet Engine




Turbofan engine model has modular structure. Includes Fan&Booster, HP Rotor, LP Turbine, Fwd and Aft Frame, LP Shaft and Case. Building process can be splitted into several teams working in parallel (e.g. during workshops). The final assembly allows to understand the overall architecture of the engine and its most important functions:
- Two independent rotors (LP & HP)
- Active Clearance Control system
- Variable Stator Vanes system
- Variable Bleed Valve system
- FADEC logic (Mindstorms EV3 + Arduino with Motor shield)

1. FAN_BOOSTER - 22 pages
3. HP_ROTOR - 33 pages
4. LP_TURBINE - 34 pages
5. TURBINE_REAR_FRAME - 104 pages
6. CASE, CASE_12H, CASE_3H, CASE_6h, CASE_9H - 120 pages
7. ASSEMBLY_PARTS - 37 pages
8. CONTROL_PANEL - 23 pages
9. FINAL_ASSEMBLY – 44 pages + Part List - available on bricksafe.com for free.

Total 574 pages, 5126 pieces

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Name Turbofan Jet Engine
Designer mr_majczel
Designed 2019
Inventory 4915 parts
Theme Mindstorms > EV3


  • 3 months, 3 weeks ago ZeroQc Level 16
    Wow! Your Turbofan Jet Engine has an impressive engineering complexity! Outstanding moc! Congrats!
  • 4 months, 3 weeks ago lbrix Level 20 MOC Designer
    It looks great. Very good idea! One of my favourite MOCs. I hope you will build more like this.
  • 6 months, 3 weeks ago BertZelf Level 13 MOC Designer
    Hello again,

    Another question, if I may ;-)
    Looking at the parts list in the final assembly pdf, I see parts not found in the rebrickable inventory.
    Obviously the arduino and the motor shield are missing as those are NO LEGO parts. These are mentioned in the description, so  that is OK.
    But the other parts I miss look like LEGO:
    As an example the blue pneumatics pump and a transparent part on the same pdf page.(last page).are not in the rebrickable inventory. Not even an idea what kind of part that is..
    On the page with most white parts, there are a number of parts that lack a partnumber under the image.
    They look like turbine blades .but I cannot find the part-id anywhere (rebrickable / bricklink).
    Any idea if we can have a complete Rebrickable inventory so I can order my missing parts before I buy the building instructions, please ?

    Thanks and kind regards,

    Forget it I did not see the "Turbofan Engine Model Desc.pdf"
    For me too many 3D printed parts, non-LEGO bearings and cable reconfigurations. Beyond my target. Sorry.

    [edit2] Thank you Mike my questions are answered in your reply on my questins below.
  • 7 months, 1 week ago aeromoe Level 8
    Is there a way you can update the "Features:" portion spelling of the word vains to the correct spelling vanes?  This turbofan engine MOC looks great.  I will buy the instructions, not necessarily to build it but just to appreciate the build techniques in this MOC. Thank You.
    • 7 months, 1 week ago mr_majczel Level 6 Designed this MOC
      Typo is now corrected, thanks. Within a week I should finish video.
      • 7 months, 1 week ago aeromoe Level 8
        Excellent.  Thanks.  Now I remember to purchase the instructions.
  • 7 months, 2 weeks ago nigel1975 Level 24 PRO
    Would you be able to share more info on how the functions works, particularly the FADEC logic. It does look fascinating and something I would like to build, unfortunately the instructions are too expensive for me.
  • 7 months, 2 weeks ago xilanium Level 25 MOC Designer
    Awesome! Do you have a video of it by any chance?
    • 7 months, 1 week ago mr_majczel Level 6 Designed this MOC
      Thanks, I'm just working on video.
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