31039 Biplane




This biplane is an alternate of 31039 Blue Power Jet.

It features a rotatable propeller, 4 movable ailerons, movable rudder and movable elevators.

Instructions are for download as PDF. Also available are digital files for LDD, LDraw and Stud.io. I use LDD for building digitally, Stud.io for rendering and MLCad with LPub for making the instructions.

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Name 31039 Biplane
Designer Nequmodiva
Designed 2018
Inventory 461
Theme Creator > Model > Airport
Alternate Build of 31039-1 Blue Power Jet
Gingerbread House


  • 5 months, 2 weeks ago Enith2478 (1955)
    This looks amazing! Thanks for sharing.
  • 9 months, 1 week ago ifilin (3K)
    Son has built it on holidays. Super biplane. Thank You very much for the instruction.
    • 9 months, 1 week ago Nequmodiva (11K) MOC Designer
      Thank you for your comment, it's nice to hear that it is being built.
  • 1 year, 2 months ago vizard (351)
    Congratulations on winning 1st place in the Creator Alternate Build Competition for your bi-plane MOC. Well deserved !
  • 1 year, 5 months ago Tomik (30K) MOC Designer
    I like your biplane - it is very well done.
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Help Guide - BI File Types

This MOC also has a 3D digital file available (eg LDD, MPD, etc): 3D Model

Submitted by Bobthebuildr April 7, 2019
More stable tail mod no extra parts
Submitted by Bobthebuildr April 7, 2019
Includes small mod of front
Submitted by Bobthebuildr April 7, 2019
Small mod of front no extra parts used