Hey! This thing is still a Work in Progress. Files, instructions, and other stuff might change!

Mordecai Murphy's Dart

by buffington, published

Mordecai Murphy's Dart by buffington Oct 25, 2012
1 Share
Download This Thing! Customize Order This Printed Tools & Utilities

Thing Info

11834Views 1042Downloads Found in R/C Vehicles
Report Thing


This is the right wing of a rubber band powered, peanut scale model airplane designed by Walt Mooney called Mordecai Murphy's Dart.

The goal is to recreate the model in way that allows for most, if not all, of the parts to be 3D printed and flyable using current micro RC electronics.

Where possible, parts have been designed to negate the need for rafts or support material.


The first part of this work in progress is the right (and left, if mirrored) wing.

The ribs of the wing are about 0.56mm thick - which is about the thinnest wall I've been able to get out of my Makerbot Replicator.

Print details:

Layer height: 0.2mm
Infill: 100%
Extra shells: 0
Raft: no raft or support material

It's worth noting that the airfoil on this wing is prone to funky stall behavior. The original design uses a more symmetrical airfoil. But the flat bottom airfoil prints really well, so maybe it's worth it?

More from R/C Vehicles

view more

Thing Info

11834Views 1042Downloads Found in R/C Vehicles
Report Thing


Liked By

View All


Give a Shout Out

If you print this Thing and display it in public proudly give attribution by printing and displaying this tag. Print Thing Tag

All Apps

This App connects Thingiverse with Makeprintable, a cloud-based mesh repair service that analyzes, validates and repairs most common mesh errors that can occur when preparing a 3D design file for p...

App Info Launch App

Kiri:Moto is an integrated cloud-based slicer and tool-path generator for 3D Printing, CAM / CNC and Laser cutting. *** 3D printing mode provides model slicing and GCode output using built-in...

App Info Launch App
KiriMoto Thing App

With 3D Slash, you can edit 3d models like a stonecutter. A unique interface: as fun as a building game! The perfect tool for non-designers and children to create in 3D.

App Info Launch App

would probably work good to flip it and just set z to 50% to give it some symmetry but still overall positive lift

This is a great wing. I printed it and am interested in the rest of the airplane. Did you convert the other parts into 3D files?


 Noooo,  if you did that, you would double the chord yes, but the airfoil would be symetrical.  So how is it the same? 

I reckon for starters just stick with flat on the bottom -- it works fine for the Zaerotech Z22:  http://zaerotech.com/design/Zaerotech_Z22_Series.htmlhttp://zaerotech.com/design/Za...

Similar to what grabercars said, you could always just print a vertically mirrored wing and glue it underneath.

I think if you increased the chord (made the wing thicker) than that would help a lot with the stalling problem.  It should give more lift at slower speeds, without inducing too much extra drag.  You could probably go as far as to Double the chord, but probably 150% would be sufficient.

You could always design the airfoil to be similarly curved on the bottom and just split it down the center and print each half.