Larrabee Prop Blocks for Indoor Free Flight models v1.5.1

!!!! Please use a recent Dev version of openSCAD (2026.xxxx). The older version 2021.xxx has issues.!!!!

V1.5.1 - just a little bug fix...
V1.5: - added rib template generation and ability to create a counter clockwise (cow_prop) version of the prop block.

V1.2 - Bug fixes, cleanup, etc
This SCAD generates an STL for a Prop Block that can be used to create a Larrabee style propeller as described in his paper "Design of Propellers for MotorSoarers". These types of propellers are designed for minimum induced losses at low reynolds numbers.

Note, you'll need both SCAD files : Larrabee.scad is the main file. loft.scad is an extra library that is required.

Oh, this really works best if you update your openSCAD to pre-release vers 26.x

Some hints:

• when you first open the file, close the "Editor" window... prevents fat-finger decapitation of the code :-)