500 W Bonus Blade Plans.
Six original sample sheets from the complimentary three-blade turbine plan set offered with custom BladeCalc PDF-plan orders. Explore the chord sections, hub layout, angle guides and blade-root details.
What came with the custom plans.
The original package shows a 500 W, 730 mm blade with a design tip-speed ratio of 7 and an inverted-camber NACA 2412 section.
The source presented this as a free additional set of drawings with a custom BladeCalc PDF-plan purchase. It is distinct from the custom chord-section plans produced for an individual order: the bonus illustrates a specific three-bladed rotor and the associated blade-construction details.
The original text links the sample to Warlock’s 500 W blade project and describes its inverse airfoil orientation as reversing the direction of rotation while maintaining comparable efficiency. That is a claim from the historical plan description, not independent validation of output or performance.
Cover, blade arrangement, chord-section sequence and wooden-root layout.
Airfoil sections, spacing guides, hub dimensions and construction layout.
Angle-guide stencils, supporting structure and root construction details.
Six sheets from the original plan set.
The samples are shown in their original order. Open a sheet to inspect the drawing in the Warlock image viewer.
Materials, rotor layout and the blade skeleton.
The opening sheet introduces the three-blade design, followed by an illustrated chord-section and hub layout.
Chord stencils and hub construction.
Print-style airfoil sections are shown alongside dimensions and exploded views for the blade hub and angle-guide arrangement.
Angle guides and the blade root.
Two further sheets show cutting guides, their placement on the skeleton, and the sectional pieces used around the blade root.
These six source images are unchanged, low-resolution previews. They are not print-scale templates and are not a substitute for the original plan PDF.
Keep designing with BladeCalc.
Use BladeCalc to explore a custom blade design, or read the Starting Guide for the original illustrated workshop sequence that follows chord-section plans through to a fabricated blade.
The plan-set details and inclusion claim are reproduced from Warlock Engineering's historical preview page. The six original JPG previews have not been edited. The full-resolution bonus-plan PDF is not provided as a public download on this page.