Generate custom paper helicopter PDF templates according to your own measurements.

1. Select the number of paper helicopter templates to generate.
2. Customize the paper helicopter design according to the requirements of your paper helicopter experiment project by adjusting parameters and factor levels in Table 1, if needed. Feel free to alter the default factor labels A, B, C, etc., by substituting them with your preferred letters.
3. Populate the design matrix in accordance with the experimental runs that you plan to carry out. In the design matrix, each row corresponds to a different paper helicopter, and each column, labeled with letters A, B, C, etc., represents the factor from Table 1 that affects the paper helicopter template dimensions. The cell at the intersection of a row and a column will contain either a '-' or a '+', indicating the level of the corresponding factor for that particular paper helicopter. The design matrix defines the specific configuration for each paper helicopter template that will be generated in the final PDF.
4. Click "Submit Order" to generate the PDF file containing paper helicopter template in different sizes, tailored according to your own dimensions and choice of factor levels in the design matrix. Here is a free paper helicopter pdf template^* that demonstrates the kind of output to expect.
5. Download and print the PDF containing your custom paper helicopter templates, ready for assembly and experimentation. Follow the guidelines in the HELICOPTER DESIGN section for assembling your paper helicopters.

^*Note: This PDF contains two distinct paper helicopter templates: one with all '-' factor levels, and the other with all '+' factor levels, respectively. These templates are provided for illustrative purposes only and cannot be used in a paper helicopter experiment that adheres to the default values given in Table 1 - these templates were built using different values for the parameters and factor levels, see the cover page in the PDF file.