Each guide should leave you able to finish a fold, recognise a flight pattern, or run a comparison, and know what the result does and does not show.
Where the instructions come from
The 44 plane guides are generated from the app's current folding catalog each time the site is built: step titles, instructions, measurements and the diagrams all come from the same source, including redesigned noses and wings and the stunt trims. Measurements are given for US Letter (8.5 × 11 in) and A4 (210 × 297 mm), rounded to the nearest ⅛ inch as the app does. The diagrams are drawn on Letter; A4 gives a very similar shape with slightly different crease positions.
The notes on what makes each plane different, what to check and how to launch it are written by hand for that plane.
Simulation versus real flights
The app includes a flight simulator. Anything it produces is labeled as simulation. We have not run controlled physical flight tests of the 44 designs, and the guides do not rank them by real-world distance or hang time. Groupings like "built to glide" follow the app's design filters, which describe intent.
Sources
For aerodynamics we point to primary educational references such as NASA Glenn's Beginner's Guide to Aeronautics. Explanations and procedures are our own. Worked numbers in the experiment guide are labeled illustrative.
What we do not claim
No "world's best" plane, no guaranteed distance, loop or return flight, and no claim that every adjustment has been physically tested on every paper. Check any advice against your own plane.
Corrections
Email hello@foldandsoar.com with the page, the passage and what you saw. We compare it with the app and fix the guide, and the page's modified date changes when an instruction does.
Advertising
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