{"schemaVersion":"1.0","revision":"2026-10-07.1","items":[{"id":"printing","title":"A good flight starts at the printer.","summary":"Choose your sheet, check the scale, and print just one side.","sections":[["Choose your paper","Use US Letter or computer paper (8.5 × 11 inches), or A4 (210 × 297 mm). Computer paper comes in different sizes: check the packet and choose the matching file. Start with ordinary uncoated printer paper."],["Print one side only","The two-page PDF contains a fold sheet and a separate optional guide. Print page 1 single-sided. Keep page 2 on-screen, or print it on a separate sheet. Never print it on the back of the fold sheet."],["Use actual size","Choose 100% or Actual size, portrait orientation, and the correct paper size. Turn off Fit to page. Measure the 25 mm scale mark with a ruler before folding. Normal printer margins may hide the ends of dotted lines; use the guide to extend those folds to the paper edges."],["Begin at number 1","Place the sheet printed side up with a short edge at the top. Match each number to its guide step. A number may cover two matching folds. Go slowly; a hidden number does not mean you need to print the back."]],"url":"https://paperairplanetemplates.com/guides/printing/"},{"id":"fold-symbols","title":"Read the paper, one number at a time.","summary":"A small set of marks with a clear job to do.","sections":[["Dotted lines show creases","A dotted line shows where to bend the sheet. It does not mean cut. The step text tells you which edge to move and which way to fold."],["Numbers match the guide","Do the numbers in order. On First Flick, 2 and 3 each mean a matching pair of folds. 1 and 4 use the same center crease. 7 and 8 are actions, not new creases."],["Arrows show movement","Move the indicated paper edge in the direction of the arrow, then compare it with the finished stage. Blue shading distinguishes layers in diagrams; it is not a requirement to use colored paper."],["When a mark is hidden","Folded layers can cover a number. Stop and use the guide picture, paper edges, and existing crease to line up the next fold. Do not guess a new crease or unfold everything just to find ink."]],"url":"https://paperairplanetemplates.com/guides/fold-symbols/"},{"id":"flight-fixes","title":"A little tweak. A new flight.","summary":"Observe your flight, then change just one thing.","sections":[["Nose-diving?","Use a level, gentle release and check both wings match. If it still dives, try a tiny matching upward bend at the back of each wing. Test again before making a larger change."],["Up, then down?","Try a flatter, gentler throw. If you bent the rear edges upward, flatten them a little. A hard upward throw can hide how the plane glides."],["Always turning?","View the plane from the nose. Check that the wing heights, angles, and creases match. Straighten a bent tip. If it still turns, test indoors where wind is not changing between throws."],["Make a fair comparison","Use the same plane, paper, place, and gentle launch. Change only one thing and repeat three throws. Flight results vary; we do not promise a particular distance."]],"url":"https://paperairplanetemplates.com/guides/flight-fixes/"},{"id":"flight-experiment","title":"Every throw tells a story.","summary":"Compare three flights, make one change, and try again.","sections":[["Pick a clear space","Throw at ground level into a clear space away from faces, roads, animals, stairs, and breakable objects. A still indoor space makes comparisons easier."],["Choose one question","For example: does a tiny upward bend at the back of both wings reduce a dive? Keep everything else the same."],["Record three throws","Measure straight from your starting line to the first landing point. Use the same units each time. Write down the plane, paper, conditions, distance, and what happened."],["Compare, then repeat","Put your three distances in order. The middle one is the median. Record the shortest and longest too. Make one small change, then repeat. A single lucky throw is not the whole story."]],"url":"https://paperairplanetemplates.com/guides/flight-experiment/"}]}