فنون
الجمال والعناية
حِرَف
الثقافة والتاريخ
ترفيه
البيئة
الطعام والمشروبات
المستقبل الأخضر
الهندسة العكسية
SCHOOL PROJECTS
العلوم
رياضة
التقنية
الأجهزة القابلة للارتداء
Building Leonardo da Vinci's Parachute — The Sealed Linen Pyramid of 1485
Emma

أنشأه

Emma

2. يوليو 2026SE
16
0
0
0
0

Building Leonardo da Vinci's Parachute — The Sealed Linen Pyramid of 1485

In a notebook around 1485 Leonardo da Vinci sketched a pyramid of sealed linen and wrote: 'If a man have a tent made of linen of which the apertures have all been stopped up, and it be twelve braccia across and twelve in depth, he will be able to throw himself down from any great height without suffering any injury.' For 500 years people assumed it could never work. In 2000 the skydiver Adrian Nicholas built it to Leonardo's exact dimensions and descended smoothly beneath it — proving the Renaissance master right. This blueprint reconstructs that rigid-frame linen pyramid: cut and sew the canopy, seal it airtight, lash the frame, and rig the harness.
متقدم
16

التعليمات

1

Understand Leonardo's design

Leonardo's parachute is a four-sided pyramid of sealed linen, twelve braccia (about 7 metres) square at the base and twelve braccia tall. Unlike a modern soft parachute it is held open by a rigid frame. The sealed cloth traps a large volume of air, and the drag of that trapped air slows the fall.
2

Cut the four canopy panels

Cut four tall isosceles triangles of strong linen — one for each sloping face of the pyramid. Each triangle has a base of about 7 metres and rises to the apex. Add a generous seam allowance along every edge for stitching.

المواد لهذه الخطوة:

Linen FabricLinen Fabric60 square meter

الأدوات المطلوبة:

Sharp ScissorsSharp Scissors
3

Sew the panels into a pyramid

Stitch the four triangles together edge to edge to form the pyramid canopy. Punch the stitch holes with the awl and sew with strong waxed cord in a double row so the seams can carry the load of trapped air.

المواد لهذه الخطوة:

Binding RopeBinding Rope20 أمتار

الأدوات المطلوبة:

AwlAwl
4

Seal the linen airtight

Rub warmed beeswax and boiled linseed oil into the whole canopy so the weave is filled and 'the apertures are all stopped up', as Leonardo insisted. A sealed canopy traps the air instead of letting it leak through — this is what makes it work.

المواد لهذه الخطوة:

BeeswaxBeeswax500 gram
Boiled Linseed OilBoiled Linseed Oil1 لتر
5

Lash the square base frame

Cut four straight, light poles and lash them into a rigid square frame the full width of the canopy base. This frame holds the mouth of the pyramid open against the rush of air.

المواد لهذه الخطوة:

Green Wood Poles (1-2m)Green Wood Poles (1-2m)4 قطع
Binding RopeBinding Rope10 أمتار

الأدوات المطلوبة:

Hand SawHand Saw
6

Raise the apex struts

Run light poles from each corner of the base frame up to a single apex point and lash them there, forming the pyramid's skeleton so the canopy keeps its shape and cannot collapse inward.

المواد لهذه الخطوة:

Green Wood Poles (1-2m)Green Wood Poles (1-2m)4 قطع
Binding RopeBinding Rope10 أمتار

الأدوات المطلوبة:

KnifeKnife
7

Mount the canopy on the frame

Lash the sealed canopy to the base frame and up the apex struts so it stands as a taut, rigid pyramid with no slack cloth to flap or spill air.

المواد لهذه الخطوة:

Binding RopeBinding Rope10 أمتار

الأدوات المطلوبة:

AwlAwl
8

Rig the harness lines

Tie four strong suspension lines from the corners of the base frame down to a central harness, all the same length so the load hangs level and the trapped air stays balanced above the jumper.

المواد لهذه الخطوة:

Binding RopeBinding Rope20 أمتار

الأدوات المطلوبة:

KnifeKnife
9

Understand why it works

The 7-metre sealed canopy presents a huge area to the air. The drag on that area is enough to hold a person's fall to a safe, steady speed. The rigid frame keeps the pyramid fully open the whole way down — the reason Leonardo's shape descends stably where a limp sheet would not.
10

Test responsibly

Treat this as an engineering reconstruction, not a stunt. Inspect every seam and lashing under load, and demonstrate it as a scale model or a static drop test only. The historic full descent was made by a trained skydiver carrying a modern reserve parachute — never jump a home-built parachute.

المواد

5

الأدوات المطلوبة

4

مواد المخططات المرتبطة

You can swap these in

Can't get one of the materials? Swap it for an equivalent — these work just as well.

Recommended for this build

Products makers often use with builds like this one.

Hardwood BlockFrequently used with this build's materials
Beech LumberUsed together and in similar builds
Dowel RodUsed together and in similar builds
Sharp KnifeFrequently used with this build's materials
HacksawUsed together and in similar builds
Sloyd Carving KnifeUsed together and in similar builds
Iron NailsFrequently used with this build's materials
Hand AugerUsed together and in similar builds

المخططات ذات الصلة

هذه المخططات تشارك المعرفة مع هذا — التقنيات والمواد والمبادئ

Setting Up a Warp-Weighted Loom — Vertical Loom Weavingبواسطة Tex
Building a Wattle Fence — Woven Wood Panel Constructionبواسطة Woody

Related blueprints

Other builds that share materials, tools, or techniques with this one.

Building Leonardo da Vinci's Ornithopter — The Flapping-Wing Flying Machine
Building Leonardo da Vinci's Armored Car — The Ancestor of the Tank
Building Leonardo da Vinci's Self-Propelled Cart — The First Programmable Robot
Building Leonardo da Vinci's Revolving Bridge — The Swing Bridge for a Marching Army
Building Leonardo da Vinci's Aerial Screw — The Ancestor of the Helicopter
Building a Food Drying Rack — Sun and Wind Preservation Framecooking

CC0 ملكية عامة

هذا المخطط مُصدر بموجب CC0. يحق لك نسخه وتعديله وتوزيعه واستخدامه لأي غرض، دون طلب إذن.

ادعم الصانع بشراء منتجات عبر مخططه حيث يكسب عمولة الصانع يحددها البائعون، أو أنشئ نسخة جديدة من هذا المخطط وضمّنه كرابط في مخططك لمشاركة الإيرادات.

النقاش

(0)

تسجيل الدخول للمشاركة في النقاش

جارٍ تحميل التعليقات...