Workshop 1 : Make a canopy of any shape Materials : a plastic bag, string Tools : adhesive tape, scissors Drop your car model attached to the canopy from.

Workshop 1 :• Make a canopy of any shape • Materials : a plastic bag , string• Tools : adhesive tape , scissors• Drop your car model attached to the canopy from

the second floor.• Record the time to reach the ground floor.• Where does it land ? How many meters away ?

Car with Parachute

Conclusions :• What factors to make a good

parachute ?• Big canopy• Long line• Many lines• Light• Shape of canopy• Drop in vertical ?! Wind problem

Workshop 2 :

Search the internet for photos of parachute of different designs such as rectangular , sphere , multiple canopies…

Internet references

• http://precision.aerodynamics.com/tutor/• http://inventors.about.com/library/inventors/blparachute.htm?ia

m=howstuffworks_SKD&terms=parachute

• http://www.howstuffworks.com/ejection-seat2.htm

• http://www.square1.com/Catalog/Catalog.html

• http://www.nationalparachute.com/page3.html

http://showcase.netins.net/web/herker/ejection/chute.html#quarter%20bag

http://www.xs4all.nl/~pdj/chute.htm

Workshop 2 :

Parachute

Pilot chute

canopyapex

Suspension lineskirt

Steering line

Workshop 2 :

WHY ?

Fall in vertical or in curve ?Workshop 2 :

Car with ParachuteWorkshop 3 :

• Repeat workshop 1

• Rope or string - length & how many ?

• Plastic sheet – shape & size ?

• How long to reach ground ?

• Fall in vertical or in curve ?

Big canopy , long rope ?

Big canopy , short rope ?

small canopy , short rope ?

Different shapes of parachutePlastic sheet , adhesive tape

X mm X / 2 mm X / 4 mm

Make a 8-sided polygon with one cutMaterials : plastic sheet

Tools : scissors

cut

References :Workshop 3 :

Car with Parachute : making of a 8-sided canopy

Up side down

Workshop 3 :

Car with parachute thro’ a tunnel

• how to hide & open parachute ?

• http://www.xs4all.nl/~pdj/chutfold.htm

Workshop 4 :

Program for parachute sizes

Package of parachute

Unpackaged of parachute Ground floor

WHY ?

+

+

Parachute : canopy & lines

Do you need a packet to hold the parachute ?

A bag

Rectangle

Too small

Pilot chute

Big chute with pilot