PTFE Liner NSA Pictures.

This is it on the ground. The PTFE sheet (actually half a Dupont Teflon baking sheet - recovered of course) is between the parachute and the straight sides of the nose cone.

The hemispherical end of the nose cone does not need to be lined as the parachute only pulls away from it and does not slide along it.

This shows the drogue having pulled the nose cone away from the main chute which still has the PTFE liner partially wrapped around it.

The enhanced inset view shows that the liner is coming away from the end of the chute as the rocket pulls the other end.

This picture shows the main chute almost open with the PTFE liner just above it.

If you are doing this for a Science Olympiad, you should consider tying the PTFE sheet, the nose cone and the main chute together using appropriate lengths of cord so that you don't exceed your length limit and it all comes down in 'one piece'.

Fully open, the two parachutes with their respective loads float to earth.

The PTFE liner on the right falls significantly slower than the other two so if you are launching in a bit of a breeze, you may like to consider fastening the liner to the nose cone with a short cord so that once it has come out and allowed the main chute to deploy, it comes down quicker.

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