Here are the requirements for the streamer recovery system.  Read them carefully.

The portion of the rocket containing the egg and altimeter must return to the ground using only one or more streamers as its deployed recovery system. The rest of the rocket may be attached to this portion, or may return separately as long as it does so safely. Each streamer that is used must be a separate single rectangular strip of thin flexible material such as paper or plastic that is at least five times as long as wide, and each must be attached to the rocket only by a single line that connects to one or more places on a single one of that streamer’s narrow sides.

We have come up with some ideas that need to be tested.  The concept is to increase drag, but some ideas many not be "legal" for TARC 2010.

• Stiffen the leading edge of the streamer with tape but leave it flexible enough to fold.
• Stiffen the leading edge of the streamer with a wood dowel.
• Stiffen the leading edge of the streamer with a bendable wire.
• Use two streamers connected to the same point of the cargo unit.
• Use two streamers connected to different sides of the cargo unit.
• Use three streamers connected to different sides of the cargo unit to form a triangular cavity.
• Connect a streamer to the outside of the cargo unit at the center of gravity.
• Add a yoke between the streamers to separate them.
• Try terry cloth (bath towel) as a streamer.
• Try denim (jeans) as a streamer.
• Paint a streamer to stiffen it.
• Starch a streamer to stiffen it.
• Pleat the streamer using a hot iron.
• Increase the cargo unit length to increase drag.

We have a few streamers and can buy some more.  But we can also make some.  Here is what we have gotten from Top Flight Recovery in 1.7oz. and 1.1oz rip-stop Nylon fabric.

• 4inch by 40inch
• 6inch by 60inch
• 7inch by 70inch

Some documents that we want to consider...

• Streamer Calculations
• Streamer Recovery