The Slowest fall / simple aerodynamics

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The discussion focuses on creating a model that maximizes fall time over a three-meter distance using common materials. Suggestions include a paper towel parachute designed with holes for air circulation and a propeller model with three blades. The key challenge is effectively utilizing air resistance to slow the descent. Participants seek clarification on the design requirements, including the need for a hole for attachment and maintaining a controlled path. Overall, the goal is to explore innovative designs that enhance the model's ability to fall slowly.
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Homework Statement



The problem is to construct a model out of ordinary materials such as paper, blotting paper, foil, tights and so on, that is supposed to fall along about 3 metre long runner with as longest time as possible. (with the inspirations like maple seed)

The Attempt at a Solution



I was thinking about a paper towel parachute with holes in it that would keep the air circulation not to swing around... Or the propeller model with tube (has to have a hole for attaching it to the runner) and 3 blades like in helicopter...

What is the best way to use air resistance in this case?
I'm sorry for such dumb questions =_=,
thank you
 
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"to fall along about 3 metre long runner with as longest time as possible."

Please elaborate...
 
There is a line attached to a celling and there should be a hole in the model so that it goes along a restricted space (to measure time equally)
 

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