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→Estimate the Drag Coefficient
When terminal velocity is known (measured), you can deduce the ''Drag Coefficient'' from the estimated velocity in free chute (if the CanSat were not equipped with a parachute).
When terminal velocity is known (measured), you can deduce the ''Drag Coefficient'' from the estimated velocity in free chute (if the CanSat were not equipped with a parachute).
== Flat Circular Parachute ==
The parachutes are extremely common in the hobby rocketry fields. Thanks to their simple design, they are cheap and easy to manufacture. They also offers reliable parachute.
The trade-off is the Draft Coefficient (Cd) which is not as high for a given cloth diameter. It is hard to go wrong with a flat circular (or flat hexagonal) parachute.
The typical drag coefficients range goes from 0.75 to 0.80.
You may also find some informations about flat parachute on this [https://www.narom.no/undervisningsressurser/the-cansat-book/the-primary-mission/parachute-design/flat-parachute-design/ NAROM page].
== Resources ==
== Resources ==