* [https://youtu.be/J-HmIxQ10ec?t=11107 Parachute calculation] ''YouTube'' <br />Excellent introduction with fundamental concept to some advance parachute calculation. A Great ressource. | * [https://youtu.be/J-HmIxQ10ec?t=11107 Parachute calculation] ''YouTube'' <br />Excellent introduction with fundamental concept to some advance parachute calculation. A Great ressource. |