* [https://www.narom.no/undervisningsressurser/the-cansat-book/the-primary-mission/parachute-design/cross-parachute-design/ Cross Parachute Design] | * [https://www.narom.no/undervisningsressurser/the-cansat-book/the-primary-mission/parachute-design/cross-parachute-design/ Cross Parachute Design] |