Page History

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• Parachute Sizing

• Sustainer (estimated weight: 15.8 lbs)

• 1 drogue: 18 inch diameter

• 1  main: 48 inch diameter

• Booster (estimated weight: 103 lbs)

• 1 drogue: 36 inch diameter

• 1 main: 96 inch diameter

• Goal terminal velocity: 30 ft/sec, main parachute Cd: 2.2

• Research on parachute manufacturers:

  • 
    

Deployment Bags/Cloth: 

• Deployment

• Multistage recovery system

• Think about the snatch load - reduce snatch load by keeping it in a deployment bag or shell

• Should have two sections - a section for the canopy and a section for the lines - to reduce tangling

• Individual lines stored in individual sleeves to prevent tangling

• ****want lines first deployment

• Could put the lines in a bag and put the canopy inside a sleeve which is stored in a protective flap

• Material - fire-resistant Nomex (to shield parachute from heat of expulsion charge)

• Drogue shell?

• parachute liner as replacement?(Fruity chutes sells them lol)

• simplified parachute bag; good for CO2 deployment?

Lines:

• Research into line materials:

• Currently technora; will co2 have any effect on the lines?

• Lines Diagram:

• Phoenix: https://wikis-mit-edu.ezproxyberklee.flo.org/confluence/download/attachments/147325224/Phoenix%20Lines%20Diagram%20Printout.pdf?version=1&modificationDate=1596563231000&api=v2 

• Line Sizing Resources
  • Hermes Webbing Line Sizing: Hermes Webbing Lengths

• • https://wiki.rit.edu/pages/viewpage.action?pageId=229713880
  • https://richsrockets.wordpress.com/2015/10/02/shock-cords/

Soft Goods Failure Modes:

• Webbing failure modes: Hermes Webbing Failure
• LINE TANGLING!!!!
• TD failures
  • e-match shorting
  • wet black powder or TD isn't pressure sealed so black powder can't combust

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