I marked them with black circles. What are they for? enter image description here

Source (modified)

  • 3
    in raft mode I'd guess a place for the tent to prop itself up with – ratchet freak Mar 28 '16 at 23:28
  • 3
    Those are where the ladies hang their hand-bags on the way down. :) – FreeMan Mar 29 '16 at 17:40
up vote 10 down vote accepted

@ratchet freak is correct. The protrusions are canopy poles, where the canopy in the evacuation slide/raft is propped up. The image below shows a canopy propped on them.

Canopy

Image from tulmar.com

From the document:

The canopy is supported in the center in 4 places by inflatable yellow “CANOPY END SUPPORTS” and “CANOPY CENTER SUPPORTS”, and supported along the sides by 14 numbered supports on the top of the slides inflatable structure.

Here's a closeup of the support from the same document.

Canopy support

  • 6
    Has there ever been an actual event where a slide was required to be used in this way? – woakley5 Mar 29 '16 at 3:57
  • 3
    where is the actual canopy stored? – Phantomazi Feb 8 '17 at 23:11

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