Editing Ceremonial ship launching (section)

===Air-bag===
{{main article |Airbag launching}}
Sometimes ships are launched using a series of inflated tubes underneath the hull, which deflate to cause a downward slope into the water. This procedure has the advantages of requiring less permanent infrastructure, risk, and cost. The airbags provide support to the hull of the ship and aid its launching motion into the water, thus this method is arguably safer than other options such as sideways launching.<ref>{{cite web|url=http://max-groups.com/ship-launching-airbags-best-ship-launching-method/|title=Ship Launching Airbags, the best ship launching method?|work=Max Groups Marine|date=25 October 2016 |url-status=live |archive-url=https://web.archive.org/web/20230417091651/https://max-groups.com/ship-launching-airbags-best-ship-launching-method/ |archive-date= Apr 17, 2023 }}</ref> These airbags are usually cylindrical in shape with hemispherical heads at both ends.