Fuegodeth

Fuegodeth t1_j44fgfu wrote

Reply to comment by zz_z in How do giraffes breathe? by NimishApte

Fun fact: The Blue Angels don't wear G-suits because they maneuver so closely and don't want the suits to impact their controls during displays.

From their FAQ: https://www.blueangels.navy.mil/faq/

G-suits are designed with air bladders (pockets) that inflate and deflate to keep a pilot's blood from pooling in the pilots' legs while executing sharp, unpredicted combat maneuvers. Unlike combat flying, the Blue Angels demonstration pilots know the maneuvers they will fly prior to execution, so each pilot knows when one will be experiencing heavy gravitational forces. Anticipating the changes in gravitational forces allows the Blue Angels demonstration pilots to combat G-forces with muscle contractions. Additionally, G-suits would detrimentally impact flight safety.The Boeing F/A-18's control stick is mounted between the pilot's legs. The Blue Angels have a spring tensioned with 40 pounds of pressure installed on the control stick that gives the pilot a "false feel." This allows the pilot minimal room for un-commanded movement. The pilots rest their right arms on their thighs for support and stability while flying. Therefore, inflating and deflating air bladders in a G-suit would interrupt this support and stability, causing un-commanded aircraft movement.

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Fuegodeth t1_j053h6j wrote

Glue of the month hasn't been updated since 2003. I know how to glue Expanded Polypropylene (EPP) to itself. Use E6000, which used to be called GOOP. It's a room temperature vulcanizing rubber cement that adheres well and will stay flexible once set. Also, 3M90 spray adhesive works well on EPP if you have a large contact area to deal with.

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