I have seen people use those folding toiletry type bags for trach emergency stuff and meds. We have a seperate "airway bag" that we got from the hospital that is labeled as such. It only holds our ambu bag, back up trachs, trach ties, etc. We keep diaper bag type stuff in a seperate backpack. For us, if there was an emergency, I don't want to dig through clothes and diapers to get what I need to respond. I agree that I feel like bag check will take FOREVER! But, I don't know how to avoid multiple bags. This is what we bring everywhere so I am sure it is what we will bring to the parks:
-Ventilator in it's own case that has a pocket on the side which usually just has the power cord and a couple spare parts.
-Cough Assist in it's own travel bag with a large pocket that has the tubing, power cord, and extra parts
-Feed pump in it's own insulated backpack
-Diaper bag with typical baby/toddler stuff
-Airway bag with all medical supplies
-Suction Machine in it's own bag with side pocket that has it's charger in it
We probably will not be rope dropping with my youngest because he has somewhat lengthy respiratory routine that we have to go through in the morning that we cannot start until 8 because of his overnight feeding. So we won't hit the parks until 9 or so most days. Hopefully the lines for security won't be insane by then.