if you've ever seen someone rocket up out of the water in thebrighterdark's dogfight server, which is now being hosted again, and wanted to do it yourself, congratulations. there is a specific and reliable way to accomplish this feat and turn the parachute into the undisputed best mobility item in the game
step 1: take a parachute from the spawn
step 2: go into any body of water
step 3: decide which direction you want to go and hold the appropriate movement key
step 4: hold space and rapidly double click your parachute. your goal is to take it out and put it away as fast as possible otherwise you will be ricocheted back into the ground and die of fall damage
step 5: if all went well you are now at an absurd height and flying through the air in your intended direction
note: if you are moving down instead of up (which is the point of holding space) you will fly into the ground and die or go below the map
this works on any server with the parachute enabled and water to enter (ie: most dogfights)