No, on a long runway this is not necessary.
If you have a parachute, then it allows your water rocket to land safely.
With a parachute
a parachute will save your life because you land properly and you dont fall face first plus the wind will contriol the parachute
when you clickalt and f4 it quits the window
The man jumped out of a plane using a parachute so he would fall safely to the ground. We used a parachute so we could land safely on ground.
A parachute allows a person to jump out of a plane and land safely on the ground. A disadvantage is that (rarely) a parachute may fail to fully open and injury and death is likely.
For xbox 360 ONLY, press RT to put the parachute on, get on a building or in a helicopter, jump off, press A to activate the parachute, you can press Y to remove your parachute but you will fall either safely in water, or to your death on land.
By parachute. See related link for a photo.
Use nothing
Well, when the parachute is opened, and you jump, the air gets in and pushes the parachute, trying to make it go up, while gravity is working to push it down, which makes you slow down and land safely.
The F4 is the Fantastic Four!
To be able to jump from aircrafts and land on ground without getting injured.