Water rocket

[ManuelP]

Hi,
I plan building water rockets with a project class. The plan is to equip a rocket with a smartphone shoot it up into the sky and land it safely with a parachute.
It would be interesting to monitor acceleration and hight over time and calculate vertical speed.
Maybe i could use the elevator experiment but i cant test it right now because of a missing air pressure sensor. Is it possible to start the experiment with remote access and read out the data once the smartphone is back.
Manuel

[Sebastian Staacks]

Sure, that should be no problem. If you lose the wifi connection, the app will still continue and you can simply reconnect to get your data. But I would not be surprised if your wifi connection works through the whole flight as the range is quite good outside.

However, you might want to use a different experiment configuration than the elevator experiment, because this one only records the z component of the acceleration. I would imagine that you would mount your phone to be launched along y, so you should either edit the elevator experiment accordingly (http://phyphox.org/editor) or just use a simple experiment (plus button on the main screen of phyphox) that records all acceleration and pressure data.

And please make sure that your phone is safe (or expendable)!