Can we change the distance where we can safely stand and pressurize our rocket depending on the maximum pressure of our rocket?
For example, I tried to break the Class A record @150 psi, and I am standing ~10m away from the pad. Could it still be acceptable?
As you can see, you First World countries have a greater advantage from Third World ones. Pricing of the materials plays a big part in this.
I mean, I'm just a middle school kid tinkering around water rocket staging and is aiming high.
So to reduce costs I shall propose pressure-dependent safe distances.
Below 100psi: 5m
100-150: 10m
150-300: 20m
300-max: 40m
I guess that would be enough to avoid shrapnel.
By the way, I only aim to launch at 125psi.

