Our first Rocket Test Flight

Yesterday we had our first flight test with our ambassador Lincoln. To launch a rocket you need bike pump, 1.5L bottle, H2O, safety glasses, launcher, pressure gage, measuring jug. First you need to make changes to the bottle to make it so it fly's higher.  Next you need set up then you need to fill the bottle up as much as you need.  Then connect it to the launcher. then stand about 3 steps back and 10 9,8,7,6,5,4,3,2,1, fire it may take about 20 secs or so but other whys it will maybe lunch straight away. Now what happens with ours Launch 1, 10psi and 250ml of water Launch 2 30psi 200ml of water Launch 3 45psi 250ml of water last but not least Launch 4 45psi 350ml. Now you may be thinking what one went the highest it was the last one. The first one had a 10 second delay.