Water Bottle Rocket Second Launch

Hey so the title today is kind of false in a way.  This is because we actually launched like 4 times and this would be our second or third launch.  Also this is the launch with our modifications done.  I believe that our first launch was RECORDED to be our longest launch, which lasted around 5 or 6 seconds in the air.  (The first launch was without any modifications)  But for today, we didn't have all of our materials, so we had to just lengthen (make it longer) our bottle today.  To do this, we just cut the bottom of one of our bottles and attached it to the other one.  We were going to add wings, but we didn't have materials to do it.  Tomorrow we will add the wings and the parachute.  So hopefully we can add another 5 or 6 seconds to our time.