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Design information


The design pages are filled with information I used for designing my water rockets.
I do not state that the given information is scientificly correct. But it is what i hold for true at the moment in my quest for the world record.
I share this information, so that you can use it for your own designs, but especially to get some feedback on flaws in the calculations and assumptions underlying this information.


Some design info I used to build my water rockets.

Basic conditions to get a stable rocket in flight.
A short explanation on CP and CG
The fins
What fin size to use and some calculations on fin stiffness to prevent flutter
Parabolic flight
Calculations on forward velocity at different launch angles and speed


Design considerations in practical test
Max pressure on a bottle, calculations
What is the max pressure a bottle will hold?
Pressure testing body joint principle
Test, what is max pressure / failure mode of joint principle


Abandoned design ideas
Ideas for a 20L rocket
Abandoned project of a 20 liter water rocket, kept for reference
Abandoned project construction info of 20L
Abandoned project of a 20 liter water rocket, kept for reference