Re:H2O2 + Silver Screen (Score 1)

Hey ROCKET SCIENTEST ( ahem ) it is irrellevent if the silver screen melts when the motor is to be used for a short duration ( a few seconds )! Anyway there are many ceramic based catalyst packs that can be used for hours, as his motors are been built by a company with many years of experience in Peroxide motors I am sure they know this. If you knew about rocket motors as you claim too, then you would know what ISP or specific impulse is right?? Anyway if you dont it is the measure of force that each lb of propellant can produce. 90% Peroxide can achieve around 170 lbs-sec in comparison to a bi-propellant systems 210-220 lbs-sec at low pressures. ( around 200-300psi as this is required to keep the propellant tank pressure low, which always needs to be around 50psi higher than the combustion pressure. Higher than this requires heavy high pressure tanks or complexed turbo pump systems to get the propellant to the motor chamber ) However the additonal complexity of adding another liquid and the equiptment to store & deliver it to the motor, far out weight the advantages of the mono-propellant option for this project. It is a much better trade off to simply add more Peroxide to get the same result. Also anybody who has ever built a liquid bi-propellant motor will tell you the complexeties of getting propellants to mix and combust in a stable way far outway the merit a simple catalyst based reaction very attractive. You may know some rocket theory man but often the highest performance is not the best option, a real rocket engineer knows there are various trade offs to made when considering which system is best. The peroxide system ahs proven itself over many years on man rated systems, you argument that it wont make thrust is crap as thrust=ISP x propellant mass flow rate. Its that simple as long as the fuel is delivered correctly the desired thrust will be acheieved. Hey rocket scientist have you ever actually made a rocket????