P07105: Project METEOR - Steel Rocket January 19, 2007 21 Design of Experiments NOX Pressure (Pre-Inj.) Length of Fuel Grain Post-Combustion Chamber Nozzle Injector Plate Fuel Grain Additive Fuel Grain Geometery 3 levels (∆ of 50 psi.) 2 levels (11 – 18 ) 4 levels (1.5 - 3.0 ; ∆ 0.5 ) 2 levels 2 levels (4 holes/ 9 holes) 2 levels (Alum.
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