1. Aluminum/Titanium Comparison Aluminum alloy Titanium Alloy Property7075-T6 (ww-T-700) drawn tubing7075-T6; 7075-T651Grade 5 Ti6Al4V% Different SourceCasing.xlsMatweb Yield Strength (Mpa)4555031103219.28% Ultimate Strength (Mpa)5315721172204.90% E (Gpa)71.76 113.85158.65% 0.33 Density (g/cc) 2.814.43157.65% Melting Temp ( o C) 4771600335.43% Thermal Conductivity (W/m-K) 1306.75.15% Specific Heat (J/g-K) 0.960.526354.82%

2. Mass Calculation Short Grain HTPB Mass(kg)N2O Vol (m^3) Structure Mass Allowable (10:2) Multiplier6868 1.50.011440.015262.12.7 1.550.011820.015762.172.79 1.60.012200.016272.242.88 1.650.012590.016782.312.97 1.70.012970.017292.383.06 1.750.013350.017802.453.15 Long Grain HTPB Mass(kg)N2O Vol (m^3) Structure Mass Allowable (10:2) Multiplier3636 2.50.009530.0190723.5 2.550.009730.019452.043.57 2.60.009920.019832.083.64 2.650.010110.020212.123.71 2.70.010300.020592.163.78 2.750.010490.020982.23.85

3. Mass Calculation Chalice Design, 7075-T6 Al 240mm OD, 1.75mm Thickness, FS 1.25 Short Grain Low Height (cm)Low Mass (g)% All. MassHigh Height (cm)High Mass (g)% All. Mass 26.0597346.32%33.72125946.65% 26.91100546.32%34.85130146.65% 27.78103846.32%35.97134346.65% 28.65107046.32%37.09138546.65% 29.52110246.32%38.22142746.65% 30.39113546.32%39.34146946.65% Long Grain Low Height (cm)Low Mass (g)% All. MassHigh Height (cm)High Mass (g)% All. Mass 21.7081140.53%42.15157444.98% 22.1482740.53%43.00160644.98% 22.5784340.53%43.84163744.98% 23.0185940.53%44.68166944.98% 23.4487540.53%45.52170044.98% 23.8889240.53%46.37173244.98%

4. Mass Calculation Embedded Outer Shell Design, 7075-T6 Al 180mm OD, 61mm ID, 1.3mm Thickness, FS 1.25 Short Grain Low Height (cm)Low Mass (g)% All. MassHigh Height (cm)High Mass (g)% All. Mass 51.67107551.19%65.18135650.23% 53.21110751.02%67.17139850.10% 54.76113950.86%69.17143949.97% 56.30117150.71%71.17148149.86% 57.84120350.57%73.17152249.75% 59.39123650.43%75.17156449.65% Long Grain Low Height (cm)Low Mass (g)% All. MassHigh Height (cm)High Mass (g)% All. Mass 43.7591045.51%82.17171048.85% 44.6292845.51%83.67174148.77% 45.5094745.51%85.17177248.68% 46.3796545.51%86.67180348.61% 47.2598345.51%88.17183448.53% 48.12100145.51%89.67186648.46%

5. Mass Calculation Embedded Inner Shell Design, Grade 5 Titanium 61mm OD, 0.5mm Thickness Short Grain Low Height (cm)Low Mass (g)% All. MassHigh Height (cm)High Mass (g)% All. Mass 45.501929.12%45.501927.09% 45.501928.83%45.501926.87% 45.501928.55%45.501926.65% 45.501928.29%45.501926.45% 45.501928.05%45.501926.26% 45.501927.82%45.501926.08% Long Grain Low Height (cm)Low Mass (g)% All. MassHigh Height (cm)High Mass (g)% All. Mass 63.0026513.26%63.002657.58% 63.0026513.00%63.002657.43% 63.0026512.75%63.002657.29% 63.0026512.51%63.002657.15% 63.0026512.28%63.002657.02% 63.0026512.06%63.002656.89%