Question: 3.11 At launch, the space shuttle main engine (SSME) has 1030 lbm/sa gas leaving the combustion chamber at P = 3000 psia Tt =

3.11 At launch, the space shuttle main engine (SSME) has 1030 lbm/sa gas leaving the combustion chamber at P = 3000 psia Tt = 7350R. The exit area of the SSME's nozzle is 77 times the throat area. If the flow through the nozzle is considered to be reversible and adiabatic (isentropic) with Rgc = 3800 ft2/s.R and y = 1.25, find the area of the nozzle throat (in2) and the exit Mad number. Hint: Use the MFP to get the throat area.

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