T_inf= 21 C Fin #1: Aluminum L= 10.25 in w= 1.3 in b= 0.125 in Power= 18.25 Volts at 50 Ohms T(x=0): 57.3 C T(x=2): 45.2 C T(x=4): 39.2 C T(x=6): 34.0 C T(x=8): 31.0 C Fin #2: Copper L= 10.25 in w= 1.3 in b= 1/16 in Power= 18.25 Volts at 75 Ohms T(x=0): 47.7 C T(x=2): 36.0 C T(x=4): 33.6 C T(x=6): 31.1 C T(x-8): 30.6 C Fin #3: Steel L= 10.25 in w= 1.0 in b= 1/16 in Power= 18.25 Volts at 50 Ohms T(x=0): 84.1 C T(x=2): 43.0 C T(x=4): 30.1 C T(x=6): 23.8 C T(x-8): 22.9 C Fin #4: Aluminum L= 10.25 in w= 1.0 in b= 1/16 in Power= 18.25 Volts at 50 Ohms T(x=0): 69.1 C T(x=2): 49.5 C T(x=4): 38.9 C T(x=6): 31.4 C T(x-8): 27.8 C