A sterilization case assembly including a plurality of sterilization cases having a first sterilization case and a second sterilization case. The value of a previously-used exhibit may be calculated by receiving an original price of the exhibit, the year the exhibit was purchased, the condition of the exhibit and the number of shows the exhibit was displayed. Estimated rocket dynamic parameters are computed for each target type being considered, and compared with a reference set of rocket parameters representing different target types. The flange is formed of a resilient material and a thickness so as to permit the flange to be deformed as the adapter is inserted into the fuel cell cavity.