Responsive Access Small Cargo Affordable Launch (RASCAL ...
Responsive Access Small Cargo Affordable Launch (RASCAL ...
Responsive Access Small Cargo Affordable Launch (RASCAL ...
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The design alternatives were costed in much the same way as the baseline the<br />
alternative designs were costed using a combination of the NAFCOM tool as well as<br />
Transcost CERs. The cost analysis results for cost per flight follows as Figure 30.<br />
Cost per Flight (Millions)<br />
10<br />
9<br />
8<br />
7<br />
6<br />
5<br />
4<br />
3<br />
2<br />
1<br />
0<br />
0 50 100 150 200 250 300<br />
Number of Flights per Year<br />
Figure 30: Cost per Flight Comparisons of Optimized Alternatives.<br />
Alt 8 Case 1<br />
Alt 9 Case 1<br />
Baseline Case 1<br />
Alt 8 Case 2<br />
Alt 9 Case 2<br />
Baseline Case 2<br />
Alt 8 Case3<br />
Alt 9 Case 3<br />
Baseline Case 3<br />
As this figure shows the baseline has the cheapest cost per flight of every design.<br />
This is misleading because cost per flight does not take into account the fact that the<br />
baseline only carries 52 lbs to orbit. If only the alternatives which reach the performance<br />
requirement are evaluated alternative 5 results in the lowest cost per flight for Case 1 and<br />
2, with alternative 4 being the cheapest for Case 3. The reason alternative 4 is cheaper in<br />
Case 3 is due to the higher DDT&E costs of alternative 5 over alternative 4 ($3.675 B vs.<br />
$3.48 B respectively). This higher DDT&E is due to the increased cost of having a<br />
MMC first stage, which is not a fully mature technology. The increased cost of the<br />
MMC is taken into account through the use of complexity factors on the CERs. The<br />
complexity factors take into account the fact that some designs may cost more per pound<br />
than conventional designs due to the complexity of the materials or processes used in the<br />
manufacture of the design.<br />
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