A Case Study in NASA-DoD - The Black Vault

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Table 7
ESTIMATED UNIT 1 COST
(In millions of
1976 dollars)
AEM.........................2.3
L-AEM
Spin.......................9
Baseline..................4.8
Precision..................7
STPSS
Spin......................4.6
Low-cost...................7
*Precision..................6.9
MMS
Basic......................8.9
SPS-I.....................4
standard error of estimate (the dashed lines) of the regression line.
The AEM has a higher relative cost than the other spacecraft because ofI
a lower percentage by weight of structure. All other spacecraft have
costs lower than would be predicted by the SAMSO model, and that seems
appropriate because the model was derived from data on conventional
spacecraft.
10 SAMSO MODEL , / MiS + SPs-i
,~ / MMS
L-AEM jo, *9 STPSS PRECISION
BASELIN1E
o
SPCCAT 6 - ,O. TPSS LOW-COST
UNI ICSI * LAEM PRECISION
(S Millions) P J# .
STPSS SPIN
J# 6oL AEMSPIN
00AEMf
2 *1
0 50D I000 15010 20D0
WEIGHT OIbi
Fig. 6-Spacecraft unit cost versus weight