Value chain · CLM-0871
In plain terms
A table in the 1978 report has two arithmetic slips, and the report's own column total is enough to show which figure is wrong in each case.
The claim as recorded
SRC-085's Figure 17 contains two arithmetic defects in different cells, and the column total the figure itself prints settles both. Step 3 prints 15,458 klystrons where 644 subarrays at 24 klystrons each give 15,456, and substituting 15,456 makes the column sum to the printed total of 101,552 exactly. Step 5 prints 18 klystrons per subarray where 784 at 18 would give 14,112, but the same row's klystron count reads 12,544, which is 784 at 16; substituting 14,112 gives 103,120 against the printed total, so the multiplier cell is the defect rather than the product. The subarray column sums to its printed total of 7,220 with no discrepancy.
Evidence behind this: Arithmetic on the source's own printed table, checked against the total the same table prints. CALC-089.
Scope and limits
These are typographic defects in a 1978 document, not a finding about space-based solar power. They are registered because 20 claims in this base cite SRC-085 and a reader recomputing anything from Figure 17 will hit them. Nothing downstream depends on the corrections: no claim in this register uses the step-3 or step-5 klystron counts.
What it assumes
That the printed column totals are themselves correct. They are the arbiter here, so if a total is wrong the arbitration fails - the subarray column summing to its own printed total with no discrepancy is the only corroboration offered for that.
Where it comes from
This is the project's own working, shown in full:
CALC-089 prints all ten rows, both products and the two substitution tests. Read from a RENDERED image of PDF p.44: the scan's text layer returns this figure as garbled fragments and does not carry the Klystrons/Subarray column at all, so the table cannot be obtained by extraction. The step boundary radii on the same diagram - 93.9 to 500.6 m - are recorded in CALC-089 and exist nowhere else in this register.
Basis: counts of subarrays and klystrons; no currency
Related records
- Answers question
- QST-001 not published in this release
Cite this
energyaperture.com/c/clm-0871
CLM-0871, Energy Aperture, as of 1978.
Connected records
Other published records linked to this one. A list, not a judgement.
- Also from SRC-085
- CLM-0013The paper that modern UK studies rely on for the beam figure calls anything below 1 kilowatt per square metre safe, with 230 watts per...CLM-0020The original 1978 design set the beam at 230 watts per square metre in the middle of the receiving site, about one twenty-third of that at...CLM-0023In the 1978 reference design, two limits set the size of the transmitter and the receiving site: how much heat the transmitter can shed...CLM-0039The 1978 report set the figure to protect radio and navigation systems from a disturbed ionosphere, called the number theoretical and...CLM-0045The apparent conflict between 12 and 23 was not an error. The underlying study gave a range, and the figure adopted sits near the top of it.CLM-0101The 1978 contract required the researchers to report fixes if ionospheric disturbance pushed the pilot-beam phase error past 2 to 3...CLM-0137In four major space solar power studies from 1978 to 2007, none put a number on how much of the beam's energy would be lost if the beam...CLM-0138The original 1978 government design for beaming power down from space adds up all the expected energy losses to get 63% overall efficiency...More on the source page.