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| | Central automatic data processing system (Site not responding. Last check: 2007-10-22) |
 | | This series of papers describes a system that will automatically record as many as 300 pressures, 200 voltages, and 24 frequencies in as little as 30 seconds to an accuracy of 0.15 percent or better of full-scale range. |
 | | The system is in daily operation on a 24-hour basis and has an operating history of more than 2 years. |
 | | The computer accepts the encoded data produced by the recording system and automatically calibrates it, takes averages, forms ratios, and does terminal calculations such as mass flow, momentum, distortion numbers, drag coefficients, thrust, specific fuel consumption, and efficiency. |
| naca.larc.nasa.gov /reports/1958/naca-tn-4212 (180 words) |
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