| DOI | Resolve DOI: https://doi.org/10.4224/40003643 |
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| Author | Search for: Rudnitski, D. M.1; Search for: Macmillan, W. L.1 |
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| Affiliation | - National Research Council Canada. Division of Mechanical Engineering
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| Format | Text, Technical Report |
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| Physical description | 66 p. |
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| Abstract | A number of flight trials of two J85-CAN-15 engines installed in a CF-5 aircraft were conducted by the Aeronautical Engineering Test Establishment (ΑΕΤΕ) at CFB Cold Lake, Alberta. Data analysis shows that the main fuel control on the LH engine senses an air temperature 10°C warmer than the compressor inlet under steady state flight conditions, and a temperature up to 17°C warmer than the compressor inlet under transient high attitude aircraft stalls. The RH engine is similarly affected, but the errors are only 4°C and 12°C for the same flight conditions. Exhaust gas temperature cutback occurs at the required rate, but follows the temperature sensed by the fuel control unit and not the compressor inlet. Compressor speed cutback does not follow the predicted rate nor does it occur at the required temperature of -26°C. The net result of insufficient cutback is to decrease the engine stall margin during flights where compressor inlet temperatures are below -26°C. |
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| Publication date | 1978-04 |
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| Publisher | National Research Council Canada |
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| Series | |
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| Note | The content is temporarily unavailable |
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| Language | English |
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| Peer reviewed | No |
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| Export citation | Export as RIS |
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| Report a correction | Report a correction (opens in a new tab) |
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| Record identifier | 98bf1289-768a-4721-9df8-3c4a987b9233 |
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| Record created | 2025-08-26 |
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| Record modified | 2025-11-26 |
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