AI-20, G.A.Ivchenko
Modification of Kuznetsov NK-4 with improved specific fuel consumption.
| AI-20-5 | 1977 | turboprop | 3812kW |
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| AI-20D | 1955? | turboprop | 4190hp |
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| AI-20K | 1957? | turboprop | 4000hp |
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| AI-20M | 1965? | turboprop | 3169kW/4250hp |
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| AI-20V | 1961? | turbine | 5700hp |
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