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Comparative Performance of Engines Using a Carburetor, Manifold Injection, and Cylinder Injection (1939)
NASA Technical Reports Server (NTRS) · leaf 17
Fig N.A.C.A. Technical Note No. 688 … Figure 4." Fue I- injec + ion valves.NASA Technical Reports Server (NTRS)
Internet Archive · NASA Technical Reports · Public domain (US government work). Free to use for anything.
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