Full-Scale Tests of a New Type NACA Nose-Slot Cowling (1937)
NASA Technical Reports Server (NTRS) · leaf 11
the baffles on the barrel were redesigned to ing comparison was obtained. fit the new instaUation. Three thermocouples on At the same density altitude and with the same power front cylinders were moved from the rear to tlie front but with a free-air temperature lower by 13° C, the spark-])Iug… … Figure 12.—Close-ups of the nose-slot cowling installed on a Ciirtiss BFC-1 airplane. changed for these tests and that therefore it was cooler; the cyhnder bases consistently averaged 30° C. entirely enclosed within the new cowling. cooler; the heads, 35° C. hotter, there being little The operation…
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