Method for Rapid Graphical Evaluation of Cooled or Uncooled Turbojet and Turboprop Engine or Component Performance (effects of Variable Specific Heat Included) (1955)
NASA Technical Reports Server (NTRS) · leaf 38
KA.CA TN 3335 37 … Figure 2. - Compressor-Inlet equivalent temperature due to ram
NASA Technical Reports Server (NTRS)
Internet Archive · NASA Technical Reports · Public domain (US government work). Free to use for anything.