abc + i + aiv + biii + ci + diii + ei + fi + giii + hi + Iii + 32 + A-131 + B-112 + C-52. Heavily illustrated charts, graphs, many fold-out graphs. Extremely scarce. Includes Basic principles of SSR PWI-CAS, basic ATCRBS design, concept of proximity warning; basic geometrics of air-to-air proximity warning using SSR transponder signals; hardwear feasibility effort, description of video processor, analysis of typical air-to-air encounter using SSR PWI-CAS equipment, rejection of fruit and garbling in dense air and ground environments, lab and flight measurements of SSR PWI-CAS signals from "other" aircraft, description of data measurement equipment; preliminary flight test results, measurement environment, etc. Paper wraps a big grubby, some bending and chipping at edges, grease pencil 1974 on fc and spine, interior some dog-earing, storage rippling to some pages, but overall sturdy, clean and good. ; 4to - over 9¾" - 12" tall