McDonnell Douglas spent much of the 1970’s trying to get NASA, the Marines and the Navy to fund the development of a lift-fan-based VTOL aircraft concept, the Model 260. This general concept showed up in a number of different forms, from strike bomber to carrier onboard delivery transport to Marine troop transport. Shown below is a”Research Technology Aircraft,” a proof of concept prototype to be assembled from existing aircraft components, much as Rockwell did with the XFV-12.
I’ve made the full resolution version of the diagram (equivalent to 37 inches wide at 300dpi) available to above-$10-subscribers of the APR Monthly Historical Documents Program/Patreon.
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