The NG Models 757 has been a revelation in 1:400 so it is high time I investigated more of their model's histories. Part 1 of a 2 part series looks at the beginnings of the 757 and the journey from the 727-300 to the 7N7 and finally to the 757:

https://www.yesterdaysairlines.com/a...-to-7n7-to-757

Boeing 757-200 Prototypes by rstretton, on Flickr