Minicraft''s 707 is the first widely available kit of the “Intercontinental” variant of the 707 with JT3D engines in the box. Previously, modellers wishing to do a -320 had to convert the Airfix -420 by replacing the Conway engines and altering the wing trailing edge. There are a few inaccuracies but nothing major. A decent model can be built right out of the box, and a little work will turn it into a show stopper.
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