The Boeing X-20 Dyna-Soar ("Dynamic Soarer" or "Dynamic Soaring") was a United States Air Force (USAF) program to develop a spaceplane that could be used for a variety of military missions, including aerial reconnaissance, bombing, space rescue, satellite maintenance, and as a space interceptor to sabotage enemy satellites. Planning also included performing research into the characteristics of hypersonic flight at speed ranges above those achievable with the x-15. The program ran from October 1957 to December 1963, and was cancelled just after spacecraft construction had begun.
This Dyna-soar model is of the final 844-2050-E version, based on late 1962 blueprints. It includes the fairing that would cover the joint to the top of a Titan launch rocket. (The back end of the fairing is a scaled 10 feet (3.048m) in diameter, to match the 10 foot outer diameter of the Titan's main body sections) For orbital launches this final version of the Dyna-Soar would have been launched atop a standard Titan IIIc launch vehicle, mounted on top of the Titan's "trans" stage". The Titan's "Trans" stage would then be retained for orbital manoeuvring and de-orbiting, before being dropped so the Dyna-Soar glider could re-enter the atmosphere. Sub-orbital launches were planned to be launched on a modified Titan II (modified with big fins at the bottom of the rocket in order to compensate for the aerodynamic effect of the Dyna-Soar's wings at the top of the rocket), mounted above the second stage, but by the time of this final version of the Dyna-Soar the sub-orbital test program had already been abandoned as a cost saving measure.
The model is optimised for printing in Shapeways' "Smooth Fine Detail Plastic" in that its panel line details are sized at just over the minimum width and depth for engraved detail printed in that material, to give the finest panel line details possible at this scale.The images of the model shown here are smooth fine detail plastic 'as printed' (that is, without any attempt to finish the surface by sanding, etc.), with one coat of black primer.