Tag Archives: nozzle

Titan II Installation

The Titan IV at Evergreen isn’t the only Titan there.  They also have a Titan II ICBM.  This is installed upright in a recreation of the launch facility that would originally have been buried deep under a remote part of the US countryside.  You can walk down and check out the control facilities (probably a touch closer to the silo than would originally have been the case) as well as get down to the base of the silo where the twin nozzles of the missile are.  Looking up at the missile from down there is quite an impressive sight.

The Titans were liquid fueled rockets.  The process of getting them ready for launch was a lot more complex than for the solid fueled rockets like the Minuteman that replaced them so they were a lot less responsive.  However, they fulfilled their role for a long time.  They also had a secondary career as manned launchers.  The Titan II was the launch vehicle for the Gemini missions so it is a lot more familiar to most people than would be the case for the average ICBM!

Nozzle Details on Titan IV

The missile display at Evergreen Aerospace Museum is impressive.  They have sourced a lot of different types and they have a Titan IV section lying on its side.  You can get up close to the nozzle of the rocket motor and it is a cool thing to see in detail.  Looking from a distance, they look very simple but, once you are close up, the complexity of the structure and the cooling structure to stop the plume from burning right through the nozzle are really impressive.  The shaping of the nozzle itself, in contrast, is very simple.  The expansion ratios are calculated carefully and the profile is a smooth transition to minimize the losses.  Quite the contrast.