Tuesday, June 1, 2010

Engines!

I apologize for the long delay, but I have been a bit busy.  So, here are some pictures of the engines being assembled.  I have all four done, but they aren't mounted on the wings yet.  They will have to wait until the wings are on the fuselage, which has to wait until I have finally decided what should go on the cargo floor.  Maybe I should just glue the tank down and close it up without any other cargo that no one will see anyway.

First up in the assembly process is the core section.  Here is one unassembled.  Towards the top is the aft section of the turbines, the lower right is the aft section of the fan blades.  The light silver part of the two halves roughly represents the core thrust reverser seam.


And here is a picture of all of the engine components.  The large pieces are the main engine cowling, the longer sections are the pylons that connect to the wing.  Reminds me of just how far forward they stick out from the leading edge.  Lower left is the "lip" of the intake, all polished and ready to vaporize some ice.  To the right is the front of the fan blades, then the core section as described above.


I can almost use this as an aide to teach jet engine theory.  It is the left half of an engine, pre-assembly.  You can see how the core fits into the main cowling, with the turbine section resting towards the back.  In front of that are the two halves of the fan section.  Finally, the intake rests at the far right.


On the top is a completed core section, roughly aligned with its counterpart below.  The darker paint represents not only the darkening from the engine exhaust, but also the titanium used to withstand the heat (up to 655 C).  The slot at the front of the engine is for the strake which I hadn't attached yet when I took this picture.  The only missing components from the engines are the EPR (and ice) probes inside the intake and the  various drain masts at the bottom of the engine.


We're pretty well recovered from our leave, so hopefully I'll have the time to get some more assembly done before I leave for a quick TDY right before my parents roll into town.