Your data has separate blocks for the airfoil and other components, so showing just the airfoil is pretty easy. There are a couple of options.
Tell ParaView to not draw the body
Select the reader in the Pipeline Browser and open the MultiBlock Inspector (under the View menu). Uncheck all the blocks you do not want to see (everything except airfoil in your case).
Create a new dataset containing only the blocks you want to see
Select the reader in the Pipeline Browser and then add the Extract Block filter 
. Uncheck all the blocks you do not want to see (everything except airfoil in your case) and click Apply.
This will create a new data set containing only the blocks you want to see. Even though yopu have added a new dataset, it does not take any more memory. The memory is shared with the source, so you don’t have to hold the blocks multiple times.