Please excuse my ignorance...

I have seen cowls on planes before, but never really looked at them in great detail.

Here is what I have in my mind as a cowl.

I cowl is a "hollowed" out piece of balsa (or plastic etc. hull) that goes around the engine. There is a hole in the front in which the shaft for the prop protrudes. There is another hole on the side or bottom for the exhust and engine to protrude.

I am not following the inlet and outlet thing.

Do you care to explain? It help me a lot. [8D]

Wings