Post #217 and #218 was the cheapest way to create somewhat realistic vents.
However, it is far more realistic to create these vents WITH the peculiar opening on the model.
I started with this here on the Kissenberth Albatros D.V.

However, that is a bit more expensive and time-consuming, the vents on the model have to be removed (file, milling cutter, sandpaper, whatever), the openings on the model have to be opened with a drill and file and the material from the fuselage has to be milled a bit thinner from the back if possible.

The removed vents now have to be recreated using new parts.
In my opinion, a really good place for this is the 3D printed parts from Bo Monroe, or "Flugzeugwerke".

He is represented here in the forum.
Visit his website... great stuff there.
(I have no share in his company, the parts or the profits!)
I just want to show the other way, the slightly more expensive one.
However, these little parts help to make the model even more realistic.
...... and you save yourself the trouble of painting the back of the vents.
Here on the model, the vents are just resting on top, nothing is fixed yet, etc.



Servus
Bertl