dcastor

I'm New Here
I've seen on at least one RV, a NACA duct where the ramp of the duct pivoted outward on a screw to close the duct. In the end it was flush with the surrounding panel. Google searches have not turned up any results. Can anyone point me in the direction?

Thanks,
Dave C
 
RV4 Naca duct

The RV4 that I purchased has ducts like you describe on the right side of the canopy. The plastic screw is broken on one and I would like to know if a replacement is available.