Searching for (fresh air) vents, I came across mention of Vetterman vents but no pictures of them.
On my RV-3B I have vents mounted on forward fuselage sides. They are about 1" diameter and opened/closed by turning a knob. Looks like a butterfly valve. When opened, half of the circular valve sticks out into the wind and the other half into the cockpit. When closed they are completely flush with the fuselage skin. Are those "Vetterman vents"?
Where can I buy then? Appears that Van's no longer sell them and nothing on the vetterman.com web site.
Finn
On my RV-3B I have vents mounted on forward fuselage sides. They are about 1" diameter and opened/closed by turning a knob. Looks like a butterfly valve. When opened, half of the circular valve sticks out into the wind and the other half into the cockpit. When closed they are completely flush with the fuselage skin. Are those "Vetterman vents"?
Where can I buy then? Appears that Van's no longer sell them and nothing on the vetterman.com web site.
Finn