A friend just bought a new-to-him RV-7, and has flown the a/c just a few hours. When I looked in the cockpit, I noticed that the Andair fuel selector valve was positioned 1/2 way between the left and right positions. I asked why, and he stated so he could pull fuel from both tanks.
The valve in question has the L-R positions located 90* apart, there is no BOTH position. (My -6A has the L/R 180* apart). Also, he did not know that you could pull up on the "knob" to select the OFF function.
So my question is: do you get the same fuel flow to the engine if the selector is half way between L and R as you would get with the selector in a "proper" L or R position? I know it is not desire able to have a BOTH on our RVs, but I am just curious about the fuel flow through the valve.
The valve in question has the L-R positions located 90* apart, there is no BOTH position. (My -6A has the L/R 180* apart). Also, he did not know that you could pull up on the "knob" to select the OFF function.
So my question is: do you get the same fuel flow to the engine if the selector is half way between L and R as you would get with the selector in a "proper" L or R position? I know it is not desire able to have a BOTH on our RVs, but I am just curious about the fuel flow through the valve.