Gig 601XL Builder wrote in
:

Mxsmanic wrote:

I've seen pictures of selectors with a "both" position, although
apparently they don't come that way from the factory. Odd that such
a position isn't standard. Dreamfleet puts such a selector in its
Bonanza (one of the very few departures from reality) because MSFS
supposedly exaggerates fuel imbalances. I always leave it in that
position.


Please point me to such a picture. I've never seen one.

I want you to do an easy experiment that will show you the problem
with a non gravity feed system that uses a "both" position.

Take a glass of water and two drinking straws. Put one of the straws
in the water and hold the other out side of the glass. Now put both
straws in your mouth and suck. Unless you are doing something to block
the straw that isn't in the water you will find it very hard to get a
drink. The same thing happens with a non gravity feed fuel system in
the "both"
mode.




Xactly. I know of an RV6 where they installed a selector with a both"
position "in the interest of safety" How it got past the DAR I have no
idea, but it crashed on it's second flight........


Bertie