I'm asking about that prominent lever in the middle of the bottom end of the instrument panel:
http://www.aogheliservices.com/image...s/image007.jpg
All FIs and AFMs call it mixture lever: "out" is fuel cutoff, "in" is rich (flight pos)
Why has it got that notched knob?
Can one adjust the mixture by turning it?
Why is the master fuel cutoff (bottom end left side) a simple locking push pull lever, and said mixture lever has such an inviting knob to frob with?
I didn't dare turn it, I was afraid some internal threading might pop out, and of course the AFM sez nothing about turning it so I didn't, but I genuinely want to know.
(that mixture lever must cost more than the master fuel cutoff on the left,
why did Hughes/Schweizer go with that extra expense?
)