ORIGINAL: Ben Lanterman
I promised I would make a drawing to show the normal forces on the airplane with roll. Notice that just the gravity vector goes away. The tail determines the AOA of the wing so keeps working on roll. Luckily most airplanes pitch to the belly so the normal force acceleration toward the canopy is never noticed. If you have no rudder deflection or a really pure airplane with rudder deflection the airplane will go toward the canopy at 1g acceleration. To stop it you must dump the elevator trim to 0 degrees
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"pitch to the belly".. what causes this "normally"
In a steady knife-edge configuration, the wing is still lifting, right? Unless the alpha is changed (using the elevator/mix) to eliminate that.
KE on my Kadet generally requires much down elevator to get the flight path straight due to pitching to the canopy (semi-symmetrical wing). Mac's hand-eye coordination is much better than mine, and can do a KE all day long with his Kadet.
Pushing the nose down in a longitudinal roll is common with a semi-symmetrical wing.
And the only way to get a roll out of a normally dihedralled RE airplane, which goes "towards the canopy" when rolled.