Sec. 23.779 - Motion and effect of cockpit
controls.
Cockpit controls must be designed so
that they operate in accordance with the following movement and actuation:
(a) Aerodynamic controls:
Motion and effect
(1) Primary controls:
Aileron........................... Right (clockwise) for right wing
down.
Elevator.......................... Rearward for nose up.
Rudder............................ Right pedal forward for nose
right.
(2) Secondary controls:
Flaps (or auxiliary lift devices). Forward or up for flaps up or
auxiliary device stowed;
rearward or down for flaps down
or auxiliary device deployed.
Trim tabs (or equivalent)......... Switch motion or mechanical
rotation of control to produce
similar rotation of the
airplane about an axis parallel
to the axis control. Axis of
roll trim control may be
displaced to accommodate
comfortable actuation by the
pilot. For single-engine
airplanes, direction of pilot's
hand movement must be in the
same sense as airplane response
for rudder trim if only a
portion of a rotational element
is accessible.
(b) Powerplant and auxiliary controls:
Motion and effect
(1) Powerplant controls:
Power (thrust) lever.............. Forward to increase forward
thrust and rearward to increase
rearward thrust.
Propellers........................ Forward to increase rpm.
Mixture........................... Forward or upward for rich.
Fuel.............................. Forward for open.
Carburetor, air heat or alternate Forward or upward for cold.
air.
Supercharger...................... Forward or upward for low
blower.
Turbosuperchargers................ Forward, upward, or clockwise to
increase pressure.
Rotary controls................... Clockwise from off to full on.
(2) Auxiliary controls:
Fuel tank selector................ Right for right tanks, left for
left tanks.
Landing gear...................... Down to extend.
Speed brakes...................... Aft to extend.
[Amdt. 23-33, 51 FR 26656, July 24, 1986, as
amended by Amdt. 23-51, 61 FR 5136, Feb. 9, 1996]