252 

14 CFR Ch. I (1–1–14 Edition) 

§ 23.781 

Motion and effect 

Fuel ...........

Forward for open. 

Carburetor, 

air heat 
or alter-
nate air.

Forward or upward for 

cold. 

Super-

charger.

Forward or upward for low 

blower. 

Turbosuper- 

chargers.

Forward, upward, or 

clockwise to increase 
pressure. 

Rotary con-

trols.

Clockwise from off to full 

on. 

(2) 

Auxiliary 

controls: 

Fuel tank 

selector.

Right for right tanks, left 

for left tanks. 

Motion and effect 

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] 

§ 23.781

Cockpit control knob shape. 

(a) Flap and landing gear control 

knobs must conform to the general 
shapes (but not necessarily the exact 
sizes or specific proportions) in the fol-
lowing figure: 

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