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Transcript

Flight Controls

  • Cessna 172’s flight control system consists of conventional aileron, rudder, and elevator control surfaces.
  • The control surfaces are manually operated through mechanical linkage using a control wheel for the ailerons and elevator, and rudder/brake pedals for the rudder.
  • Last is a manually operated elevator trim system which is adjusted by the elevator trim tab using the vertically mounted trim control wheel.

Empennage

Cessna 172

  • The empennage consists of a conventional vertical stabilizer, rudder, horizontal stabilizer, and elevator.
  • The vertical stabilizer consists of a spar, formed sheet metal ribs and reinforcements, a wraparound skin panel, and formed leading edge skin.
  • The rudder is constructed of a formed leading edge skin containing hinge halves.

Airframe

  • The Cessna 172 is an all metal, high wing, single engine airplane equipped with tricycle landing gear, and is designed for general utility purposes.
  • The overall construction of the fuselage is a conventional formed sheet metal bulkhead, stringer, and skin design which is referred to as SEMI MONOCOQUE.
  • The externally braced wings, containing the fuel tanks are constructed of a front and rear spar with formed sheet metal ribs, and the entire aircraft is covered with a aluminum skin.

Empennage continued...

Ailerons & Flaps

  • The horizontal stabilizer is constructed of a forward and aft spar, ribs, and formed leading edge skins.
  • The horizontal stabilizer also contains the elevator trim tab actuator.
  • The elevator located behind the horizontal stabilizer has a formed leading edge skin and a trailing edge cut out for the trim tab.
  • Conventional hinged ailerons and single slot type flaps are attached to the trailing edge of the wings.
  • The ailerons are constructed of a forward spar containing a balance weight, formed sheet metal ribs and “V” type aluminum skin joined together at the trailing edge.
  • The flaps are constructed the same as the ailerons with the exception of the balanced weights and the addition of a formed sheet metal leading edge section.

Airframe

&

Flight Controls

References

  • Pilot’s Operating Handbook, Skyhawk Cessna Model 172N. Cessna Aircraft Company 1977
  • http://www.pilotfriend.com/training/flight_training/fxd_wing/primary.htm
  • Cessna 172 Training Manual. Oleg Roud and Danielle Brucket, 2006
  • http://www.cessna.com/single-engine/skyhawk.html
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