Specifications

11934-S37 3 of 56
Cirrus Design Section 9
SR20 Supplements
Section 1 - General
The G3 Wing is constructed in a conventional spar, rib, and shear
section arrangement. The upper and lower skins are bonded to the
spar, ribs, and aft shear web forming a torsion box that carries all of
the wing bending and torsion loads. The rear shear webs are similar in
construction but do not carry through the fuselage. The main spar is
laminated epoxy/carbon fiber in a C-section, and is continuous from
wing tip to wing tip. The wing spar passes under the fuselage below
the two front seats and is attached to the fuselage in two locations. Lift
and landing loads are carried by the single carry-through spar, plus a
pair of rear shear webs (one on each wing) attached to the fuselage.
G3 Wingspan is increase by three feet and wing geometry is slightly
changed with an 1° increase in dihedral which allows for the
elimination of the aileron-rudder interconnect system. Because of the
wingspan and geometry changes, aircraft performance data has been
updated and included in Section 5 - Performance.
The main landing gear is moved slightly inboard and the strut angle
increased to achieve an increase in airplane height of 1.5 inches.
Other G3 Wing updates include:
• wing tip with integral, leading edge recognition lights.
• relocation of the fresh air inlets to the engine cowl and related
environmental system changes,
• improved trailing edge aerodynamics
• improved wing root fairings,
• relocation of the stall warning port,
Revision 01: 08-26-09