Choosing not to fly today; instead thought toward identifying drumming areas of
the fuselage; details attached along with required acoustic patch sizes. Some
areas of hatches and footwell floor are only accessible for treating during
building;
footwell floor void could probably be filled with expander foam though.
Total added mass can be estimated from sizings. Sizings can be reduced 20%
and still remain affective.
Mid to forward L/R of centre upper cowl - 4"x10"
Mid to forward L/R of centre lower cowl - 3"x12"
Naca vent slider door rattle
Behind naca vent area to L/E of wing - 6"x10"
Fuselage, forward foot well floor step area - 4"x4"
Forward hatch fuselage area - 2"x8"
Mid centre line to rear hatch hinge - 2"x14"
Vert stab rib to fuselage fillet - 4"x30"
Vert stab trim bar port area - 4"x8" upper 2"x8" lower
Fuselage upper lower seam, fuel filler to L/E of h'stab - 3"x50"
Fuselage upper 1/8 quadrant, fuel filler to L/E of h'stab - 4"x45"
Fuselage belly, flap hinge covers to static port - 6"x40"
Hatches, lower frame 1"x 12" and rear corner sections 6"x8"x8" triangle
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