Construction of the Acro Sport
FUSELAGE
The fuselage, landing gear, engine mount, I-struts,
and cabanes are constructed of 4130 Chrome-Moly steel tubing. Most of it
was welded with the oxyacetylene process. Some of
the heavier steel components were Heli-Arc welded.
TAIL GROUP
The tail group consists of two horizontal stabilizer halves, two elevator
halves and a rudder. It is also constructed of 4130 steel tubing around
the outer perimeter with ribs bent from 4130 sheet steel.
WINGS
The 5 wing panels, including center section, are constructed of wooden
ribs attached to Sitka spruce spars.There are 45 ribs, all built to
the same profile. Most are of the typical stick built type with plywood
gussets, but some are plywood covered such as compression ribs. All of
the panels have drag-anti drag wires and aluminum leading edge.
COVERING
The wing panels, tail group, landing gear, and aft 2/3 of the fuselage
are covered with dacron fabric. The Ceconite 7600
process was used with Butyrate dope finish. The forward 1/3 of the fuselage
and engine cowl is aluminum sheet. The wing tips, nose bowl, and wheel
pants are fiberglass.
Photo taken January 1988. Ready
for pre-cover engine run.
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