STI master wing design is based on a
modified Geottingen 387 airfoil that is inverted, and
has various belly depth configurations, lengths, and
widths to meet the individual racer (race car) needs
within the perimeters of the governing racing body or
sanction.
STI racing wings are precision designed and manufactured
with a combination of cad/cam/aerodynamics analysis
computer programs and CNC equipment. What does that
really mean to you? It simply means that each wing
concept is completely engineered*, modeled, and then
tested through two (2) special analysis programs for
airflow co-efficiencies of drag, downforce, and "static
friction". These two (2) systems also run virtual
reality structural failure and stress fatigue tests as
well.
From this point, after the "prototype" design has proven
itself in all perimeters of it's design, it's "ribs" are
then precision machined on STI's own AC-2V-3 Accu-II cnc
verticle milling machine center using a Centroid M400S cnc system. Each "rib" is "mirrored" (copied) within
0.0001" consistency, "rib" after "rib" until the amount
required for that individual wing is completed.
STI machines each "rib" from 1.50" thick 6061-T6 alloy
into a specially designed "6D" part that not only gives
the wing as an assembly super strength, but makes the
total mass weight equivalent to or less than that of a
stamped sheet-metal "ribbed" wing!
STI uses 0.025" 3003-H14 alloy FAA certified aircraft
"skin" on these wings, depending on size, this then is
sent to our assembly area for hand fitting and weld-up.
Here again, depending on the application, the two (2)
"cross-spars" are usually 1.0" o.d.x0.050" wall
thickness 6061-T6 alloy tubes that run from right to
left, both front and rear of each "rib" to form the
substructure, this substructure is held in place for
hand welding of the "spars" to the "ribs" by a
specially designed "jig" that insures complete square
and flatness of the total assembly. The next step is to
install the "static-bulbs"** and the "skin" is then welded
on. At this time the end-plates and any other "trailing
edges"
(if allowed) are installed.
NOTES:
*any engineering problems are carefully handled by a
hand chosen team of aerospace engineers that are outside
consultants for STI.
** the "static-bulb" is an exclusive patented friction
lowering device. Less friction means that the racer goes
faster through the air!
"NO Speed Shop, Auto Parts, or any mail order
catalog performance warehouse can give you a REAL
aerodynamic RACING WING like STI can. PERIOD!"
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![tech_info_main_page004008[1]](sprint1.jpg)
![tech_info_main_page004002[1]](sprint2.jpg)
![tech_info_main_page004003[1]](sprint3.jpg)
![tech_info_main_page004001[1]](sprint4.jpg)