Our successful "Little Flyer" TG-2 was conceived as a design study for all future SGS 2-8 or TG-2/LNS-1 kits to be produced. Its long been my belief that if a full scale aircraft is successful in design and engineering, that models derived from it require very little interpretation in order to be crafted by the modeler. Simple scaling by the designer with appropriate adaptation to balsa and plywood construction will yield similar results.
Jeff with the prototype TMRC TG-2 showing off the scale structure.
The framed prototype TG-2 just prior to covering.
With this in mind and because resources were available, I drafted the "Two-Seat Schwiezer", as it was known, from original Schweizer factory prints folling every detail regarding rib spacing and placement, spar locations and proportion as well as wing sheeting arrangements, fuselage station point locations for structural members and design and construction of tails. Wing ribs were redisigned to duplicate the full scale airfoil and cut from plywood.
Here are the specs for the adaptation of my 1:10 scale drawings enlarged 4X to yield the new 40% scale plans and parts. Of course about fifty hours of design reviews, parts checks and rearrangement of the plans sheets was required to develop a viable kit.
Length Overall: 121.2"(3.08m)
Fuselage cross section largest bulkhead: 18" x 10" (457 x 254cm)
Wingspan: 249.6" (6.34m)
Airfoil: NACA 4412
Wing root chord : 24" (609cm)
Wing root thickness 3" (76mm)
Length each wing: 119.79 (3.04m)
No. Ribs each wing: 44 (includes D section ribs at 1/2 spacing)
No. Aileron ribs each wing: 19
Height Overall: 35.56" (903cm)
Vertical tail span: 24.69" (627cm)
Horizontal tail span: 46.46" (1.2m)
Two kits of parts were produced in January of this year containing over 200 parts each and a beta build is currently underway. The beta kit included all laser cut parts for the assemblies plus instrument panels, decals, and five sheets of plans at 36" x 105" in length. Modeler is supplying the long stock and wing sheeting, hardware, adhesives and covering materials.
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