Details about Great Planes ‘Super Sportster 20’ Plan - 48” Span - Low wing sport designSee original listing
11 Sep, 2013 21:40:51 BST
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North West England, United Kingdom
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Great Planes ‘Super Sportster 20’ Plan - 48” Span - RC - Low Wing Sport Design
Here is a reprinted plan set made available from the archive of a collective of fellow aero-modelling enthusiasts. The archive contains older and hard to find RC and free flight model plans as well as rare, or out of production, kit plans.
A non-profit making service by aero-modellers for aero-modellers
The plan set offered is a high quality print and does not fade in strong sunlight like the traditional dye-line prints used by the majority on plan suppliers in the past
THIS LISTING IS FOR A
Here is the offer to bid on a reprinted restored plan for the Great Planes ‘Super Sportster 20’, which was a popular low wing sport model that originates from the early eighties, and has been out of production for some time.
The original ‘Super Sportster 20’ design was by Don Anderson, and it was kitted by Great Planes Model Manufacturing Co of
The Great Planes ‘Super Sportster 20’ is a pure sport model for the club flier and makes an ideal first low-wing model, for a relatively modest investment. It was carefully thought out to meet the needs and desires of a wide range of sport fliers. You can build it as a ‘tail-dragger’ or with tri-cycle undercarriage. The build manual even suggests it is open to mild customisation by the experienced modeller, stating ‘for the creative builder it can be detailed to resemble a warbird, Formula 1 racer, or a
The model features straightforward built up construction to provide a rugged airframe well suited to club flying. The single sheet plan (31” x 43” Approx with crisp black print on white paper) is very nicely detailed, with full-size sketches all the fuselage formers. The front deck of the fuselage is carved & sanded from sheet and rear turtle-deck is stringered over curved formers.
The wing rib details are easy to determine from the section shown on the elevation of the fuselage. This plan contains all the detail necessary to readily replicate the wooden parts of the kit !
If you are a ‘retro’ enthusiast, and appreciate a bit of traditional building, then this plan set offers you the opportunity to replicate the Great Planes ‘Super Sportster 20’, and personalise it to suit your own preferences and flying style. Even today, it remains a pleasant and very enjoyable sport model that is certainly not significantly disadvantaged by the age of the design, when compared to modern commercial offerings. This excellent design lends itself nicely to a little ‘modernisation’, which can enhance the performance envelope of this ‘classic retro’ machine. A great bit of nostalgia for modellers that have had, or flown, any of the Great Planes ‘Super Sportsters’ in the past !
The recommended engine range on the plan is .19 to .25 cu in 2-stroke. You could fit the equivalent 4 stroke (Saito 30). You may even wish to consider an electric conversion. (This is certainly feasible with modern brushless motors & Li-Po batteries. For example, a budget Tornado 3536 Thumper brushless motor (outrunner), turning a 9-10” x 4-6”
You are buying a plan set only – this is not a kit or an airframe !
This is a traditional balsa & plywood build that provides a comparatively quick to build airframe.
The fuselage is a simple box structure, with curved decking to the top front & rear of the fuselage. The plan shows full details of all parts & formers (F1 – F6) for the fuselage construction. The tailplane, elevator, fin & rudder are all sheet construction.
The wing is shown as an individual built up panel, but with the wing being symmetrical, both panels can be built over that section of the plan. The wing is parallel chord, which keeps the build simple. Details are given for the wing ribs in a general section, and a sketch of the dihedral setting is shown, utilising a tapered rib and glass fibre bandage. Some builders may prefer to use a more conventional plywood dihedral brace, and that could easily be incorporated if desired.
The wings are fixed with two birch dowels at the LE and two nylon bolts at the TE to provide a positive location.
The model can be built it as a ‘tail-dragger’ or with tri-cycle undercarriage. with the main fixed undercarriage mounted to the wing (Two different locations shown –dependant on configuration chosen). There is a sketch for the main undercarriage legs, and a commercial nose leg could be used for the tricycle undercarriage version. A steerable tail wheel is shown for the ‘tail-dragger’, but this is tiny and it may be more practical to incorporate a tailskid if you operate from a grass strip (simple modification).
The Great Planes ‘Super Sportster 20’ built as shown on the plan has 4-Channel Aileron/Rudder/Elevator and throttle (or
With the exception of the cockpit canopy, this design does not require any special, or custom-made parts, so all necessary items should be readily available from your local model shop. The model could readily be adapted to suit commercial canopies, so you can customise this item if you wish to express your individuality ! Alternatively, you could use carved foam skinned in epoxy glass cloth (Or brown paper & thinned
The plan clearly shows the position for the centre of gravity, and provides recommendations for the travel of the control surfaces. (Try them for your first flights, then adjust to taste ! )
The build is straightforward and would not present any problems to an experienced kit builder. It would even suit a novice plan builder. The model could even be used as a 4 - channel ‘low-wing’ trainer if set up on reduced throws and used with a “buddy box” system and competent instructor.
Here is the chance to build a replica of the Great Planes ‘Super Sportster 20’ at a price much less than that of a comparable kit. I would guesstimate you would need around £15-20 worth of wood for this model. More work … but more satisfaction !
An electronic copy of the original build manual (44 pages) is supplied free of charge with the plan.
Bidding starts at £4.99 for this plan.
Can post overseas. £4.00 for
Combined postage discount available on multiple purchases, please await invoice