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Details about  Great Planes ‘Super Sportster 20’ Plan - 48” Span - Low wing sport design

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Great Planes ‘Super Sportster 20’ Plan - 48” Span - Low wing sport design
Great-Planes-Super-Sportster-20-Plan-48-Span-Low-wing-sport-design
Item Ended
Item condition:
Seller refurbished
Ended:
11 Sep, 2013 21:40:51 BST
Starting bid:
£4.99
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Postage:
£5.25 Royal Mail International Standard (Small Packets) | See details
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Item location:
North West England, United Kingdom

Description

eBay item number:
281164990329
Seller assumes all responsibility for this listing.

Item specifics

Condition:
Seller refurbished: An item that has been restored to working order by the eBay seller or a third party not approved by ... Read moreabout the condition
 

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 PLAN SET ONLY

YOU ARE NOT BIDDING FOR A KIT OR AN AIRFRAME

 

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 America. The ‘Super Sportster 20’ has a wingspan of 48” and features a symmetrical wing section. The ‘Super Sportster 20’ was originally designed for 2-stroke motors around .19 - 0.25cu in. and 4-channel proportional RC equipment. The build manual however covers the fitment of 4-stroke motors showing the installation of a Saito 30. With the advances in electric flight technology, it would also make a nice compact electric flight model.

 

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 CAP 21 type aerobatic ship’. This opens up several opportunities for the scratch builder, such as changing the shape of the tail group, whilst maintaining a similar area, altering the cockpit canopy (Either to suit what you may have to hand, or even going to ‘open cockpit with fly-screen). This is one of those designs that you can readily personalise ! ….. & avoid that ‘just another ARTF’ feeling down on the field !

 

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” APC-E propeller, running on 3S or 4S Li-Po batteries via a 40 amp ESC , with the prop size set to limit the maximum current draw to around 25-28 amps maximum should equate to something equivalent to a good 20 cu.in (3.5cc) 2-stroke motor.

 

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 ESC ! ) controls. This is a typical conventional set up that keeps the whole model simple and functional. You may wish to follow the popular current trend of fitting one servo in each wing panel to provide a direct link to the aileron and enable a crisper response, with the opportunity to experiment with aileron differential settings and flaps when using a computerised transmitter.

 

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 PVA).

 

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.

 

 

UK postage & packing will be £2.00 First Class, with plan folded in large envelope.

 

Can post overseas. £4.00 for Europe, and £5.25 for the rest of the world.

Combined postage discount available on multiple purchases,  please await  invoice

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