Simple Cub (oz6426)

 

Simple Cub (oz6426) by Fred Reese from RCMplans 1985 - plan thumbnail

About this Plan

Simple Cub. Radio control model. Uses the Ace foam wing.

Quote: "The Simple Cub is the second in the Simple Series designs by Fred Reese featuring minimum construction and maximum performance schoolyard scale.

Next to P-51s, more models of Piper Cubs have been built than any other single aircraft. In fact, this is my sixth R/C Cub. There is just something special about a Cub. The Simple Cub is the second in a series of simple designs that I built last year. The Simple Citabria (oz7278) was the first. The Simple Series airplanes are designed to be the easiest possible construction that will produce an attractive, inexpensive, high performance schoolyard flier.

Basic construction can be completed in an evening. The wing is the popular Ace constant chord mini foam wing, and power can be anything from .049 to .10 cu. in. but a TD .049 is recommended. The larger engines actually fly the airplane slower, but give better vertical performance. The Simple Cub is quite fast and is very acrobatic, not a beginner's airplane, just simple. The Simple Cub has generous dihedral and a large rudder for good roll response. Ailerons are not needed to do consecutive rolls or even fly inverted.

The Simple Cub will take off from a hard surface easily if you give it a little shove to get it moving in a straight line. Once there is air moving around the rudder, the Cub will track straight with little or no correction required. The glide is fast when the engine quits and I usually don't try to slow it down until the Cub is on final approach and low, then just hold it off until it settles in on its own.

Construction. Cut out and use the fuselage side template to make two fuselage sides. Glue on the vertical grain balsa doublers over the shaded areas leaving slots for the firewall and bulkhead B. Glue on the balsa servo rail supports as this saves a lot of time later. Drill two 5/32 in holes in the firewall for the fuel lines and drill the four 1/8 in holes for the 2-56 blind nuts for the motor mount. Glue the blind nuts into the firewall and then glue the firewall and balsa bulkhead B to one of the fuselage sides..."

Direct submission to Outerzone.

Note this plan used the Ace Foam wing. For a plan showing how to construct a replacement wing in balsa (both tapered and straight-chord) see Ace Foam Wing (oz8557) thanks to AndyKunz.

Update 06/08/2020: Added vectorPDF and CAD (dxf and dwg) versions of this plan, thanks to Valeria367.

Supplementary file notes

Article.
VectorPDF plan tracing.

CAD file

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Simple Cub (oz6426) by Fred Reese from RCMplans 1985 - model pic

Datafile:
  • (oz6426)
    Simple Cub
    by Fred Reese
    from RCMplans (ref:946)
    August 1985 
    35in span
    Scale IC R/C Cabin Civil
    all formers complete :)
    got article :)
  • Submitted: 13/03/2015
    Filesize: 459KB
    Format: • PDFbitmap • PDFvector • CADfile
    Credit*: theshadow, Valeria367

ScaleType:
  • Piper_J-3_Cub | help
    see Wikipedia | search Outerzone


    ScaleType: This (oz6426) is a scale plan. Where possible we link scale plans to Wikipedia, using a text string called ScaleType.

    If we got this right, you now have a couple of direct links (above) to 1. see the Wikipedia page, and 2. search Oz for more plans of this type. If we didn't, then see below.


    Notes:
    ScaleType is formed from the last part of the Wikipedia page address, which here is https://en.wikipedia.org/wiki/Piper_J-3_Cub
    Wikipedia page addresses may well change over time.
    For more obscure types, there currently will be no Wiki page found. We tag these cases as ScaleType = NotFound. These will change over time.
    Corrections? Use the correction form to tell us the new/better ScaleType link we should be using. Thanks.

Simple Cub (oz6426) by Fred Reese from RCMplans 1985 - pic 003.jpg
003.jpg

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Download File(s):
  • Simple Cub (oz6426)
  • Plan File Filesize: 459KB Filename: Simple_Cub-RCM-946_oz6426.pdf
  • Supplement Filesize: 1373KB Filename: Simple_Cub-RCM-946_oz6426_article.pdf
  • Supplement Filesize: 225KB Filename: Simple_Cub-RCM-946_oz6426_vector.pdf
  • CAD Zip Filesize: 183KB Filename: Simple_Cub-RCM-946_oz6426_cad.zip
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Notes

* Credit field

The Credit field in the Outerzone database is designed to recognise and credit the hard work done in scanning and digitally cleaning these vintage and old timer model aircraft plans to get them into a usable format. Currently, it is also used to credit people simply for uploading the plan to a forum on the internet. Which is not quite the same thing. This will change soon. Probably.

Scaling

This model plan (like all plans on Outerzone) is supposedly scaled correctly and supposedly will print out nicely at the right size. But that doesn't always happen. If you are about to start building a model plane using this free plan, you are strongly advised to check the scaling very, very carefully before cutting any balsa wood.

 

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