Ryan S-C (oz11143)

 

Ryan S-C (oz11143) by Alan Booton from Air Trails 1938 - plan thumbnail

About this Plan

Ryan S-C. Rubber scale model.

Quote: "The RYAN S-C by Alan D Booton.

Real performance with a flying scale model - a lightweight, large size model emphasizing stability and duration.

PRODUCTION has just been started by the Ryan Aeronautical Company on the two models of the new S-C three-place sport plane. The only difference in these two models is the choice of a Warner or a Menasco engine. The performance of the ship is approximately the same with either engine, top speed being 150 mph and landing speed 45.

The Ryan Company is a pioneer of metal construction in planes, and in the model of the Menasco powered S-C it will be noted that the metal fuselage is simulated, together with other external features. The model is larger than usual and of simple construction, and due to its size, makes longer flights than could be expected otherwise.

FUSELAGE Prepare a 6 x 8 in sheet of 1/16 balsa plywood by cementing cross-grain 1/32 sheets. Keep this weighed down several hours to dry, then cut out the formers in pairs, except DT, which can be cut from 1/16 sheet.

Pin the top and bottom longerons to the drawing and cement the formers to their respective stations. The drawing shows a continuation of the top longeron to aid in assembly. This is cut away just before covering the fuselage forward of F. Bend a strip of 3/32 sq so that it will lay in the former slots without forcing, then cement it in place. Cement 1/16 sq diagonals between the formers from the bottom longeron to the middle longeron. After this is dry, remove from the drawing and build the other side directly to it in the order the first half was made. Include the rear hangar as F is cemented on.

Since there is no bulge in the fuselage to the rear of former F, the sheet covering can be wrapped around the frame like a cone. Cut 1/32 sheets diagonally to form an oversize pattern similar to the miniature pattern on sheet 2, in a dry state at first, then when the setup is satisfactory, cement the parts together. When dry, cement the top longeron to the center of pattern. In other words, invert the frame and cement it to the blank. When dry, wrap the cover around the frame and trim away the excess sheet, then cement members that will touch the sheet, and with rubber bands bind the cover to the frame. Cover the frame forward of F with narrow sheets.

Cement plain #1 ribs (1/16) to the stubs of E and F in the position shown by the broken lines of the rib on sheet 2. Cement the fillet sheets on. These must be made by cut-and-try with pieces of paper, but the final appearance will be noted by reviewing the photos.

Cut away the temporary top longeron, complete the top of the fuselage front..."

Plan assembled, stitched together and cleaned, from raw scans at http://www.theplanpage.com/Months/2211/ryansc.htm

Direct submission to Outerzone.

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Ryan S-C (oz11143) by Alan Booton from Air Trails 1938 - model pic

Datafile:
  • (oz11143)
    Ryan S-C
    by Alan Booton
    from Air Trails
    May 1938 
    39in span
    Scale Rubber F/F LowWing Civil
    all formers complete :)
    got article :)
  • Submitted: 24/04/2019
    Filesize: 392KB
    Format: • PDFbitmap
    Credit*: Pilgrim, GTHunter

ScaleType:
  • Ryan_S-C | help
    see Wikipedia | search Outerzone


    ScaleType: This (oz11143) 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/Ryan_S-C
    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.

Ryan S-C (oz11143) by Alan Booton from Air Trails 1938 - pic 003.jpg
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Ryan S-C (oz11143) by Alan Booton from Air Trails 1938 - pic 004.jpg
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Ryan S-C (oz11143) by Alan Booton from Air Trails 1938 - pic 005.jpg
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* 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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