Ryan SC (oz7151)

 

Ryan SC (oz7151) by Martin Carlidge from American Aircraft Modeler 1972 - plan thumbnail

About this Plan

Ryan SC. Scale model for 1/2A free flight.

Quote: "In the 1930s this plane was way ahead of its comtemporaries in design and performance. Here is a fine flying FF scale version. Ryan SC, by Martin Carlidge.

Tired of the same old high wing sport models? I was. While paging through back issues of AAM looking for something different, I came across the fine article and three-views of the Ryan SC, so this fine-looking Sport Cabin aircraft of the mid 30's became my next project.

Although the Ryan SC has a few characteristics, such as extreme wing taper and small tail surfaces, which are not normally associated with good free flight performance, it was decided to give her a go anyway. The first test frights quickly dispel fears and once you become used to the higher flying speed (she definitely is no floater) and trim her accordingly, she will turn in some fine flights.

Construction. The fuselage is the most difficult part of the model, so let's start with it. Begin by cutting all the bulkheads from 1/8 medium balsa. Assemble formers F-5 thru F-9 on the 1/4 in sq upper and lower keels, being especially careful to insure correct alignment. Install FW-1 (2 each) and formers F-3 and F-4. Butt glue 1/32 sheet balsa together to form a piece large enough for the fuselage skin. Use the template on the plan to cut the skin to shape. This is oversize and will be trimmed after assembly.

Soak the skin in very hot water for about 10 minutes, Carefully position the skin on the top keel member and wrap around the frame, allowing it to overlap at the bottom keel Carefully pin and tape the skin in place and allow to dry. Trim the skin by cutting through the overlapping layers, leaving a good butt joint at the bottom aft fuselage and at the top, just forward of the cabin. Allow the skin to dry, then remove it from former and bulkhead assembly.

Apply cement to the former and bulkhead assembly from F-5 aft to F-9 and place inside the molded skin. Again use pins and tape to secure it. Avoid application of pressure between bulk-heads, as this causes sagging. Now the skin can be glued to the bulkheads forward of F-5, and when completely dry, trimmed to shape. Do not trim the skin at the wing attach area until fitting the wing assembly. Add the 1/16 plywood firewall, being sure to epoxy the nuts for the engine mount to the back side. Add the cowl mount tabs. Mount the engine as indicated on the drawings..."

Martin Carlidge Jr.'s Ryan SC from American Aircraft Modeler magazine issue 08-72.

Direct submission to Outerzone.

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Ryan SC (oz7151) by Martin Carlidge from American Aircraft Modeler 1972 - model pic

Datafile:

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


    ScaleType: This (oz7151) 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.

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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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