Wittman Tailwind (oz10081)

 

Wittman Tailwind (oz10081) by Perry Peterson from Model Airplane News 1981 - plan thumbnail

About this Plan

Wittman Tailwind. Rubber scale model.

Quote: "Wittman Tailwind. Steve Wittman's 1953 classic home-built lightplane in rubber-powered scale form; has fine proportions for good scale flying. By Perry Peterson.

My keen interest in the Tailwind began on a brisk autumn morning in 1959 at a Sunday breakfast fly-in at Nebraska City, Nebraska. The airstrip was out behind Vic Grundman's barn on the south edge of town where my dad parked his Piper Tri Pacer. A Tailwind fitted with a nose wheel was just lifting off the sod runway as we arrived. If only I could find a 3-view of that Tailwind W-9L with the tri-gear... oh well, the search goes on.

Steve Wittman, the designer of the Tailwind, has been designing and building aircraft since the 1920s. His designs include successful racing planes such as Bonzo, Buster, and the current Witt's V, Not only was Bonzo a household word in the 1930s, Steve was widely known as a top air race pilot. Along with his long line of race planes, Steve designed and built small light private aircraft, and prior to the Tailwind he built the lesser known two-place Buttercup and the four-place Big X.

The Tailwind appeared in 1953 and has since become a classic in the home-built aircraft field. As proof of its sound design, it has been changed only slightly through the years while becoming a legend. The cowl shape has been altered, the wingspan has been increased from 20 ft 11 in to 22 ft 6 in, and the airfoil has been modified. It makes an excellent free-flight scale model subject and has been built in many sizes. There was even a 7 inch span Wittman Tailwind (oz7495) model designed by Walt Mooney and published in Model Airplane News in March 1962. The Tailwind presented here is a model of the prototype built by Steve Wittman in 1953, as it appears now in the EAA museum.

Construction. Make two identical side frames over the plan. For a plane this size it is important to select quite firm 1/16 in square balsa for the longerons; otherwise the fuselage could appear scalloped after the tissue is shrunk. Remove the fuselage side frames from the plan and join at the
tail post. Cut 1/16 in square crosspieces, using the top plan view for proper length, and glue in place starting at the rear and work-ing forward to the windshield and landing gear area. Use F-1 to join the fuselage at the front.

Form the landing gear from .030 in music wire, using the front view as a guide, and sandwich between two F-4s using epoxy. Clamp the sandwich firmly with model clamps while it is drying, (The clamps I used for this step were purloined snap clothespins and they worked great.) Now install this landing gear assembly in the fuselage at the point shown on the side plan view. Glue F-2 in place under the windshield area. Install an F-3 on each side of the fuselage between F-2 and F-4. Make F-5s as shown on the side view, trim to ex-act length, and glue in place..."

Wittman Tailwind, MAN, August 1981.

Direct submission to Outerzone.

Supplementary file notes

Article pages, thanks to RFJ.

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Wittman Tailwind (oz10081) by Perry Peterson from Model Airplane News 1981 - model pic

Datafile:
  • (oz10081)
    Wittman Tailwind
    by Perry Peterson
    from Model Airplane News
    August 1981 
    20in span
    Scale Rubber F/F Cabin Civil
    all formers complete :)
    got article :)
  • Submitted: 10/05/2018
    Filesize: 490KB
    Format: • PDFbitmap
    Credit*: Circlip, RFJ

ScaleType:
  • Wittman_Tailwind | help
    see Wikipedia | search Outerzone


    ScaleType: This (oz10081) is a scale plan. Where possible we link scale plans to Wikipedia, using a text string called ScaleType.

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    ScaleType is formed from the last part of the Wikipedia page address, which here is https://en.wikipedia.org/wiki/Wittman_Tailwind
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Wittman Tailwind (oz10081) by Perry Peterson from Model Airplane News 1981 - pic 003.jpg
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Wittman Tailwind (oz10081) by Perry Peterson from Model Airplane News 1981 - pic 004.jpg
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User comments

This is a truly fine designed scale model. I have built 3 to date, 1 went out of sight! A bitter sweet loss. A
Laura Hoxie - 07/07/2020
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  • Plan File Filesize: 490KB Filename: Wittman_Tailwind_20in_oz10081.pdf
  • Supplement Filesize: 2293KB Filename: Wittman_Tailwind_20in_oz10081_article.pdf
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Notes

* Credit field

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Scaling

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