Brunner-Winkle Bird (oz7500)


Brunner-Winkle Bird (oz7500) by HA Thomas 1951 - plan thumbnail

About this Plan

Brunner-Winkle Bird (Bird Biplane). Control line scale model. Torp .035 Junior engine is shown.

Direct submission to Outerzone.

Subject is the private sport and training bipe of the 1930s. Brunner-Winkle Bird, from MAN March 1951 by H.A. Thomas.

Quote: "BACK in the '30s, a familiar private sport and training plane was the Brunner-Winkle Bird biplane. Similar to contemporary Wacos and Travelaires and powered by OX, Kinner, Wright, Jacobs and Warner engines, the Bird was a three-place open job of pleasing lines and noteworthy performance. Exceptional take-off and climbing abilities of the 125 hp Kinner version were demonstrated in exhibitions when it out-climbed a 300 hp autogyro of the period.

Because of trim nose lines, which lend themselves admirably to installation of an inverted engine, we have selected the original model Bird with the Curtiss OX-5 90 hp engine as prototype for our model. The plans are near true scale with the gear being only slightly extended for propeller clearance. The inverted Torp Jr. cylinder (OK .039 came on the market after the Bird model was designed - Editor) protrudes through the radiator opening in a most unobtrusive way considering the model's small size. For installation of other AA engines the firewall former can be moved to compensate for variations in crankcase length.

The real Bird's wings were somewhat on the thick side, so we employ sheet wing surfaces with light structure inside, particularly at strut attachment points. Using soft material, assembly is begun with the lower flat surfaces..."

Many thanks to Pit for ID and confirmation on this one.

Supplementary file notes

Article pages, text and pics, thanks to Pit.


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Brunner-Winkle Bird (oz7500) by HA Thomas 1951 - model pic

  • (oz7500)
    Brunner-Winkle Bird
    by HA Thomas
    from Model Airplane News
    March 1951 
    18in span
    Scale IC C/L Biplane
    clean :)
    all formers complete :)
    got article :)
  • Submitted: 17/02/2016
    Filesize: 243KB
    Format: • PDFbitmap
    Credit*: dfritzke
    Downloads: 1283

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Brunner-Winkle Bird (oz7500) by HA Thomas 1951 - pic 003.jpg
Brunner-Winkle Bird (oz7500) by HA Thomas 1951 - pic 004.jpg

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