Yahoo 40 (oz6606)


Yahoo 40 (oz6606) by Dave Harris 1993 - plan thumbnail

About this Plan

Yahoo 40. High performance sport biplane.

Quote: "Hi Steve. Back in the mid 1980s, I designed and built a .40 sized aerobatic biplane that turned out to be a lot of fun. It flew very nicely - much better than I expected - and was built by several club members too. Over the next few years, I developed and refined it a fair bit and thought I might as well see if RCM would be interested in a construction article. They were, so I put something together and they published the plan and article in their December 1993 issue.

I think it must have been the first CAD plan they had ever come across. In my submission, I sent them just the DWG file thinking they would take it from there. The editor, Dick Kidd, asked me what that was and what he was supposed to do with it! So, per his request, I had it plotted on mylar and mailed the hard copy to him. That would be what they used for they plans they offered for sale.

My attached submission to you is based on the original CAD drawing from 1993, essentially unchanged. I don't seem to have a usable original hard copy. Because of all the hardware and software changes there have been over the last 25 or so years, the file doesn't plot exactly the same as the original mylar I sent to RCM but the differences are very minor and involve only things like the rendering of some font styles.

The files I'm sending you are a PDF (plotted directly from the original CAD file), the CAD file itself (I would certainly do things quite a bit differently now!), and a scan of the published article (from a somewhat aged and yellowed copy of the magazine). I hope these are of some interest and use to you.

Thank you for everything you do to bring Outerzone to the modeling world. It is truly a world-class operation without equal anywhere, and is doing far more to encourage the continuation of the essence of our hobby than any other organization or entity of any kind, anywhere. May it live forever!


Direct submission to Outerzone.

Supplementary file notes

Article pages, text and pics. Complete 15 pages.

CAD file

This plan is available for download in CAD format.


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Yahoo 40 (oz6606) by Dave Harris 1993 - model pic

  • (oz6606)
    Yahoo 40
    by Dave Harris
    from RCMplans (ref:1158)
    December 1993 
    45in span
    IC R/C Biplane
    clean :)
    all formers complete :)
    got article :)
  • Submitted: 02/05/2015
    Filesize: 421KB
    Format: • PDFvector • CADfile
    Credit*: DaveHarris
    Downloads: 2457

Yahoo 40 (oz6606) by Dave Harris 1993 - pic 003.jpg
Yahoo 40 (oz6606) by Dave Harris 1993 - pic 004.jpg

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