Great Lakes Special (oz7223)


Great Lakes Special (oz7223) by Gordon Whitehead from RCMplans 1989 - plan thumbnail

About this Plan

Harold Krier's Great Lakes Special. Radio control sport scale model biplane. Subject is the highly-modified 1931 Great Lakes Special flown by Harold Krier in the 1950's.

Quote: "Over the past 10 months I've been having a ball putting the ship through its paces. In fact, I haven't had a proper aerobatic biplane for the past 10 years, and 1 swear that I feel 10 years younger again. Complete flying enjoyment is guaranteed with this machine, so let's get down to the serious part now.

My prototype model uses an Enya .46 4-stroke turning a Graupner 11 x 6 grey propeller and burning 10% nitro 2-stroke juice - I like plenty of lubrication in my engines. The exhaust pipe sports an O.S. pressure fitting which applies exhaust pressure to the 6oz fuel tank. For first flights, I suggest that you add lead to get the CG at the forward point. When you have become used to the model, try moving the CG back to the aft position. The main wheels are set quite well forward and the gear has a wide track, making the ground stability good. However, the rigid legs make the model quite bouncy over rough ground. For all take-offs, use the low control throws as shown on the plan. A spot of up elevator at the start of the run will prevent nosing over, and slight right rudder is used to keep her straight. Using full throttle, the model breaks ground in less than 10 yards, and pointing the nose upwards produces one heck of a climb out. These small 4-strokes have come a long way in the past three or four years..."

Steve & Mary - Here's Gordon Whitehead's Great Lakes Special from October, 1989 RCM. It's 47 inch span, for a .40 2-stroke or .46 4-stroke. I rescaled and massaged scans provided by RCGroup's tri-pacer in post and attach both combined and separated plan & parts scans. I also attach the article scan done by RCG's davidterrell80 in post Wear 'em in good health!

Direct submission to Outerzone.

Supplementary file notes

Article pages, text and pics.


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Great Lakes Special (oz7223) by Gordon Whitehead from RCMplans 1989 - model pic

  • (oz7223)
    Great Lakes Special
    by Gordon Whitehead
    from RCMplans (ref:1053)
    October 1989 
    47in span
    Scale IC R/C Biplane Civil
    all formers complete :)
    got article :)
  • Submitted: 18/11/2015
    Filesize: 1144KB
    Format: • PDFbitmap
    Credit*: DPlumpe, tri-pacer

  • Great_Lakes_Sport_Trainer | help
    see Wikipedia | search Outerzone

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Great Lakes Special (oz7223) by Gordon Whitehead from RCMplans 1989 - pic 003.jpg
Great Lakes Special (oz7223) by Gordon Whitehead from RCMplans 1989 - pic 004.jpg
Great Lakes Special (oz7223) by Gordon Whitehead from RCMplans 1989 - pic 005.jpg

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  • Great Lakes Special (oz7223)
  • Plan File Filesize: 1144KB Filename: Great_Lakes_Special_47in-RCM-1053_oz7223.pdf
  • Supplement Filesize: 1298KB Filename: Great_Lakes_Special_47in-RCM-1053_oz7223_article.pdf
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