Holy Mackerel (oz3568)


Holy Mackerel (oz3568) by Kenneth Pruitt from Flying Models 1952 - plan thumbnail

About this Plan

Holy Mackerel (sometimes mis-spelt as 'Mackeral'). Free flight power model.

Quote: "The popular configuration for free-flight models in our part of Texas has been high pylons with short noses and long tail moments. This type of model is very efficient, and it has the skyrocket climb all fellows look for, plus very good gliding qualities.

However, this type of model generally is very sensitive and hard to adjust the least warp or misadjustment and the results are disastrous. Our Holy Mackerel was designed to overcome the bad qualities of the pylon and yet remain on a par as far as performance is concerned. The final result was a model with a better than average contest performance - yet one easy to build and adjust.

Flight tests have shown remarkable character-istics. On a clear day with a slight breeze out of the South, a three-flight average showed 4:13 minutes with no thermal activity. There have been two thermal flights timed for over 10 minutes, and one model was lost 00S on a test flight.

Construction, although a little different, is very simple; an expert or novice should have no trouble. Start by enlarging the plans to four times their present size (unless otherwise indicated) by the graph method or another manner. Select hard firm balsa for the fuselage. Rip three pieces 3/4in wide from a sheet of 3/16 x 3 x 36 and splice as shown to make two pieces 55-1/2in long for crutch sides. Cut to shape, taper rear as shown, and pin to plans..."

Quote: "The penultimate drawing from Decade of Designs is the Holy Mackerel. A shoulder wing sports free flight model for 1.5 to 2.5cc motors. I know the drawing gives 09 to 15 but I like the old money so to speak. Interesting design with box front and triangular rear fuse." This is a modern redrawn plan in PDFvector format. This plan was printed in Flying Models Decade of Designs (1), published 1960.

Direct submission to Outerzone.

Update 14/01/2018: added article, thanks to RFJ.

Supplementary file notes

Original 2 page 10x8 print of the plan.


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Holy Mackerel (oz3568) by Kenneth Pruitt from Flying Models 1952 - model pic

  • (oz3568)
    Holy Mackerel
    by Kenneth Pruitt
    from Flying Models
    February 1952 
    62in span
    IC F/F
    all formers complete :)
    got article :)
  • Submitted: 18/10/2012
    Filesize: 244KB
    Format: • PDFvector
    Credit*: hogal

Holy Mackerel (oz3568) by Kenneth Pruitt from Flying Models 1952 - pic Supplement_plan.jpg

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Download File(s):
  • Holy Mackerel (oz3568)
  • Plan File Filesize: 244KB Filename: Holy_Mackerel_oz3568.pdf
  • Supplement Filesize: 1627KB Filename: Holy_Mackerel_oz3568_article.pdf
  • Supplement Filesize: 242KB Filename: Holy_Mackerel_oz3568_original.pdf
  • help with downloads


* Credit field

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