Contest Gas Model (oz15485)

 

Contest Gas Model (oz15485) by Frank Ehling, Phil Bernhardt 1974 - plan thumbnail

About this Plan

Contest Gas Model. Free flight power model. Wingspan 96 in.

The Frank Ehling Contest Gas Model (oz15487) first appeared in Air Trails, September 1937. This here is a later redrawn version from MB in 1974.

Quote: "Old Timer of the Month. Frank Ehling's Contest Gas Model. Billed simply as 'Contest Gas Model' this Frank Ehling design was published in the September, 1937 issue of Air Trails. The magazine cost 15 cents and the cover still carried 'Bill Barnes Air Novel' as part of the logo.

It was a funny coincidence that we had already planned to feature the model this month when we attended the SCIF Texaco contest at Taft, California, and found no less than three of them entered by Jim Adams, Cliff Silva, and Walt Parker. All three performed well, with Jim Adams' model recording a 41:54 flight, to take first place.

As with most OT models, construction is so simple and basic that no written building instructions are required for even a modeler of average skill. We'd like to make one suggestion, however: Since the wing is sheeted from the spars to the edges, it might be best to make full depth spars, notching ribs and spars half way through, in egg-crate fashion. This provides a glueing surface for the inner edges of the top sheeting. Frank, who is now AMA's Technical Director in Washington, also suggests balancing at the 50 percent chord position."

Direct submission to Outerzone.

Quote: "Contest Gas Model. Here's a fullsize rendering of the CGM for Model Builder Magazine drawn 40 years ago by Phil Berhardt, a frequent visitor to this site. Hopefully he'll be able to share a photo of his with the angry face and the unique flying stabiliser system."

Supplementary file notes

Article.

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Contest Gas Model (oz15485) by Frank Ehling, Phil Bernhardt 1974 - model pic

Datafile:
  • (oz15485)
    Contest Gas Model
    by Frank Ehling, Phil Bernhardt
    from Model Builder
    January 1974 
    96in span
    IC F/F
    clean :)
    all formers complete :)
    got article :)
  • Submitted: 17/07/2024
    Filesize: 572KB
    Format: • PDFbitmap
    Credit*: TomRyan
    Downloads: 262

Contest Gas Model (oz15485) by Frank Ehling, Phil Bernhardt 1974 - pic 003.jpg
003.jpg
Contest Gas Model (oz15485) by Frank Ehling, Phil Bernhardt 1974 - pic 004.jpg
004.jpg

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User comments

We also have the original 1937 article and drawings for this, coming up tomorrow.
SteveWMD - 20/08/2024
I remember Phil’s Ehling. He flew it with several engines (ignition & glow) and Jim Adams built two.
John - 21/08/2024
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Download File(s):
  • Contest Gas Model (oz15485)
  • Plan File Filesize: 572KB Filename: Contest_Gas_Model_oz15485.pdf
  • Supplement Filesize: 1231KB Filename: Contest_Gas_Model_oz15485_article.pdf
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Notes

* Credit field

The Credit field in the Outerzone database is designed to recognise and credit the hard work done in scanning and digitally cleaning these vintage and old timer model aircraft plans to get them into a usable format. Currently, it is also used to credit people simply for uploading the plan to a forum on the internet. Which is not quite the same thing. This will change soon. Probably.

Scaling

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