Olympic II Electric (oz13439)

 

Olympic II Electric (oz13439) by John Torrance 2021 - plan thumbnail

About this Plan

Olympic II Electric. Radio control sailplane model for electric power.

Note the original Olympic II (oz5116) was an Airtronics kit, circa 1976. This here is a modern redrawn plan that shows a modified design with brushless electric power.

Direct submission to Outerzone.

Quote: "Hi Steve, attached is new set of plans for the above Airtonics kit from the seventies. I have redrawn the original plans and converted it to brushless motor power. The airfoil also has been modernised with an AG-35 section. The ribs are drawn at 100% thickness with optional 115% ribs for a thicker wing which some may prefer.

The original plane was a great floater but did not like the wind when it got stronger than a light breeze, hence the section change. I have drawn the origional wing section and it is available if wanted. Regards from Western Australia,"

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Olympic II Electric (oz13439) by John Torrance 2021 - model pic

Datafile:
  • (oz13439)
    Olympic II Electric
    by John Torrance
    from Airtronics
    2021 
    100in span
    Electric Glider R/C
    clean :)
    all formers complete :)
  • Submitted: 11/11/2021
    Filesize: 2591KB
    Format: • PDFbitmap
    Credit*: JohnTorrance
    Downloads: 2122

Olympic II Electric (oz13439) by John Torrance 2021 - pic 003.jpg
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Olympic II Electric (oz13439) by John Torrance 2021 - pic 004.jpg
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Olympic II Electric (oz13439) by John Torrance 2021 - pic 005.jpg
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Olympic II Electric (oz13439) by John Torrance 2021 - pic 006.jpg
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Olympic II Electric (oz13439) by John Torrance 2021 - pic 007.jpg
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User comments

The wing in the photos looks like the original Oly II one, open structure with turbulator spars. The Plan shows a D-tube sheeted LE construction with the modern airfoils.
Question: is an open structure more immune to extensive damage from rifle fire (assuming the bullet passes through the Monokote)? Or would the shock wave from a modern assault rifle bullet (e.g. AK-47) destroy the plane anyway?
Stefan Mochnacki - 17/08/2022
"WELL..." as one of my esteemed college professors would articulate, "it all depends." The first consideration would depend upon the shooter and accuracy of said rifle. The second consideration would depend on the status of the glider, i.e. in a resting and static position or in motion. In this instance, an AK-47 using 7.62X39 ammunition that is .004" larger than a standard .308, bullet coefficients would most likely ensure a pass through. Now under these same terms and from personal experience in the field hunting such quarry, a 12 gauge shotgun using "00" or "000" buckshot and dependent (there is THAT word again) upon range, would most likely destroy or at least significantly damage the glider beyond airworthiness regardless of the use of turbulators or D-box construction used in the wings, themselves. What kind of BBQ sauce do you like?
Bill - 25/01/2024
Here’s the finished Oly [main pic, 004-007]. Flies very nice. These colors are very visible at altitude. Bottom of wing is more white, no black. Bottom of fuse is white duct tape. Flying weight 3 pounds, only 1/2 ounce nose weight to balance at the rear of the spar.
Ross Martin - 02/02/2025
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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

This model plan (like all plans on Outerzone) is supposedly scaled correctly and supposedly will print out nicely at the right size. But that doesn't always happen. If you are about to start building a model plane using this free plan, you are strongly advised to check the scaling very, very carefully before cutting any balsa wood.

 

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