Jonny (oz4211)

 

Jonny (oz4211) by Wilfried Klinger 1975 - plan thumbnail

About this Plan

Jonny. Radio control sports model.

Quote: "A new plan in attachment : Jonny from the defunct German firma Wik Modelle. Span 59in".

Direct submission to Outerzone.

Update 12/01/2021: Added kit instructions (in German) includes full materials list and 2 pages of build pics, thanks to WalterStoehr.

Update 14/01/2021: Added kit instructions translated into English, thanks to ChrisPinn.

Quote: "Dear Model Flyer, The WiK Jonny is a model I designed to be extremely easy to build, has the best flying qualities so that it can be flown by every model flyer and an attractive appearance. The Vintage Look also allows simple construction methods. A fully symmetrical aerofoil section means that normal and inverted flying is equally good.

The model is designed so that the motor is installed without downthrust or sidethrust i.e. 0°/0°. The motor can be installed in any orientation, but the most advantageous is to rotate it 45° so that the muffler is located along the side of the fuselage. With the motor installed horizontally, vibration is minimized and the model is less contaminated by exhaust residue. However with a two leg landing gear, the muffler easily snags the ground when landing.

The kit includes a two leg landing gear as this complements the character of the model. However if you want to install a tricycle undercarriage, it’s not difficult. The Undercarriage Retaining Blocks 29 & 30 are moved 60mm rearwards and flipped left to right and vice versa so that the undercarriage is angled rearwards. Instead of using Spacer 34, fit our Undercarriage Mount Part 3322. (Presumably this was an engine mount with nosewheel attachment). Make sure that the motor is installed at 0°/0°. I personally think that a tricycle undercarriage is unnecessary as I have been able to get the model to take off everytime without any problems, even from grass. Don’t make the tailskid too short, otherwise it’s not possible to steer the model when it’s travelling the first few metres. It’s best to start the take off with full up elevator and as soon as it leaves the ground move the elevator back to neutral. Put power on slowly!

Well, we haven’t got to that stage yet and I’d like to give you a few construction tips that will get you to the model field as soon as possible. Please note: The part numbers correspond to the build sequence.

Glue the Fuselage Sides 1 & 1a together with UHU-Hart (a traditional balsa glue. It took me an age to find 1a. It’s a small part at the rear end of the fuselage). The Plywood Fuselage Doublers 2 are glued on with UHU-Coll or Ponal (both are white wood glues) and weighted down. Make sure that you make a left hand and a right hand part. While you are waiting for the glue to dry, cut out Former 3 and glue together balsa strips to make Formers 4 to 8 using the plan..."

Supplementary file notes

Instructions, in German.
Instructions, in English.

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Jonny (oz4211) by Wilfried Klinger 1975 - model pic

Datafile:
  • (oz4211)
    Jonny
    by Wilfried Klinger
    from Wik Modelle
    1975 
    59in span
    IC R/C Kit
    clean :)
    all formers complete :)
  • Submitted: 08/04/2013
    Filesize: 443KB
    Format: • PDFbitmap
    Credit*: PatrickUrbain
    Downloads: 4970

Jonny (oz4211) by Wilfried Klinger 1975 - pic 003.jpg
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Jonny (oz4211) by Wilfried Klinger 1975 - pic 004.jpg
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Jonny (oz4211) by Wilfried Klinger 1975 - pic 005.jpg
005.jpg
Jonny (oz4211) by Wilfried Klinger 1975 - pic 006.jpg
006.jpg
Jonny (oz4211) by Wilfried Klinger 1975 - pic 007.jpg
007.jpg
Jonny (oz4211) by Wilfried Klinger 1975 - pic 008.jpg
008.jpg

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User comments

My father told legendary tales of a mythical plane called a 'Jonny'. His old friends told tales of My Old Man doing stupidly fantastic things with this 'Jonny'. He was apparently great at inverted high speed passes, scraping the rudder along the center line of the runway, or flying 4m radius circles around the windsock. Now I never actually believed any of these 'stories' about this plane, having no evidence of a photo or a plan, until one day (while digging through the The Old Dude's stuff), I unearthed in an old box, and inside a nameless, torn rag-of-a-plan. With enthusiasm, I built this plane. When the Old Man saw the thing he went nuts - The Jonny. As a teenager, this plane taught me how to fly. The 1st Jonny had wing dihedral and rounded wing tips, as on the plan, this however, was soon modified. On build 2 I did a a flat 0 degree wing and blunt wing-tips. Later planes had flaps, spoilers (forgive me, I was young and stupid) and cowls. This plane does it all and more. It is the most docile, easy to fly trainer with a slightly forward CG (even on the flat wing), or a raging maniac acrobat with a slightly aft CG and large throws - flat spins are easy. As a family, everybody, my Dad and 2 brothers all got this easy to build plane for Christmas or a birthday over the years. Easy to fix if you crack on a poor landing, or rebuild if something stupid happens (like diving at full throttle and trying to pull up 5m above the ground). With the brushless revolution, a 50mm outrunner and a 6S battery, plug and fly ease is perfected. I have also messed with scale. 600mm, 1600mm, 1800mm and 2400mm wing spans working well. The most common has been the 1600mm with a 46 OS. Lightning. I have always had a Jonny in my hanger, and will always have. This is the ultimate plane. It checks all the boxes for a young inexperienced pilot, or even an old seasoned grump who's seen and flown it all. Oh yeah, There's a new legend going around about some hotshot scraping the rudder along a runway.
DrBryanBotha - 24/05/2013
Bryan, In my last trip to Buenos Aires / Argentina ( 2 weeks ago), I both e old almost complete kit Jonny. Now I am building and I hope to fly it in October. Do you use the wing tips like the original plan or did you modify? Best Regards,
RicardoDSirabonian - 25/08/2014
Hi Ricardo, I used the wingtips on the plan for the first few Jonny's I built. At about Jonny 3 I went for flat 90 degree tips. I used 10mm balsa for the tip ribs and sanded them to rounder edges. Two things came out of this modification. The wing was much easier to build; that fiddly wingtip was a thing of the past. I thought the modification would make the Jonny less stable, but there was no real effect that I could detect. My family loved them though. My brother Steven was the first to flat-spin the Jonny, that became a family pastime - climb out - flat-spin to the deck, yank it out and climb again. I think the aeronautical buffs might have something to say, but I like the plain flat tips.
Bryan - 19/07/2015
Greetz again! [more pics 007]
OlafP - 15/02/2018
I know this is work, but does anyone out there feel they could translate the kit instructions from German into English? Just the 2 full pages of text with build instructions. It seems like this is a popular model, and would be good to have.
SteveWMD - 12/01/2021
I'll be glad do the translation for you.
Best regards as always
Chris Pinn - 12/01/2021
Outstanding. Thanks, Chris. No rush with this, just whenever you have some spare time.
SteveWMD - 12/01/2021
Hi Steve and Mary, here is a picture of my Wik Jonny [008]. Best regards,
tiptipflyer - 15/01/2021
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Download File(s):
  • Jonny (oz4211)
  • Plan File Filesize: 443KB Filename: Jonny_59in_oz4211.pdf
  • Supplement Filesize: 5820KB Filename: Jonny_59in_oz4211_instructions_de.pdf
  • Supplement Filesize: 114KB Filename: Jonny_59in_oz4211_instructions_en.pdf
  • help with downloads
 

Notes

* Credit field

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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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