Jean Machine oz10192

 

Jean Machine - plan thumbnail image

Jean Machine - completed model photo

Submitted to Outerzone: 15/06/2018
Outerzone planID: oz10192 | Filesize: 512KB | Format: • PDFbitmap | Credit*: Circlip, RFJ

   

About this Plan

Jean Machine. Radio control sport biplane, for .10 engines and 4 channels.

Quote: "If you want the smallest airframe into which you can fit four servos Rx and Battery and which is fully aerobatic then this 'Jean Machine' should fit the bill. Mini radio gear will of course be required, the original models both had Futaba 133 servos, Rx and 225MA batteries. I like diesels and because I had a PAW 1.49 I fitted this, although a .10 Glo will do just as well. Some changes will have to be made to your cowling however. The airframe will take whatever loads you care to put upon it, only the rubber bands are limiting - and your eyesight!

Most of the construction is standard although the fuel tank and cabanes are a little unusual. How about a plywood tank? You can of course make up a tinplate tank but a ply one is so much easier and quicker. Suitably dressed, it will be fuelproof, light and can be made to fit into any hole. If a tank of more normal proportions is used, say fitted between F1 and F2, the clunk tube will be too short and will just hang in mid tank and will not follow the fuel around - the clunk won't be heavy enough.

Cut out the four sides from 1/32in ply getting them as square as possible. Using instant cyano glue make up the sides and one end. Drop a filler of baking soda along each joint on the insides and give this a few drops of cyano - mind the fumes given off! Slide in the filler and vent tubes and secure them with BS/CA. Pour into the tank some more cyano and run it around so that the insides get full covering of 'fuel proofer'. Make up the remaining end from 3/32 in balsa with a 1/32 in ply facing. This facing goes inside. Using cotton, bind the clunk to its tubing and the tubing to the brass feed pipe and add a drop of cyano to both bindings. Fit the feed pipe to the ply and build a BS/CA fillet around the joint..."

Jean Machine, RCM&E, January 1989.

Direct submission to Outerzone.

Supplementary files

Article pages, thanks to RFJ.

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oz10192 datafile

Jean Machine  
by Mike White
from RCME
January 1989 
24in span
Tags: IC R/C Biplane
all formers complete :)
got article :)

 

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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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