Aubert PA-20 Cigale (oz12325)


Aubert PA-20 Cigale (oz12325) by Walt Mooney from Model Builder 1975 - plan thumbnail

About this Plan

Aubert PA-20 Cigale. Peanut scale rubber model.

Quote: "La Societe des Avions Paul Aubert presente La Cigale. What? You don't parlez Francais? Well, how about Paul Aubert's Grasshopper? Just shut up and build!

This is a simple little peanut scale model. The original airplane had a very square fuselage and a large horizontal tail. It seemed like a good design for a model that could be expected to fly with scale tail surfaces. It was built with a sheet balsa fuselage and sheet balsa tail surfaces to simplify construction. Only the wings are of built up stick-and-tissue. The only intentional deviation from exact scale was an increase in dihedral angle - the real plane had no observable dihedral.

Alas, the model did not fly right off the drawing board. In fact, as originally built, it would hardly fly indoors at all! This is pretty bad for the old Peanut Vendor's reputation. It simply would not turn to the left and spiraled in if it was turned to the right tight enough to miss the walls of the local basketball court. When I say it would not turn left, I mean it would not turn left with half of the original scale tail turned 30 degrees. Who ever heard of that stubborn a model?

So it was taken home and the problem mulled over a bit. The result: a larger vertical tail as shown on the plans. It is now quite happy turning left. I suspect that a decrease in dihedral angle might have also corrected its resistance to a left turn, but increasing the size of the vertical was lots easier than trying to get the wings off and put them back on with less dihedral, and besides, the spiral diving in right turns was a little worrisome. (Modelers could tack wings on at less dihedral and try a scale rudder before going to the larger rudder.)

Construction of the model is simple enough, so not much need be written about it. The nose end is added to the basic fuselage structure after the sides have been assembled on the formers, and the bottom skins attached. Right at the front of the sides, 1/16 by 1/8 balsa reinforcing sticks are cemented inside and crosspieces are added to make a square-ish frame just behind the nose block. Cement the side cowls to the sides and the bottom cowl block to the bottom skin. Rough carve the top cowl block and hollow it out, then cement it in place. Temporarily cement the nose block in place, then carve and sand the nose to final contours.

Don't forget the side doublers on the inside, where the aft motor peg penetrates the fuselage. The grain on these pieces must go up and down, that is, cross grain to the fuselage. Add a skin of cement to the inside of them as a further reinforcement to help take motor loads. Note also the round hole that should be left open on the bottom in the area of the aft peg. It is dark inside of sheet balsa fuselages, and the hole makes installing rubber motors much easier.

The landing gear wire is inserted through a slit in the bottom skin just forward of Former "B" and cemented in place. Use a sliver of balsa to fill the slit.

Red tissue was used to cover the wings, to color the top of the fuselage, and the top and bottom of the horizontal tail. It was also used to make the license letters. French registration letters always start with F, and I didn't know what the real registrations should be. However, modeling is lots of FUN, so.

The wheels are 3/4 inch diameter hardwood, made by Marlow Engineering, 6850 Vineland, North Hollywood, Ca. 91605, which also makes kits and other interesting accessories. The catalog is 20¢.

The thrust bearing is a nylon one, designed by Peck Polymers, for small rubber models; they can be obtained from Peck or from Bill Hannan Graphics, Box A, Escondido, Calif 92025. Catalog 25¢.

The prop used on the model is a cut down Testor’s prop from one of their ready-to-fly models. I don't know any other way to get one of these specific propellers, but I wish Testor’s would put them on the market all by themselves. However, both Hannan and Peck can supply suitable plastic props and Marlow makes balsa ones that are easy to finish into lightweight propellers.

Wire, sheet balsa and tissue are obtainable at your local model shop. Tell 'em the Peanut Vendor sent you."

Supplementary file notes



Did we get something wrong with these details about this plan (especially the datafile)? That happens sometimes. You can help us fix it.
Add a correction

Aubert PA-20 Cigale (oz12325) by Walt Mooney from Model Builder 1975 - model pic

  • (oz12325)
    Aubert PA-20 Cigale
    by Walt Mooney
    from Model Builder
    February 1975 
    13in span
    Scale Rubber F/F Cabin Civil
    all formers complete :)
    got article :)
  • Submitted: 30/06/2020
    Filesize: 251KB
    Format: • PDFbitmap
    Credit*: JanNovick

  • Aubert_Cigale | help
    see Wikipedia | search Outerzone

    ScaleType: This (oz12325) is a scale plan. Where possible we link scale plans to Wikipedia, using a text string called ScaleType.

    If we got this right, you now have a couple of direct links (above) to 1. see the Wikipedia page, and 2. search Oz for more plans of this type. If we didn't, then see below.

    ScaleType is formed from the last part of the Wikipedia page address, which here is
    Wikipedia page addresses may well change over time.
    For more obscure types, there currently will be no Wiki page found. We tag these cases as ScaleType = NotFound. These will change over time.
    Corrections? Use the correction form to tell us the new/better ScaleType link we should be using. Thanks.

Aubert PA-20 Cigale (oz12325) by Walt Mooney from Model Builder 1975 - pic 003.jpg
Aubert PA-20 Cigale (oz12325) by Walt Mooney from Model Builder 1975 - pic 004.jpg

Do you have a photo you'd like to submit for this page? Then email

User comments

No comments yet for this plan. Got something to say about this one?
Add a comment



Download File(s):
  • Aubert PA-20 Cigale (oz12325)
  • Plan File Filesize: 251KB Filename: Aubert_PA-20_Cigale_oz12325.pdf
  • Supplement Filesize: 824KB Filename: Aubert_PA-20_Cigale_oz12325_article.pdf
  • Supplement Filesize: 15KB Filename: Aubert_PA-20_Cigale_oz12325_transcript.pdf
  • help with downloads


* 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.


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.


Terms of Use

© Outerzone, 2011-2020.

All content is free to download for personal use.

For non-personal use and/or publication: plans, photos, excerpts, links etc may be used, provided that full and clear credit is given to Outerzone with appropriate and specific direction to the original content i.e. a direct hyperlink back to the Outerzone source page.

Unauthorized use and/or duplication of this material without express and written permission from this site's owner is strictly prohibited. If we discover that content is being stolen, we will consider filing a formal DMCA notice.