Auster J4 (oz16578)
About this Plan
Auster J4. Free flight scale model for rubber power or CO2. Wingspan 23 in.
Discontinued kit from Aerographics.
See also RCGroups build thread by idigbo at https://www.rcgroups.com/forums/showthread.php?1305909-Aerographics-Auster-J4
Note this here is the old and discontinued kit, with printwood parts. A modern version of this kit, revised, updated, redrawn and with laser-cut parts is currently available from Vintage Model Co, see see https://www.vintagemodelcompany.com/23-auster-j-4-by-aerographics
Direct submission to Outerzone.
Quote: "Steve, Attached is the Aerographics J4 plans and parts. Unfortunately due to USA tabloid sheet size the plans show enough to build from but are clipped down a bit. Cheers, George"
Supplementary file notes
Printwood.
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(oz16578)
Auster J4
from Aerographics
1990
23in span
Scale Rubber F/F Cabin Kit
clean :)
formers unchecked
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Submitted: 15/01/2026
Filesize: 286KB
Format: • PDFbitmap
Credit*: GeorgeGilbert
Downloads: 453
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ScaleType: This (oz16578) 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.
Notes:
ScaleType is formed from the last part of the Wikipedia page address, which here is https://en.wikipedia.org/wiki/Auster_J/4
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.
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User comments
I've never seen a model of this type (or indeed any type) needing that much sidethrust.bill dennis - 15/02/2026
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- Auster J4 (oz16578)
- Plan File Filesize: 286KB Filename: Auster_J4_oz16578.pdf
- Supplement Filesize: 122KB Filename: Auster_J4_oz16578_printwood.pdf
- help with downloads
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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