Avro 504K (oz16559)

  1. Home
  2. Avro 504K
 

Avro 504K (oz16559) by Lee Campbell - plan thumbnail

About this Plan

Avro 504K. Peanut scale free flight model biplane, for rubber power. Wingspan 13 in.

Quote: "AVRO 504K Assembly: Cut all parts from balsa sheets, leaving paper pattern attached until just. beforeusine. patt. This keeps small thin parts from splitting, and there is no printing on parts when assembled.

I would recommend using a resin glue such as 'Se-cur-it' or 'Tite-bond' since they do not shrink while drying (which would warp these thin sections). Cover plans with wax paper or Handiwrap before using to prevent glue from sticking to plans.

Construct wings over plans, using sticks and printed parts as shown. Bend tip sections to follow the curve of the underside of the ribs. Both wings should have 1/2 in dihedral each side plus 1/16 in washout. Cover wings with tissue and after shrink (be sure tissue is cemented to blocks where struts attach and to underside of ribs), pin wings onto plans with blocking while drying to prevent warps and assure washout, drill holes in wing blocks to receive struts where shown.

Assemble interplane and cabane struts with 1/32 sq and printed parts as shown and spot glue temporary strut jigs on to maintain alignment until wings are mounted, leave lower wing pinned to plans (with dihedral blocking) glue on interplane struts and then upper wing, locating all struts in proper pockets. Let dry thoroughly.

Tail sections are constructed over plans using strip stock as noted. This type of construction is very light and strong if joints are accurately cut and cemented. Select the lightest wood available for these pieces. Trim outsides to smooth contour before covering, water shrink tissue, pinning parts to blocks to prevent warping while drying.

Construct two fuselage sides over Side View (frames shown hatched for clarity) then assemble together over plan, cementing in cross pieces where indicated by black dot on side view. Cement formers in place and cover top of fuselage and cowls with stiff paper pattern provided..."

Direct submission to Outerzone.

Supplementary file notes

Instructions.
Parts.

Corrections?

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

No model pic found for this plan

Datafile:
  • (oz16559)
    Avro 504K
    by Lee Campbell
    13in span
    Scale Rubber F/F Biplane Kit
    clean :)
    all formers complete :)
  • Submitted: 24/01/2026
    Filesize: 176KB
    Format: • PDFbitmap
    Credit*: GeorgeGilbert
    Downloads: 336

ScaleType:
  • Avro_504 | help
    see Wikipedia | search Outerzone
    ------------
    Test link:
    search RCLibrary 3views (opens in new window)

    ScaleType: This (oz16559) 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/Avro_504
    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.

Do you have a photo you'd like to submit for this page? Then email admin@outerzone.co.uk

User comments

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

 

 
 

Download File(s):
 

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.

 

Terms of Use

© Outerzone, 2011-2026.

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.