Avro 504K (oz947)
About this Plan
Avro 504K. Rubber scale 2-seater biplane model.
Quote: "ALL DEDICATED aeromodellers know that every once in a while they build a model that has just that extra bit of appeal, that additional thrill some of their other models do not possess. The rubber-powered Avro 504K (full-size plans on following pages) proved to be just such a model. Test flying this little biplane and seeing it airborne silhouetted against the evening sky recalled a day when the author watched the real Avro 504K, G-EBYW of Aviation Tours Ltd, at an air display in the early 1930's giving air-minded enthusiasts their aerial baptism.
Begin by constructing two basic fuselage sides from 3/32 sq in strip, and 3/32 in sheet, join with 3/32 sq in cross members. Add the 1/16 in sheet formers, and finally the 3/32 sq in and 1/16 sq in stringers. Check at each stage for accuracy of construction. Firmly cement in place the pieces holding the rear dowel peg, and sheet piece taking the tail-skid wire. Before adding the thin card front decking bend the 20 s.w.g. wire centre section front and rear struts. Cement these accurately to the inside of the nose sheeting where indicated. The paper strut fairings can now be added. Reinforce strut attachments with silk or linen tape ieces. Add the tail-skid unit.
Fill in the underneath of the nose with 3/32 in sheet. Build engine cowling from laminated sheet, sanding carefully to shape. Cement front formers M and N to fuselage, and complete by assembling engine cowling complete with dummy cylinders to former M. Before covering, sandpaper completed fuselage, rearwards of the dowel peg. Keep rear of fuselage as light as possible. Fit 1/16 in sheet pieces A between formers E, F, G (see front view on plan). Cover with lightweight tissue leaving slot at rear of fuselage for front of tailplane. Watershrink the tissue and give one coat of clear dope..."
Update 26/03/2018: added article (publication unknown), thanks to RFJ.
Update 29/03/2018: re-scaled this plan to correct full size at 18in wingspan, thanks to anon. Have re-aligned the stiched sections too.
Supplementary file notes
Previous scan version.
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
by Ray Malmstrom
from Model Engineer
Scale Rubber F/F Biplane Military Bomber
all formers complete :)
got article :)
Found online 30/04/2011 at:
Format: • PDFbitmap
Avro_504 | help
see Wikipedia | search Outerzone
ScaleType: This (oz947) 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 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 firstname.lastname@example.org
User commentsMeasured wingspan is 7.5 inches. Measured plan sheet is 12 x 5 inches.
anon - 29/03/2018
You're right. Fixing this one now.
SteveWMD - 29/03/2018
Add a comment
* 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.
© 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.