DH83 Fox Moth (oz11805)

 

DH83 Fox Moth (oz11805) by Malcolm Harding 1993 - plan thumbnail

About this Plan

DH83 Fox Moth. Radio control scale model.

Quote: "Malcolm Harding's 59-1/2 in wingspan DH83 Fox Moth for 40-50 size engines and four function radio.

TAKE A LOOK AT SOUTHPORT next time you are visiting the Woodvale Rally, for one thing it is a delightful Victorian seaside town and it also has an unusual beach attraction. On the vast stretch of sand on the west beach is operated pleasure flying with a Cessna 172 and this is part of a long standing tradition. Inspiration for designing and building the Fox Moth model presented here came to Malcolm Harding as a result of the Southport operation, but in the days when it was operated by Giro Aviation Co of Southport with the DH83. Mr Giroux, founder of the company, is well into his nineties but Malcolm and his father have had the pleasure of meeting him and hearing of some of the exciting episodes in his flying - inevitable after 21 years of beach flying and carrying no less than 150,000 passengers - and who says there are no 'bold and old' pilots.

The prototype model was finished to resemble the Southport sand flyer and has many successful flights to its credit. Powered by a Laser 45 four-stroke engine the model has a good reserve of power and the Fox Moth handles delightfully in the air. With the wing folding mechanism of the full-size aircraft incorporated in the model it is extremely compact to carry around and assembly literally only takes seconds.

Purists may think that the rudder leading edge is not to the true De Havilland outline. All I can say is, take a look at a number of rudder shapes on DH aircraft and you will see a variety of curves and lines, mainly resulting from the doped covering distorting the structural members. However, if you wish to change the shape, please feel free to do so. If you wish to change the wing sections, incidences, balance points etc then, YOU ARE ENTIRELY ON YOUR OWN. We sometimes get letters from readers asking what would happen if they changed this or that. If you do not know the likely consequences, or are not prepared to find out the hard way, we suggest you follow the designers recommendations. This is why I always prefer to see the prototype model flying, or at least have some good photographic proof that it performs well.

Construction: Malcolm Harding did not supply detailed building notes with the design and nor are they needed. This is a convention design of structure incorporation many recognised building methods and materials. The numerous photographic illustrations will help to make clear the construction of all area. Malcolm even stripped off the covering of his model to show some areas that were not shown in the original 'before covering' photographs.

Wings: You are strongly recommended to use the folding wing mechanism employed on the prototype model, the alternative of plug-in wings will add enormously to the complexity of rigging for flight. Before you commence construction look carefully at the drawings, cross referring between plan and side views and the scale drawings until you have clear in your mind the structure and folding methods. Particular points to note are that ailerons are fitted to the lower wings only. with individual micro servos and that allowance must be made in the length of the aileron lead for the wings to fold back. Because of the hinge geometry of the wing folding mechanism there must be a little play..."

Fox Moth, R/C Scale Aircraft, January 1993.

Direct submission to Outerzone.

Supplementary file notes

Article pages, thanks to RFJ.

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

DH83 Fox Moth (oz11805) by Malcolm Harding 1993 - model pic

Datafile:
  • (oz11805)
    DH83 Fox Moth
    by Malcolm Harding
    from Radio Control Scale Aircraft
    January 1993 
    59in span
    Scale IC R/C Biplane Cabin
    clean :)
    all formers complete :)
    got article :)
  • Submitted: 30/10/2019
    Filesize: 884KB
    Format: • PDFbitmap
    Credit*: Circlip, RFJ

ScaleType:
  • De_Havilland_Fox_Moth | help
    see Wikipedia | search Outerzone


    ScaleType: This (oz11805) 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/De_Havilland_Fox_Moth
    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.

DH83 Fox Moth (oz11805) by Malcolm Harding 1993 - pic 003.jpg
003.jpg
DH83 Fox Moth (oz11805) by Malcolm Harding 1993 - pic 004.jpg
004.jpg
DH83 Fox Moth (oz11805) by Malcolm Harding 1993 - pic 005.jpg
005.jpg
DH83 Fox Moth (oz11805) by Malcolm Harding 1993 - pic 006.jpg
006.jpg
DH83 Fox Moth (oz11805) by Malcolm Harding 1993 - pic 007.jpg
007.jpg

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, 2011-2022.

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.