Witch MkI (oz10756)


Witch MkI (oz10756) by George Woolls 1950 - plan thumbnail

About this Plan

Witch MkI. Wakefield rubber competition model.

Quote: "A 45-inch span Wakefield model. Witch MkI, by George Woolls

THE 'Witch' was developed from a peg-legged parasol slab-sider built in 1945. This prototype was slowly and laboriously modified into a more or less normal shoulder-wing streamline slab-sider, which, although weighing around eleven ounces, had quite a good performance. This latter model and the knowledge and experience gained while experimenting with it, were incorporated in Witch.

The construction may seem a little unorthodox in many respects, and some Wakefield builders may criticise it as being rather too solid, but the fact that the original Witch weighs nine and a quarter ounces ready to fly, is compensated for by strength and non-warping flying surfaces. 'Witch 1' flew away on half turns, immediately before entering the Gutteridge Trophy Contest and has flown consistently well ever since. Throughout the 1949 Contest Season the flights have averaged over three minutes, placing nineteenth in the Flight Cup, eleventh in the Gutteridge, and coming 18th in the Wakefield Trials.

To those who intend building this design, the designer directs the wish that you should construct it exactly as per the plan, test fly it in that form and give it a fair chance, before making those modifications which, you are quite sure, would improve it one hundred percent!

Construction: As this will be sufficiently clear from the plan, only a few guides will be given here.

The Wing Box is built first, making it rather wider than necessary, so that it can be trimmed to exact length after assembly.

Templates for the sides of the box should be cut from thin, stiff card. The hardest available balsa should be used for the longerons, and the side plate. placed on the plan first when building the sides. The dethermalizer is built in and is of the flip-up-tail type, operated by rubber bands and a fuse.

The wing section is NACA 6412 and the tip dihedral is 4-1/2 inches. The prop driving clutch shown in the drawing is perfectly satisfactory and should be a tight screw fit on the shaft. The airscrew used and given on the plan has performed well; it was carved from hard balsa with plywood facings either side of the hub and 1/16th birch binding around the blades to strengthen them."

Witch, Aeromodeller, March 1950.

Direct submission to Outerzone.

Supplementary file notes

Article pages, thanks to RFJ.


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

Witch MkI (oz10756) by George Woolls 1950 - model pic

  • (oz10756)
    Witch MkI
    by George Woolls
    from Aeromodeller
    March 1950 
    45in span
    Rubber F/F
    clean :)
    all formers complete :)
    got article :)
  • Submitted: 18/12/2018
    Filesize: 1236KB
    Format: • PDFbitmap
    Credit*: Circlip, RFJ
    Downloads: 444

Witch MkI (oz10756) by George Woolls 1950 - pic 003.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):


* 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, 2011-2024.

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.