Mad Thrasher (oz5128)

 

Mad Thrasher (oz5128) by Ivan Munninghoff from RCMplans 1970 - plan thumbnail

About this Plan

Mad Thrasher. Radio control sport model.

Hi Steve - Here is Ivan Munninghoff's Mad Thrasher from RCM magazine issue 07-70.

Quote: ".09 to .15 powered vintage-style sport aircraft for Galoping Ghost or small digital proportional systems, an excellent aircraft for the sport and Sunday flier as well as for flying in small, confined fields.

Several years ago, when Galloping Ghost was considerably more popular than it is now, RCM's Fearless Leader published a small scale-like German GG design of his called the Wolfmeister LR-3 (oz6209). It was a cute little .09 sized ship with typically German scalloped trailing edges, WWI markings, and somewhat of an Eindekker look about it. When one of the other members of our club built one, I decided that I needed a plane in the same category as a flying companion for the Wolfmeister. A British antagonist was in order!

The final design combined the features that I liked best of several Allied WWI planes with the simplest possible construction techniques. The result was a British tail-flapper - hence: the Mad Thrasher. However, the dream of aerial combat was dashed prior to the Mad Thrasher's completion when the Gelman flew into a goal post and was wiped out. So now the Mad Thrasher flies alone - victorious by default. This design, by the way, won first place in the Model Aircraft Sport Design Competition held by RCM a few years ago.

When really small reliable digital proportional came into vogue not long ago, the Mad Thrasher became the test bed for my new Royal Classic. Even the relatively large PS-3 serves fitted into the small fuselage. The improved controllability provided by the digital radio greatly increased the performance of the Thrasher. It is now a pleasant change of pace from flying the hot pattern ships.

Let's put one together. Actually, the Mad Thrasher is a very simple plane to build. The fuselige is the standard box-type that is dressed up a bit by the metal cowling and a built-up turtle deck. Start construction by cutting out all the required parts for the fuselage. As you can sue, there aren't many. Start with the fuselage sides, laying them on a flat surface and putting in the 3/32 balsa doublers (cross-grained), the plywood reinforcing doubler, and the tail-end vertical bracing. (Don't forget to make one left and one right side!)

While these arc drying, put a coat of Tilebond glue on the edges of all three bulkheads and also along the sides of the fuselage where these formers will be attached. Sew the landing gear to the plywood former with copper wire. When everything is dry. reglue the formers to one half of the fuselage..."

Direct submission to Outerzone.

Supplementary file notes

Article pages, incomplete. Many thanks to hlsat for working on the article pages scan.

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

Mad Thrasher (oz5128) by Ivan Munninghoff from RCMplans 1970 - model pic

Datafile:
  • (oz5128)
    Mad Thrasher
    by Ivan Munninghoff
    from RCMplans (ref:435)
    July 1970 
    40in span
    IC R/C
    all formers complete :)
    got article :)
  • Submitted: 09/12/2013
    Filesize: 655KB
    Format: • PDFbitmap
    Credit*: theshadow

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):
  • Mad Thrasher (oz5128)
  • Plan File Filesize: 655KB Filename: Mad_Thrasher-RCM-07-70_oz5128.pdf
  • Supplement Filesize: 229KB Filename: Mad_Thrasher-RCM-07-70_oz5128_article.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.

 

Terms of Use

© Outerzone, 2011-2021.

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.