Switchback (oz8677)


Switchback (oz8677) by Brian Peckham from Radio Modeller 1978 - plan thumbnail

About this Plan

Switchback. Radio control sports biplane model.

Quote: "There is something about a biplane that I cannot resist and, having built and flown a number of bipes, I felt they all lacked that snap that I was looking for - especially after watching the Rothman's Pitts Specials on several occasions. I was determined to reproduce that sort of performance in a model and, to achieve this, a clean design with the correct incidences, wing sections and loading was needed. The previous models I had flown had had ailerons on the lower wings only, and it therefore seemed essential to have themi on both upper and lower wings, to achieve the sort of roll rate I had in mind. Switchback has this feature - and the roll rate is very rapid.
Biplanes often have a tendency to 'zoom' or balloon and, to kill this I have used negative incidence on the upper wing and positive on the tailplane, with the lower wing - and the engine - at zero. Probably most important of all however, the CG is in the optimum position.
The general configuration of Switchback is a mixture of several sporting biplanes, with the rear deck and side stringers added to the fuselage to impart that slight touch of individuality. If you've read this far, you're probably on the way to being hooked, so let's get down to the nitty gritty..."

Switchback, Radio Modeller, April 1978.

Note this is a low resolution plan.

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

Switchback (oz8677) by Brian Peckham from Radio Modeller 1978 - model pic

  • (oz8677)
    by Brian Peckham
    from Radio Modeller
    April 1978 
    50in span
    IC R/C Biplane
    all formers complete :)
    got article :)
  • Submitted: 29/04/2017
    Filesize: 849KB
    Format: • PDFbitmap
    Credit*: Circlip

Switchback (oz8677) by Brian Peckham from Radio Modeller 1978 - pic 003.jpg
Switchback (oz8677) by Brian Peckham from Radio Modeller 1978 - pic 004.jpg
Switchback (oz8677) by Brian Peckham from Radio Modeller 1978 - pic 005.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, 2011-2020.

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.