Boo Ray (oz14185)


Boo Ray (oz14185) by Dave Clarkson, John Daly 1972 - plan thumbnail

About this Plan

Boo Ray. Control line profile Goodyear Class Team Racer model. For 2.5 - 3.5 cc engines.

Note the Boo Ray and Little Gem (oz4434) designs both appeared in the same article.

Quote: "The Cassutt 'BooRay'. The full-size BooRay is a Jim Cassutt design, built and raced by Marion Baker, in whose hands it has proved to be the fastest Cassutt built to date. The builder removed many of the curves from the basic design which is why this particular Cassutt has been selected for control line racing. The basic three-views used to build this model were found in the Racing Planes Annual for the Cassutt IIM and these have been modified to BooRay after studying the numerous photographs of this aircraft in this publication.

Three replicas of this model have been built by fellow club members and all proved to fly very sweetly off the club field, which consists of short grass, when a conventional mono-leg undercarriage was used (as shown on the Little Gem plan). However, future development of this very successful model proved that pit-stops could be improved by fitting a rearward wheel and prop skid, and this arrangement is shown on the plan.

When this undercarriage lay-out is used, it has been found that cutting the motor (via the fuel shut-off) three-quarters of a lap from the pit man, the model can be 'greased-in' half a lap out, then an application of full down elevator quarter of a lap out moves the model firmly on to the out-board tip and nose skid. This slows the model considerably as well as stabilising it on the ground so that it arrives at the pitman firmly and at a comfortable speed - no danger of taking his hand away! However, the designer stresses that while take-offs and landings are trouble-free in calm weather, an experienced pilot could be a considerable asset under inclement conditions. If you lack this confidence. then you would be better advised to fit the Little Gem's forward-raked unit..."

Direct submission to Outerzone.

Note for the complete article, see Little Gem (oz4434).


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

Boo Ray (oz14185) by Dave Clarkson, John Daly 1972 - model pic

  • (oz14185)
    Boo Ray
    by Dave Clarkson, John Daly
    from Aeromodeller
    February 1972 
    23in span
    IC C/L
    clean :)
    all formers complete :)
  • Submitted: 24/10/2022
    Filesize: 468KB
    Format: • PDFbitmap
    Credit*: theshadow
    Downloads: 303

Do you have a photo you'd like to submit for this page? Then email

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.