Specialist (oz3407)


Specialist (oz3407) by Joe Bilgri from Flying Models 1958 - plan thumbnail

About this Plan

Specialist. Unlimited rubber contest model.

Quote: "Joe's hot climbing, high performing rubber models have been the talk of many Nats. Here's his latest which you can build for local model meets. The Speecialist, by Joe Bilgri.

Under the present rules the Unlimited Rubber-powered model is truly a model flyers' dream for there is no restriction to size, weight or power. In fact the rules, are so liberal that the designer has to be careful to prevent making a model which is too hard to adjust, a real light ship with its associated problems, or a complicated gear ship. He might even be tempted to build something along the lines of old-style rubber ships used for Wakefield a few years ago which were not only difficult to adjust but also blew out of sight quickly in windy weather.

The 'Specialist' was designed for simple construction with ease of flight adjustment. It has proved to be an excellent contest model for it is actually a more powerful version of our 1956 National Model Airplane Championships winner. The four ounces of rubber which this ship uses for power, when fully wound, lets you know that you have an honest-to-goodness rub-ber ship and not a powered glider such as many of today's Wakefield ships. Why do we call it the 'Specialist?' We call it that because its specialty is a high climb into the thermal-hooking territory which leads to winning contests.

Everyone has their pet parts and prefers to start construction at a different point. We prefer to build wings so we start there first. If your choice is different, pick it out from the following paragraphs.

Wing: A rib template should be made first. Use plywood or aluminum for this and make it accurate for uniformity of ribs..."

Quote: "From Flying Models Feb 1958. Should be self-explanatory, yes, the fuselage is strong enough with carefully chosen balsa, but make sure the noseblock/propshaft assembly is up to that much rubber. The article calls for 16 strands of 1/4in by 36in!"

Direct submission to Outerzone.

Update 30/01/2017: added article, thanks to RFJ.

Supplementary file notes



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

Specialist (oz3407) by Joe Bilgri from Flying Models 1958 - model pic

  • (oz3407)
    by Joe Bilgri
    from Flying Models
    February 1958 
    48in span
    Rubber F/F
    all formers complete :)
    got article :)
  • Submitted: 26/09/2012
    Filesize: 133KB
    Format: • PDFbitmap
    Credit*: rayfairfield

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.