Headmaster Sport 40 oz5877

 

Headmaster Sport 40 - plan thumbnail image

Headmaster Sport 40 - completed model photo

This plan was found online 06/09/2014 at: http://www.rcgroups.com/forums/showpost.php?p=29343336&postcount=135
Outerzone planID: oz5877 | Filesize: 567KB | Format: • PDFbitmap | Credit*: hlsat

   

About this Plan

Headmaster Sport 40 - RC Sport Trainer model.

Quote: "If you have flown any R/C airplane successfully and want to step up to high performance and sleek appearance, the Headmaster Sport 40 is the one you have been looking for. By Ken Willard.

Fourteen years ago, after considerable needling from my friends to the effect that all my designs were for small engines like the .020, .049, and the .09 or .10, I decided to design a sport model for engines in the .15 to .29 range. So I did. Well, it wasn't really all that much of a design change, except for size. The Schoolboy (oz1030), the Schoolmaster (oz7534), and the Headmaster (oz1917) all looked similar: it was just that they were scaled up from basically the same drawing. And there's an excellent reason for that, commonly expressed as: You can't fool Mother Nature. The aerodynamic force set-up is so dependable, reliable, and forgiving of minor deviations in building that the airplane will fly even when badly out of alignment, which occurs more often than you think as beginners keep coming, into the sport of R/C. Yet, with the airplane built well and true in accordance with the plans, it is fully acrobatic in the hands of a resonably competent sport flier.

The Headmaster plans were published in RCM in September 1967 and were very popular.

In the past couple of years or so, the popularity of larger models has increased markedly. There are several reasons for that. They are easier to fly, and the larger engines, in the .40 to .60 range, have been refined to the point where they have excellent speed control from low idle to full power, even though the needle valve settings may not be precisely at the maximum performance point. And there are literally thousands of you sport fliers who have a good .40 or .60 that you'd Iike to put into a sport model and have fun. But you still don't want a pattern bomb: you'd like to have a model that looks like a Stand-Off Scale .job, can perform like a trainer if you want to teach a friend to fly, yet will do the whole acrobatic list of maneuvers when you're in the mood.

And that is the basic idea behind the. design of the Headmaster Sport 40. It's designed for you - the sport flier, And for those of you who want to really hot dog around, it will take a .60 up front and give you some really wild maneuvers. That is, of course, if you can do them.

You'll be happy to note that the construction of the Headmaster Sport 40 is almost totally conventional. Yet, with just a couple of small changes, you can get that Stand-Off Scale appearance that you want. In fact, if you are a sport flier and builder, you probably won't even have to read the rest of this article; just get a set of the plans and build it. Everything called out on the plans is available at your local hobby shop; and if you don't have a local hobby shop, you can order the material from one of RCM's advertisers. So let's start with the fuselage.

Fuselage: This is basically a simple slab-sider, made from 1/8 balsa sheet, But note that the longerons are 3/8 triangular stock. This allows you to put the box together, then carve the corners into a rounded shape to give the illusion of a modern molded fuselage. Look at the drawing of the cross section at former F-1 to see how that is done. You can take it from there, and get that rounded appearance all the way back to the tail..."

Supplementary files

Article pages, text and pics.

Corrections?

Did we get something wrong with this plan? That happens sometimes. Help us make a correction

 

oz5877 datafile

Headmaster Sport 40  
by Ken Willard
from RCMplans (ref:802)
June 1980 
59in span
Tags: IC R/C Cabin Trainer
all formers complete :)
got article :)

 

003.jpg
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? Click here to Add a comment

 

 

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, 2011-2019.

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.