Thyrte

 

Thyrte - plan thumbnail image

Thyrte - completed model photo

Thyrte  
by RI Godden
from Model Aircraft
June 1961 
56in span
Tags: Glider F/F
all formers complete :)
got article :)


Submitted to Outerzone: 28/10/2018
Outerzone planID: oz10597 | Filesize: 441KB | Format: • PDFbitmap | Credit*: Circlip, RFJ

   

About this Plan

Thyrte. A/1 competition glider.

Quote: "DESIGNED during the winter of 1959, Thyrte embodies the trends of the leading '58 and '59 A/2s. Because of this, the model exhibits a slight similarity to the Babic machines, while being an attempt at a high performance A/1, it is not recommended for beginners.

The 13:1 aspect ratio used is the maximum thought possible, consistent with a reasonable chord wing and sufficient rigidity, while tongue and box wing fixing is used for 'cleanness' and because of its previous successful use on slope soarers. Inset wing roots are employed to prevent variation of indi-vidual wing incidence at higher speeds, and the dihedral and tailplane area (19 percent) are the minimum thought practicable for an A/1 used in contest work in this country. The undercambered tailplane section and Benedek type wing section also follow '59 A/2 tendencies.

The actual construction is quite straightforward and no difficulty should be found by experienced modellers. Accuracy is, however, essential and ideally should be twice that of an A/2. No difficulty should be experienced with the weight, providing the tailplane is kept light (0.17 oz on original), the all-up weight being 7.75 oz. The small amount of wood used is far from costly and careful selection is essential.

Construction. Wings: Cut out 28 ribs from medium 3/32 in and build complete panels, using leading edge and trailing edge, leaving out the rib at each dihedral break. Fit 1/16 in sheet tips and add mainspar. When dry, sand leading edge, then cover with medium 1/32 in sheet. While wing is still pinned down, fit the 1/16 in sq diagonals between mainspar and trailing edge. Allow wing to 'settle' for 48 hours before proceeding... "

Thyrte, Model Aircraft, July 1961.

Direct submission to Outerzone.

Supplementary files

Article pages, thanks to RFJ.

Corrections?

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

 

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, 2011-2018.

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.