Hatchet (oz8768)

 

Hatchet (oz8768) by Martin Garnett from Radio Modeller 1974 - plan thumbnail

About this Plan

Hatchet. Flying wing thermal soarer for 3 function (2 plus auxiliary) R/C systems. Wingspan 97 in. Features split-rudder air brakes.

Quote: "This tailless model originated from a desire to build something different, as a tow-line glider for radio control. I also had an eye on the multi-task rules, and I think that flying wings may have something to offer in this area. Since it was to be an experimental model, I decided to use a 'conventional' wing section, combined with sweepback, as this seemed beneficial when the longitudinal stability is provided by the elevens at the tips. To speed up construction, a nacelle was built to take some of the radio equipment, although it was originally envisaged that all the gear be housed within the wing itself. The fin is integral and the split rudder airbrake, which I devised, is very effective yet extremely simple in construction.

CONSTRUCTION: Nacelle: Construction overall is very normal and quite uncomplicated. As may be seen from the plan, the nacelle is a basic box structure with some block at the nose end to help blend the lines together. It is worthwhile to check for free operation of the airbrake cranks through the nacelle sides before sheeting the rear top part, as this will save a certain amount of fiddling at a later stage in proceedings. The original nacelle was covered in heavyweight tissue, doped on.

Wing: Although basically very easy to build, some extra care is required when joining the two centre-section halves. My method is to make up the main spar assembly first, so that the tongue and box assembly is built in, and the two spars spaced with a few webs. The lower spar is then attached to the lower leading edge sheeting and this assembly now positioned over the plan.

Ribs are added next, gluing them to the leading edge sheet and trailing edge sheet (which must be packed up because of the undercamber), then the trailing edge may be completed. The leading edge is next added, followed by the top sheeting. Capstrips and spar webs complete the basic wing structure..."

Hatchet, Radio Modeller, November 1974.

Direct submission to Outerzone.

Supplementary file notes

Article pages, thanks to RFJ.

Corrections?

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

Hatchet (oz8768) by Martin Garnett from Radio Modeller 1974 - model pic

Datafile:
  • (oz8768)
    Hatchet
    by Martin Garnett
    from Radio Modeller
    November 1974 
    97in span
    Glider R/C
    all formers complete :)
    got article :)
  • Submitted: 22/05/2017
    Filesize: 475KB
    Format: • PDFbitmap
    Credit*: Circlip, RFJ

Hatchet (oz8768) by Martin Garnett from Radio Modeller 1974 - pic 003.jpg
003.jpg
Hatchet (oz8768) by Martin Garnett from Radio Modeller 1974 - pic 004.jpg
004.jpg
Hatchet (oz8768) by Martin Garnett from Radio Modeller 1974 - pic 005.jpg
005.jpg
Hatchet (oz8768) by Martin Garnett from Radio Modeller 1974 - pic 006.jpg
006.jpg

Do you have a photo you'd like to submit for this page? Then email admin@outerzone.co.uk

User comments

I built Hatchet in 2012, and it is still flying well. I fly from a flat field, so I added a motor! It goes well.
Jim S - 16/06/2020
Hi, Please see attached an image of Hatchet that I built in about 2012 [main pic]. It is still flying well. I changed the internal wing construction and added a motor, but it was a good design.
Jim S - 17/06/2020
Add a comment

 

 
 

Download File(s):
 

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, 2011-2020.

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.