Arrowhead (oz7855)

 

Arrowhead - plan thumbnail image

About this Plan

Arrowhead - Control line flying wing model. Pusher design.

Quote: "TH E general opinion of control-line flying wings is that they are a novelty and cannot compare in performance to conventional types. Most model builders expect the flight pattern - to be erratic, with numerous longitudinal oscillations. Nothing could be further from the truth. A correctly designed flying wing is easy to fly and is exceptionally stable in the air. In fact, the design shown here is recommended for beginners because it is almost impossible to ground loop, and takes off and lands almost by itself.

The story of the development of this design began aboard an aircraft carrier during the Pacific war. Balsa was hacked from a discarded life raft on Samar in the Philippines, and the job was built in spare time between operations in the Philippines and around Japan. The main problem in the design was deciding between the tractor and pusher arrangement. In favor of the tractor was the simplicity of controls and the ease of keeping the weight forward, in favor of the pusher was elimination of prop wash over the wing and the placement of the motor away from the receiving end of the model.

The deciding factor between the two was the fact that the sweepback necessary in the pusher design to bring the CG forward of the CL, a requirement of stability - added to the longitudinal stability, the main bugaboo in control-line flying wings.

The powerful Air-o Mighty Midget was selected for a powerplant because it has rings and is less sensitive to overheating on the ground. Most motors tend to overheat on the ground as puchers and so the job should be launched as soon as possible after the motor is started..."

Hi Mary/Steve, Here is Henry Cole's Arrowhead from Air Trails magazine issue 10-47.

Direct submission to Outerzone.

Supplementary file notes

Article pages, text and pics.

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

Arrowhead - completed model photo

Datafile:
  • (oz7855)
    Arrowhead
    by Henry Cole
    from Air Trails
    October 1947 
    40in span
    Tags: IC C/L Pusher
    all formers complete :)
    got article :)
  • Submitted: 01/07/2016
    Filesize: 676KB
    Format: • PDFbitmap
    Credit*: theshadow

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):
 

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.