Knife Edge (oz9129)
About this Plan
Knife Edge. Radio control aerobatic model, for .61 engines and sub-min gear.
Quote: "KNIFE-EDGE draws a lot of ideas together and adds a few of its own. It's a 'trendy' model with the slim, deep fuselage and pleasantly tapered wing, now becoming so popular. I didn't go completely Continental, in that I still prefer inset ailerons. One wing was built with strip ailerons with quite good results, but I wasn't quite happy with the roll rate, or response. The natural evolution of the model is to have a retracting u/c on all three wheels. This has been designed into the basic shape of the fuselage and wing. Hence the deep parallel nose, where there's room to tuck a wheel under the tank, and a tapered-depth wing, nice and deep in the centre to take the wheels. I like a side-winder engine mounted at the top of the bulkhead. This leaves room underneath for your nose wheel, mount and cables, and helps keep the silencer within the fuselage line.
Knife-Edge is an out-and-out competition model, which is very quick to build (and re-build). It's very cheap too, so you can afford to build two at once, without ruining the piggy-bank.
It's a dream to fly, with no bad habits at all - yes, despite a tapered wing. I've really put Knife-Edge to the limit of its capabilities for the sake of this article, to see if it would stall out of the sky or fold that seemingly fragile wing. I've been really cruel, and it still comes back for more. I've flown from rough fields and hard tarmac, the u/c and mountings can take the lot... Schedule-wise, it's the smoothest and yet most responsive model I've ever flown. Vertical climbs and rolls are effortless, stall turns really positive and perfect hesitation rolls are limited only by your own skill..."
Knife Edge, Radio Modeller, May 1970.
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
-
(oz9129)
Knife Edge
by A Morrison
from Radio Modeller
May 1970
54in span
IC R/C LowWing
clean :)
all formers complete :)
got article :) -
Submitted: 23/08/2017
Filesize: 612KB
Format: • PDFbitmap
Credit*: Circlip, RFJ
Downloads: 544
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
- Knife Edge (oz9129)
- Plan File Filesize: 612KB Filename: Knife_Edge_RC_oz9129.pdf
- Supplement Filesize: 1095KB Filename: Knife_Edge_RC_oz9129_article.pdf
- help with downloads
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, 2011-2024.
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.