Airknocker - plan thumbnail image

Airknocker - completed model photo more pics (7)

by Bill Winter
from Flying Models
April 1963 
52in span
Tags: IC R/C
all formers complete :)
got article :)

This plan was found online 24/06/2011 at:
Outerzone planID: oz1293 | Filesize: 471KB | Format: • PDFbitmap | Credit*: 50+AirYears, pilgrim


About this Plan

Airknocker - Aeronca C-3 - Single channel radio control semi-scale model for .09 power, with a wing area of 420 The original was powered with a Fox 10 engine and 8x4 prop.

Quote: - "Scared off by the high powered multi-types? Here's the place to start... out in the pasture with the rest of us... Not a nervous bird, flies slow and easy, lets you get the feel of it, gain confidence..."

Update 09/12/2016: Replaced this plan with a clearer copy, also now scaled up to correct wingspan at 52in, thanks to pilgrim.

Supplementary files

Article pages, text and pics, thanks to GeeW.

Previous scan version.


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User comments

I must admit that when I first saw the Airknocker in the FM magazine back in the early sixties it wasn't love at first sight, in fact I thought "that's ugly". However, over the years it grew on me to the extent that I finally decided to build one in late 2014. Mine is electric powered of course and R/E/T controlled and it is a surprisingly "burly" aeroplane; it has a solid presence in the air, so stable and well behaved that it would make an excellent trainer and I now find the way it looks actually attractive in a chunky sort of way [see more pics 004-006]. The flying surfaces are very easy and straightforward to build, but the fuselage, with its unusual cross section requires more care, in fact mine was a bit of a nightmare! Whilst not one single part of it is anywhere close to an Aeronca C3, the overall "cartoon scale" effect is such that the origins of the design are immediately apparent. Specifications of my model are: Weight 25.5 ounces, wing loading 7.7 ounces/sq. ft. Motor BRC 120/140 watt outrunner. Prop APC 9"x 4.7" Slow Fly, Battery 2s 1300. Full throttle watts 80, maximum watts/pound 51.
Sundancer - 28/03/2016
I have just built from your plan an AIRKNOCKER to use at OT competition here in Sweden. Here are some images of my model [more pics 007-009].
OweCarlson - 03/08/2017
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