22" KK Radian

(1 review)

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The KK Radian is a very clever, Ernie Webster designed, small control line stunt model for 0.5 - 0.75cc diesels or glow-plug motors, (plan includes a conversion for Cox .049 radial mounted engine). Has all the features of the big stunt models of the time, with asymmetric wing and coupled flaps and elevators, giving excellent manoeverability.

Construction is very straightforward, with a full set of precision laser-cut parts for accurate building. A really nice, pretty little model! VIDEO Interesting clip showing the Radian from the flyer's eye view.


This kit is a laser-cut replica of the original KK Radian. Construction of the model from this kit uses the traditional method of "stick and tissue", that consists of a built up balsa wood skeleton (framework), covered with a tissue skin. The balsa frameworks are built over a plan that is printed at the exact scale of the model, which is in essence a real engineering drawing. This type of traditional building technique and flying requires a degree of patience and skill, but is extremely rewarding.


Full-sized plotted plans and instructions
13 sheets of balsa wood and ply with precision laser-cut parts
Engine bearers and balsa sheeting
Vacuum-formed canopy
Pair of 1 1/2" streamlined wheels
Piano Wire for undercarriage and lead outs
Bellcrank assembly
Cloth hinge material
Covering Tissue

Please note: The vacuum-formed cowling that was supplied with the original kit is no longer available. We have included a set of laminated balsa parts that, when built up, form a cowl of the correct shape for you to hollow out or use as a mould to make your own plastic cowl.

Model pictured courtesy of Matthew Weinle features covering, motor and and prop not included in the kit

22" (558mm)


  • 4
    Takes me back 50 years

    Posted by John Field on 10th Oct 2019

    Built this model about 6 or 7 times in my youth. It took some doing but I finally mastered the way to reinforce the front (engine mount to cockpit area) I've finished the build and waiting for the weather to improve. Anyway a good model to build. Every thing you need. I love it. [originally posted on our old website 10/02/2018]