Paul and Ralph Bradley Model Airplane Hangout
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J4F by Hank Sperzel


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The J4F (Just For Fun) is a easy to build sport Free Flight model. While a bit different in configuration from other sport Free Flight models, it delivers good performance for a lot of fun relaxed flying.


Presented are the build plan and an assembly guide.

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Files to Download

J4F Build Plan.pdf
J4F Assembly Guide.pdf

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