Full Size Printed Plan Free fight SUPERMARINE 508 .09-.14 Ducted Fan


Full Size Printed Plan & Building Notes

No materials. Plan only

Vintage Plan from the 50s


This big ducted fan version of a famous jet fighter flew out of sight on its first flight after two minutes 15 seconds.

FULL SIZE Printed Plan on a 38” x 24” SHEET

Three Pages of building notes and photos

Free fight

Wingspan 28”

Engine .09-.14 Ducted Fan


  After reading through Tom Purcell's account of his ducted­fan experiments (October '51 M.A.N.), it was only a question of time before we too succumbed to the lure of a glo-motor powered jet scale. Finally, we settled for a replica of the unconventional Vickers Supermarine 508-a big twin-Avon powered shipboard fighter. Features of this aircraft which particularly attracted us were simple unswept wings, buttefly tail and, best of all, large intakes and outlets on each side of fuselage.

  We abandoned the idea of an exact scale (oval-section) fuselage, as duct construction complications seemed undesirable for a magazine feature. So instead, we made the main fuselage circular and profiled nose and tail.

  By using P. E. Norman's half-shell method of planked monocoque construction, we were able to install a much 'larger fan than would have otherwise been possible. The final result is a fast flying model that differs little in appearance from the full size machine once it becomes airborne. Our own model flew out of sight on its first flight of 2 min. 15 sec. and performance far exceeds our early expectations. We found that the .099 Cub supplies ample power for this 15 1/2 ounce model, but there is plenty of room for the larger .14 Cub, with which really spectacular results should be obtained.

Construction is not difficult, but you'll get along much faster if you follow the same building sequence as detailed in these notes.


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