THIS for printed plans
Not a KIT or MODEL
REPRODUCED VINTAGE PLAN FROM 1963
A well executed Stunt Craft for .35 mills. NACA 64-021 airfoil, an elliptical planform.
Graceful in line, contest bred, full span flaps.
Full size printed plans on two sheets 40” x 28”
Nine page article with building notes
Control Line Stunter
By Jean G. Pailet
The "Skylark" represents the second in a series of original stunt models designed to achieve improved stunt-ability without sacrificing stability or appearance. It is identical to its predecessor, the "Wingmaster," in its aerodynamic configuration, although radically different in outward appearance. The "Wingmaster" was designed to test some ideas on airfoils, moments, and such; the "Skylark" was intended to utilize the results of those tests in a more aesthetically pleasing airframe. Credit for the end-product must be shared with other members of the Aerodynamics Section of Grumman Aircraft who contributed suggestions and criticisms throughout the design, construction, and flight-test stages of the design.
Although outwardly of conventional appearance by current stunt-model standards, the "Skylark" incorporates two fairly unique features. The first of these is the NACA 64-021 airfoil (slightly modified) which was chosen because of its gradual stall characteristics, and the other is our practice of keeping both wing and tail chord lines on the thrust line in order to minimize flying characteristic variance between upright and inverted flight manoeuvres.
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