Jet Ace (oz9396)


Jet Ace (oz9396) by George Woolls 1958 - plan thumbnail

About this Plan

Jet Ace. Unorthodox Jetex sport model with diamond wing configuration. For Jetex 50 power.

Quote: "The unorthodox wing configuration employed by 'Jet Ace' was dreamed up by British aerodynamicist Norman Hall-Warren way back in 1926. Several advantages are claimed for the layout, the ones most useful model-wise being the high degree of resistance to spinning and the great rigidity imparted by the triangulated wing structure.

The spin-proof characteristic derives from the combination of sweep forward and sweep back, which causes the boundary layer to move outwards along the leading plane, around the tip, and inwards along the rear plane, thus scouring the turbulence away from the large area efficient wing tips.

There is also a pronounced slot effect between front and rear planes at their outer regions. Thus, there are two powerful deterrents to tip-stalling, which is one of the main causes of spin.

The short control surface moment arm about the CG makes the turning radius very small and therefore the airplane recovers very quickly from any upset.

Commence making the model by tracing the fuselage, wing and fin outlines onto sheet balsa..."

Supplementary file notes

Planfile includes article pages.


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Jet Ace (oz9396) by George Woolls 1958 - model pic


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