q500 fuse shape
08-13-2002, 06:00 PM
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q500 fuse shape
Caution - new guy behind wheel - sillyass question proceeding
Im interested in the hows & whys & opinions of racing fuse shape profiles that exhibit an inward reflex or necking down from the usual airfoil/straight line profile aft of the wing, as viewed from the top, particularly q500's. Is this shape proven to be faster? Did someone do some flow testing once upon a time? Roughly when did this trend start or was it carried over from other racing classes? Are there any disadvantges to the shape like reduced torsional rigidity to the tail?
Im interested in the hows & whys & opinions of racing fuse shape profiles that exhibit an inward reflex or necking down from the usual airfoil/straight line profile aft of the wing, as viewed from the top, particularly q500's. Is this shape proven to be faster? Did someone do some flow testing once upon a time? Roughly when did this trend start or was it carried over from other racing classes? Are there any disadvantges to the shape like reduced torsional rigidity to the tail?
08-13-2002, 09:59 PM
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q500 fuse shape
The pinching down of the fuselage behind the wing made the airframe perform like it had wing fillets, an aerodynamic advantage. True wing fillet are not allowed on Q500 planes. This only works on low wing planes, most high wing planes don't have this feature. I seem to remember the Doddger was one of the first kits to make use of this.
