Airspeed Markings
Markings in Knots (1 kt = 1.150779 mph)
RV-4 RV-6/6A RV-7/7A RV-8/8A RV-9/9A RV-10
Bottom of White Arc (approximate indicated stall speed with full flaps) 47 48 50 50 43 52
Top of White Arc (maximum speed with full flaps) 87 87 87 87 78 87
Bottom of Green Arc (approximate indicated stall speed without flaps) 50 51 56 56 49 61
Blue Line (Maneuvering Speed.  Maximum speed at which full control can be applied.  Speed at which full elevator control would impose loads exceeding limits) 116 116 123 123 103 125
Yellow Arc (caution range, to be flown only in calm or light turbulence) 156-182 156-182 168-200 168-200 156-165 156-200
Red Line (never exceed speed) 182 182 200 200 182 200



Markings in MPH
RV-4 RV-6/6A RV-7/7A RV-8/8A RV-9/9A RV-10
Bottom of White Arc (approximate indicated stall speed with full flaps) 54 55 58 58 49 60
Top of White Arc (maximum speed with full flaps) 100 100 100 100 90 100
Bottom of Green Arc (approximate indicated stall speed without flaps) 58 59 64 64 56 70
Blue Line (Maneuvering Speed.  Maximum speed at which full control can be applied.  Speed at which full elevator control would impose loads exceeding limits) 134 134 142 142 118 144
Yellow Arc (caution range, to be flown only in calm or light turbulence) 180-210 180-210 193-230 193-230 180-190 180-230
Red Line (never exceed speed) 210 210 230 230 210 230