MT Propeller Aero Composites Whirl Wind Whirl Wind Whirl Wind
Model MTV-12-B/183-59 n/a 150 series 200C 200RV
Blades 3 2 3 2 2
Diameter 72" 72" 69" 77" 72"
Weight w/spinner 44 lbs est. 49 lbs 29 lbs 47 lbs 41 lbs
Status Certified Experimental only Experimental only Experimental only Experimental only
TBO 72 months or 1,800 hours not established Estimated at 1,000 hrs or 5 years. May be lengthened in the future based on ongoing evaluation of field results. Estimated at 1,000 hrs or 5 years. May be lengthened in the future based on ongoing evaluation of field results. Estimated at 1,000 hrs or 5 years. May be lengthened in the future based on ongoing evaluation of field results.
Notes New design with scimitar blade shape. Thinner and more efficient than previous designs. New material on back to prevent blade erosion. Uses McCauley hub, or soon to be introduced improved clone. Scimitar blade shape, pitch profile optimized for 200 mph+ airframes. Introduced specifically for the fast kitplane market: RVs, Lancairs, Glasairs. Beta period was a full two years, now in production. To be replaced soon by the 151 with the new Opti-Q airfoil. McCauley 220 hub, 100% carbon fiber composite blades, designed for aerobatic use, can be used with or without counterweights. McCauley 215 hub, 100% carbon fiber composite blades with Opti-Q airfoil, designed specifically for RV series aircraft.
Restrictions When used with a non-counterweighted crank O-360s a restricted range from 2,050-2,300 rpm should be observed. Max rpm 2,700, no published restricted operating ranges. Whirl Wind "recommends" limiting operation in the 2,050-2,300 rpm range. Max rpm 2,700, and presently at least, no use with high-compression pistons or electronic ignition with non-counterweighted cranks. Max rpm 2,700, no published restricted operating ranges. Max rpm 2,700, no published restricted operating ranges.
Price $8,900 including finished spinner, special price for RV builders through Van's Aircraft $7,635 $9,500 without spinner $6,900 including fully finished spinner assembly $8,625 with counterweights, $8,400 w/o, includes fully finished spinner assembly $7,500, includes fully finished spinner assembly
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Web site mt-propeller.com aerocomposites.com whirlwindpropellers.com whirlwindpropellers.com whirlwindpropellers.com