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Model	AIR X	WHI 100	WHI 200	Sky-Stream 3.7	WHI 500 Grid tie	WHI 500
Parameter
rotor dia	46in (1.15m)	7 ft (2.1m)	9 ft(2.7m)	12 ft (3.72m)	15 ft (4.5m)	15 ft (4.5m)
weight	46in (1.15m)	47 lbs (21 kg)	65 lbs	154 lbs(70kg)	155 lbs	155 lbs
_{start speed}	_{8 mph}	_{7 mph}	_{7.5 mph}	_{8 mph}	_{7.5 mph}	_{7.5 mph}
mount	1.5 sched 40 pipe	2.5" sched 40	2.5" sched 40	5" sched. 40-requires tower adaptor, 35-110' guyless tower available	5" sched 40	5" sched 40
voltage	12,24,34 & 48 vdc	12,24,34 & 48 vdc	12,24,34 & 48 vdc	12 v available in 4q of 2006	12,24,34 & 48 vdc	12,24,34 & 48 vdc
shipping dimension/weight	27"x15"x9" 17 lbs	51x20x13 ft	51x20x13 "
rated power	400 watts	900 watts @ 28 mph	1,000 watts at 26 mph	1,000 watts at 26 mph	3,000 watts @ 24 mph-3,200 peak	3,000 watts @ 24 mph-3,200 peak
turbine controller	smart internal regulator with peak power tracking	whisper controller	whisper controller	SouthWest grid feeding inverter, 120/240 VAC 50-60Hz	aurora inverter & wind interface:
body	cast Aluminum (marine is powder coated)	cast aluminum/marine opt avail	cast aluminum/marine opt avail		welded steel power coat	welded steel power coat
blades	3-carbon fiber composite	polypro/carbon glass reinforced	polypro/carbon glass reinforced	3-polypro/carbon glass reinforced	2-polypro/carbon glass reinforced	2-polypro/carbon glass reinforced
over speed control	electronic torque control	side-furling	side-furling	side-furling	side-furling	side-furling
kwhr/month	38kWH @ 12 mpg	100 kWh/mo @12mph	158 kWh/mo @ 12mph	400 kwhr/mo@ 12 mph	500 KWH/mo @ 12 mph	500 KWH/mo @ 12 mph
warranty	3 yr limited	5 year limited	5 year limited		5 year limited	5 year limited
survival wind speed	110 mph	120 mph	120 mph	_{140 mps}	_{120 mph}	_{120 mph}

OPERATING CURVES
AIR LX		WHI 100 & 200

SKY-STREAM 3.7		WHI 500& 500 gridtie