Model	INPUT RPM	GEAR RATIO	FAN RPM	Service HP Rating (2.0 Service Factor)
A20	1750	2.71	646	35
	1750	3.27	535	35
	1750	3.78	463	30
	1750	4.11	426	25
	1750	4.89	358	20
A22	1750	3.45	646	35
	1750	4.10	535	35
	1750	4.56	463	30
	1750	5.11	426	25
	1750	5.55	358	20
	1750	5.12	358	20
	1750	4.89	358	20
	1750	4.89	358	20
A27	1750	5.77	303	80
	1750	7.71	227	75
	1750	8.66	202	60
	1750	9.83	178	40