Model No.	D	D1	E	A	B	C
FF-10	12/14/15	8	10	7.6	0.9	7.9
FF-12	14/15/16	10	11	9.6	1.15	9.15
FF-15	18/20	15	13	14.3	1.15	10.15
FF-17	20/25	17	16	16.2	1.15	13.15
FF-20	25/28/30	20	16	19	1.35	13.35
FF-25	30/32/36	25	20	23.9	1.35	16.35
FF-30	36/40	30	21	18.6	1.75	17.75
FF-35	40/45	35	22	33	1.75	18.75
FF-40	50	40	23	38	1.95	19.95