For R/C Airplane 2Cycle engine
Model#	Dimension of engine					Plopeller size
	[mm]					dia. x pitch
	A	B	C	D	E	[in.]
180X TN	-	-	-	-	UNF3/8-24	16-20 x 12-8
80XF Ring TN	52.0	20.0	43.5	56.0	M7 x 1.0	12-14 x 10-7
61CX TN	43.0	18.0	34.0	52.0	UNF1/4-28	11.5-13 x 8-6
50CX TN	43.0	18.0	34.0	52.0	UNF1/4-28	11-13 x 8-6
SS50 Ring TN	42.5	18.0	33.8	50.0	UNF1/4-28	11-12 x 9-7
SS45 Ring TN	42.5	18.0	33.8	50.0	UNF1/4-28	11-12 x 9-7
SS40BB TN	42.5	18.0	33.8	50.0	UNF1/4-28	10-11 x 9-6
SS40 W/SNV	42.5	18.0	33.8	50.0	UNF1/4-28	10-11 x 9-6
40XZ TN	38.0	15.0	30.4	46.0	UNF1/4-28	10-12 x 7-5
35X TN	38.0	15.0	30.4	46.0	UNF1/4-28	10-11 x 8-6
SS35 Ring TN	37.0	15.0	29.3	43.5	UNF1/4-28	9.5-10 x 7-6
SS30BB TN	37.0	15.0	29.3	43.5	UNF1/4-28	9.5-10 x 7-6
SS30 W/SNV	37.0	15.0	29.3	43.5	UNF1/4-28	9.5-10 x 7-6
SS25 AL-CHRO TN	37.0	15.0	29.3	43.5	UNF1/4-28	9-10 x 7-6
SS25BB TN	37.0	15.0	29.3	43.5	UNF1/4-28	9-10 x 7-6
SS25 AL-CHRO PL	37.0	15.0	29.3	43.5	UNF1/4-28	9-10 x 7-5
SS25 W/SNV	37.0	15.0	29.3	43.5	UNF1/4-28	9-10 x 7-6
20TV W/SNV	34.0	12.3	26.0	38.0	M6 x 1.0	8-9 x 6-5
SS15BB TN	34.0	12.3	26.0	38.0	M6 x 1.0	8-8 x 6-5
SS15	34.0	12.3	26.0	38.0	M6 x 1.0	8-8 x 6-5
15-V TV W/SNV	34.0	12.3	26.0	38.0	M6 x 1.0	8-9 x 6-4
ULTRA11CX TN	34.0	12.3	25.0	34.0	M5 x 0.9	6-8 x 6-4
Quicky09TV W/SNV	34.0	12.3	23.5	32.0	M5 x 0.9	7-8 x 5-3
09-IV TV W/SNV	34.0	12.3	23.5	32.0	M5 x 0.9	7-8 x 5-3