Textron Lycoming O-235-C - Page 90

LYCOMING OPERATOR’S MANUAL SECTION 8
O-235 AND O-290 SERIES TABLES
CENTIGRADE-FAHRENHEIT CONVERSION TABLE
Example: To convert 20°C to Fahrenheit, find 20 in the center column headed (F-C); then read 68.0°F in
the column (F) to the right. To convert 20°F to Centigrade; find 20 in the center column and read –6.67°C in
the (C) column to the left.
C F-C F C F-C F
-56.7
-51.1
-45.6
-40.0
-34.0
-28.9
-23.3
-17.8
-12.22
-6.67
1.11
4.44
10.00
15.56
21.11
26.67
32.22
37.78
43.33
48.89
54.44
50.00
65.56
71.00
76.67
82.22
87.78
93.33
98.89
-70
-60
-50
-40
-30
-20
-10
0
10
20
30
40
50
60
70
80
90
100
110
120
130
140
150
160
170
180
190
200
210
-94.0
-76.0
-58.0
-40.0
-22.0
-4.0
14.0
32.0
50.0
68.0
86.0
104.0
122.0
140.0
158.0
176.0
194.0
212.0
230.0
248.0
266.0
284.0
302.0
320.0
338.0
356.0
374.0
392.0
410.0
104.44
110.00
115.56
121.11
126.67
132.22
137.78
143.33
148.89
154.44
160.00
165.56
171.11
176.67
182.22
187.78
193.33
198.89
204.44
210.00
215.56
221.11
226.67
232.22
237.78
243.33
248.89
254.44
260.00
220
230
240
250
260
270
280
290
300
310
320
330
340
350
360
370
380
390
400
410
420
430
440
450
460
470
480
490
500
428.0
446.0
464.0
482.0
500.0
518.0
536.0
554.0
572.0
590.0
608.0
626.0
644.0
662.0
680.0
698.0
716.0
734.0
752.0
770.0
788.0
806.0
824.0
842.0
860.0
878.0
896.0
914.0
932.0
8-5