Ronaldson Tippett – Dating Your Engine

Below is a guide of what the last engine number tested in that month was and the amount that was produced that month, followed by a yearly total.

Note: Numbers marked with * denotes the average number for that month.
Green or Black doesn’t denote anything, just makes it easier to distinguish between dates.

First column is the month, second column is the engine number they finished on for that month and the third column is the amount of engines made that month with a total at the bottom of the table.

1911 Total
January 595
February 613 18
March 636 23
April 649 13
May 664 15
June 689 25
July 709 20
August 720 11
September 737 17
October 773 36
November 790 17
December 806 16
Year Total 211

 

1912 Total
January 817 11
February 842 25
March 860 18
April 869 9
May 891 22
June 902 11
July 914 12
August 919 5
September 950 31
October 965 15
November 980 15
December 995 15
Year Total 189

 

1913 Total
January 1010* 15
February 1025* 15
March 1040* 15
April 1055* 15
May 1070* 15
June 1084 14
July 1101 17
August 1120 19
September 1141 21
October 1160 19
November 1180 20
December 1197 17
Year Total 202

 

1914 Total
January 1206 9
February 1211 5
March 1241 30
April 1253 12
May 1275 22
June 1288 13
July 1301 13
August 1321 20
September 1333* 12
October 1344 11
November 1354* 10
December 1364 10
Year Total 167

 

1915 Total
January 1378 14
February 1388* 10
March 1397 9
April 1409 12
May 1414 5
June 1430 16
July 1441 11
August 1453 12
September 1465 12
October 1477 12
November 1496 19
December 1512 16
Year Total 148

 

1916 Total
January 1521 9
February 1534 13
March 1551 17
April 1566 15
May 1579 13
June 1596 17
July 1614 18
August 1629 15
September 1648 19
October 1664 16
November 1684 20
December 1697 13
Year Total 185

 

1917 Total
January 1716 19
February 1729 13
March 1754 25
April 1764 10
May 1788 24
June 1808 20
July 1828 20
August 1845 17
September 1864 19
October 1885 21
November 1902 17
December 1918 16
Year Total 221
1918 Total
January 1930 12
February 1946 16
March 1967 21
April 1985 18
May 2007 22
June 2016 9
July 2042 26
August 2070 28
September 2098 28
October 2118 20
November 2159 41
December 2177 18
Year Total 259
1919 Total
January 2208 31
February 2242 34
March 2276 34
April 2310 34
May 2344 34
June 2378 34
July 2412 34
August 2446 34
September 2480 34
October 2514 34
November 2548 34
December 2582 34
Year Total 405
1920 Total
January 2650 68
February 2684 34
March 2719 35
April 2753 34
May 2820 67
June 2888 68
July 2922 34
August 3024 102
September 3093 69
October 3194 101
November 3229 35
December 3263 34
Year Total 681
1921 Total
January 3331 68
February 3400 69
March 3435 35
April 3502 67
May 3570 68
June 3604 34
July 3638 34
August 3672 34
September 3740 68
October 3775 35
November 3809 34
December 3876 67
Year Total 613
1922 Total
January 3910 34
February 3944 34
March 3978 34
April 4012 34
May 4046 34
June 4080 34
July 4114 34
August 4180 66
September 4214 34
October 4282 68
November 4350 68
December 4384 34
Year Total 508
1923 Total
January 4418 34
February 4486 68
March 4554 68
April 4588 34
May 4656 68
June 4725 69
July 4760 35
August 4795 35
September 4829 34
October 4863 34
November 4897 34
December 4933 36
Year Total 549
1924 Total
January 4967 34
February 5001 34
March 5035 34
April 5052* 17
May 5069 17
June 5087 18
July 5104 17
August 5121* 17
September 5138 17
October 5172 34
November 5206 34
December 5241 35
Year Total 308
1925 Total
January 5275 34
February 5309 34
March 5343 34
April 5377 34
May 5411 34
June 5440 37
July 5518 70
August 5553 35
September 5599 46
October 5793 194
November 5810* 17
December 5827 17
Year Total 586
1926 Total
January 5862 35
February 5880 18
March 5897 17
April 5960* 63
May 6022 62
June 6056 34
July 6090 34
August 6107* 17
September 6124 17
October 6150 34
November 6192 34
December 6300 100
Year Total 465
1927 Total
January 6332 32
February 6364 32
March 6398 34
April 6432 34
May 6499 67
June 6532 33
July 6565 33
August 6898 333
September 6964 66
October 6997 33
November 7063 66
December 7095 32
Year Total 795
1928 Total
January 7162 67
February 7196 34
March 7229 33
April 7278* 49
May 7327* 49
June 7376* 49
July 7425 49
August 7458 33
September 7491 33
October 7550 67
November 7591 33
December 7624 33
Year Total 529
1929 Total
January 7657 33
February 7690 33
March 7756 66
April 7789 33
May 7854 65
June 7887 33
July 7903* 16
August 7920 17
September 7986 66
October 8019 33
November 8052 33
December 8083 31
Year Total 459
1930 Total
January 8118 35
February 8151 33
March 8178* 27
April 8205* 27
May 8231 26
June 8257 26
July 8283 26
August 8316 33
September 8349 33
October 8358* 9
November 8367* 9
December 8375* 8
Year Total 292
1931 Total
January 8383 8
February 8394* 11
March 8405* 11
April 8416* 11
May 8427* 11
June 8438* 11
July 8449* 11
August 8460* 11
September 8471* 11
October 8482* 11
November 8493* 11
December 8504* 11
Year Total 129
1932 Total
January 8516 12
February 8549 33
March 8560* 11
April 8571* 11
May 8582 11
June 8599* 17
July 8615* 16
August 8648 33
September 8665* 17
October 8681 16
November 8747 66
December 8780 33
Year Total 276
1933 Total
January 8797 17
February 8813 16
March 8846 33
April 8879 33
May 8896* 17
June 8912 16
July 8929* 17
August 8945 16
September 8978 33
October 9044 66
November 9078 34
December 9111 33
Year Total 331
1934 Total
January 9144 33
February 9177 33
March 9210 33
April 9276 66
May 9309 33
June 9342 33
July 9408 66
August 9441 33
September 9507 66
October 9573 66
November 9639 66
December 9672 33
Year Total 561
1935 Total
January 9771 99
February 9804 33
March 9837 33
April 9870 33
May 9936 66
June 9969 33
July 10002 33
August 10036 34
September 10069 32
October 10134* 66
November 10201* 67
December 10267 66
Year Total 595
1936 Total
January 10333 66
February 10432 99
March 10498 66
April 10564 66
May 10663 99
June 10762 99
July 10828 66
August 10894 66
September 10992 98
October 11091 99
November 11157 66
December 11223 66
Year Total 956
1937 Total
January 11288 65
February 11354 66
March 11452 98
April 11518 66
May 11584 66
June 11649 65
July 11748 99
August 12046 298
September 12178 132
October 12310 132
November 12478 168
December 12611 133
Year Total 1388
1938 Total
January 12743 132
February 12909 166
March 13074 165
April 13239 165
May 13403 164
June 13566 163
July 13731 165
August 13896 165
September 14061 165
October 14235 174
November 14346 111
December 14526 180
Year Total 1915
1939 Total
January 14600 74
February 14785 185
March 14934 149
April 15045 111
May 15193 148
June 15304 111
July 15452 148
August 15563 111
September 15638 75
October 15823 185
November 15971 148
December 16156 185
Year Total 1630
1940 Total
January 16341 185
February 16563 222
March 16785 222
April 16970 185
May 17191 221
June
July
August
September
October
November
December
Year Total 1035

The following dates and engine numbers represent the last engine number made in that year.
** denotes unknown last engine number of that year.

1941 18836
1942 21969
1943 25195
1944 29027
1945 32844
1946 41843
1947 45920
1948 49937
1949 54208
1950 58547
1951 63002
1952 67587
1953 71340
1954 74967
1955 78972
1956 83393
1957 87666
1958 **
1959 **
1960 101253
1961 105507
1962 109105
1963 112624
1964 117227
1965 121333
1966 124090
1967 127436
1968 130791
1969 134110
1970 137032