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DAVID BROWN TRACTORS

TRACTOR DESIGNATIONS ARE BUILT AS FOLLOWS

 

PREFIX                                                                                                    PREFIX                   

V             Vehicle                                                                                 900J                                                      
A             Agricultural                                                                         950T
I               Industrial                                                                             950V
R             Road Traffic Act vehicle                                                    950A
C             Cropmaster Type                                                               850A
T              Trackmaster                                                                       85OC     - Livedrive (Dual clutch)
K             Kerosene                                                                             8SOC     -
G             Gasoline                                                                              880E
D             Diesel                                                                                   880A      -
1              First Series                                                                          990A      -
3              3.518 in. bore engine                                                       770A
6              6 cylinder                                                                            90OL      -
P             Prairie                                                                                   95OU
100         With cylinder lift                                                                950W     -
200         Without cylinder lift                                                         950B      -
U             American model                                                               850B      -
G             German model                                                                  850D      - Standard model
                                                                                                             880D      - (Non-livedrive, single clutch)
                                                                                                             880F       -
                                                                                                             880B      -

SUFFIX
M            Without hydraulics and PTO
S              12 speed gearbox
N             Narrow model
V             Vineyard model
H             High clearance
 
ENGINE DESIGNATION BUILT UP AS FOLLOWS
 
 -         Agricultural                                                                         4                              4-cylinder
-      Kerosene                                                                            *3                           3 5/8 bore
-      Gasoline                                                                              (when used at end of designation)
-      Diesel                                                                                    *3/31/2                 3 1/2  bore
-      Industrial                                                                             6                              6 cylinder
-      Stationary                                                                           2                              2 cylinder
-      Marine                                                                                                                 3 cylinder
-      Cropmaster and 30C type
(when used in front of engine designation)
-      Lamp oil
-           High altitude

When not included in engine designation, denotes 3 ½ bore for 4 cylinder engines, excepting the IG/1C which has 3.625 bore.  The 6 cylinder engine also has 3.75 bores.
From the 3 cylinder 880 and 770 Selectamatic engines onward, the final designation figures relate to the approximate capacity in cu. In. for 1 cylinder.
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DAVID BROWN MODEL DESIGNATIONS AND PRODUCTION DATES
Agricultural Wheeled Tractors
Description                   Class                       Serial Nos.                Production
VAK1                                  VAK1; VAG1                    1001-6000                      1939-1944
VAK1A                                VAK1A; VAG1A                6351-9852                      1945-1947
Cropmaster                         VAK1C; VAG1C                P10000-44000               1947-1953
30C First Series                  VAK1C; VAG1C                P44500-46058               1953-1954
30C Second Series             VAG1D/30; VAK1D/30     P/30 10001-12766          1954-1957
Cropmaster Diesel              VAD1C                             PD10001-18000              1949-1953
30D Diesel First Series       VAD1C                             PD185000-20797            1953-1954
30D Second Series             VAD1D/30                       PD/30 10001-19452         1954-1957
Super Cropmaster               VAK3/1C; VAG3/1C        SP10001-14881               1950-1952
Prairie Cropmaster              VAK3/1C/P; VAG3/1C/P  SPP10001-10600            1951-1954
Prairie Cropmaster Diesel   VAD3/1C/P                     PDP10001-10245             1952-1954
Cropmaster Vineyard          VAK/1C/N                       N10026-10205                  1947-1953
"     " Vineyard Diesel          VAD/1C/N                      ND10001-10084                1951-1952
50D                                     VAD6                              VAD6 10001-11260          1953-1958
25                                        VAG1C/25; VAK1C/25   P25 10001-21318             1953-1958
25D                                      VAD1C/25                      PD25 10001-23424          1953-1958
2D                                        VAD12                            VAD12 10001-11644       1956-1961
2DV                                     VAD12V                          VAD12V 10001-10364     1957-1961
900 Petrol                            VAG1H/30                      900G 10001-10305          1956-1958
900 Kerosene                    VAK1H/30                        900K 10001-10265           1956-1958
900 Diesel                         VAD1H/30                        900D 10001-17437           1956-1958
900 - J & L series               VAG1J/30; VAG1L/30     J900G; L900G
                                          VAK1J/30; VAG1L/30      J900K; L900K
                                          VAD1J/30; VAD1L/30      J9 00D; L900D
                                                                                      50001-55445                 1957-1958
950                                  VAD1T; VAG1T; VAK1T    T950G; U950G; T950K
                                        VAD1U; VAG1U; VAK1U   U950K; T950D; U950D    
                                                                                      57000-62934                 1958-1959
950 Implematic                VAD1V; VAG1V; VAK1V    V950G; W950G; V950K
  First Series                    VAD1W; VAG1W; VAK1W  W950K; V950D; W950D  
                                                                                       63000-81126                1959-1961
950 Implematic                VAD3A; VAD3B                950/3A; 950/3B
   Second Series                                                            400001-401489             1961-1962
850 Implematic                VAD2A; VAD2B                A850D; B850D
   First Series                    VAG2A; VAG2B                A850G; B850G
                                                                                       300001-306334             1960-1961


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