# Duke Dinsmore

Carlyle John Dinsmoor (April 10, 1913 – October 12, 1985) was an American racing driver who competed under the nom de course Duke Dinsmore.
Dinsmoor served in the United States Army Air Forces during the Second World War.

## World Drivers' Championship career

The AAA/USAC-sanctioned Indianapolis 500 was included in the FIA World Drivers' Championship from 1950 through 1960. Drivers competing at Indianapolis during those years were credited with World Drivers' Championship participation, and were eligible to score WDC points alongside those which they may have scored towards the AAA/USAC National Championship.
Dinsmoor participated in four World Drivers' Championship races at Indianapolis. His best finish was 16th place, and he scored no World Drivers' Championship points.

## Motorsports career results
### Indianapolis 500 results

| Year | Car | Start | Qual | Rank | Finish | Laps | Led | Retired |
| 1946 | 45 | 8 | 123.279 | 12 | 17 | 82 | 0 | Rod |
| 1947 | 10 | 27 | 119.840 | 22 | 10 | 167 | 0 | Flagged |
| 1949 | 29 | 15 | 127.750 | 21 | 15 | 174 | 0 | Radius rod |
| 1950 | 69 | 7 | 131.066 | 15 | 33 | 10 | 0 | Oil leak |
| 1951 | 6 | 32 | 131.974 | 29 | 24 | 73 | 0 | Overheating |
| 1953 | 92 | - | - | - | 16* | 10/177 | 0 | Rear axle |
| 1956 | 64 | 33 | 138.530 | 33 | 17 | 191 | 0 | Flagged |
| Totals | Totals | Totals | Totals | Totals | Totals | 697 | 0 | |
| Starts | 6 |
| Poles | 0 |
| Front Row | 0 |
| Wins | 0 |
| Top 5 | 0 |
| Top 10 | 1 |
| Retired | 4 |
* Shared drive with Rodger Ward and Andy Linden. Dinsmoor drove ten laps of the 177 completed by Ward (138), Linden (29) and Dinsmore.

### AAA/USAC Championship Car results

| Year | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | Pos | Points |
| 1946 | INDY 17 | LAN | ATL 10 | ISF 11 | MIL 4 | GOS 3 | | | | | | | | | | 10th | 454 |
| 1947 | INDY 10 | MIL 12 | LAN 8 | ATL 11 | BAI 8 | MIL 15 | GOS 4 | MIL 11 | PIK | SPR | ARL 13 | | | | | 15th | 345.5 |
| 1948 | ARL 2 | INDY | MIL 16 | LAN | MIL | SPR | MIL | DUQ 13 | ATL | PIK | SPR | DUQ 15 | | | | 26th | 172.5 |
| 1949 | ARL | INDY 15 | MIL DNP | TRE 5 | SPR DNQ | MIL DNS | DUQ DNQ | PIK | SYR DNQ | DET 10 | SPR DNQ | LAN 13 | SAC 14 | DMR DNQ | | 20th | 254 |
| 1950 | INDY 33 | MIL 14 | LAN 4 | SPR 7 | MIL 4 | PIK | SYR 10 | DET 5 | SPR 11 | SAC 1 | PHX 18 | BAY 7 | DAR 5 | | | 6th | 1,017 |
| 1951 | INDY 24 | MIL | LAN | DAR DNQ | SPR | MIL 18 | DUQ | DUQ | PIK | SYR DNQ | DET DNQ | DNC | SJS | PHX | BAY | - | 0 |
| 1952 | INDY DNQ | MIL | RAL | SPR DNQ | MIL | DET | DUQ | PIK | SYR | DNC | SJS | PHX | | | | - | 0 |
| 1953 | INDY DNS | MIL | SPR DNQ | DET 12 | SPR | MIL 15 | DUQ DNQ | PIK | SYR | ISF | SAC | PHX | | | | 58th | 5.1 |
| 1954 | INDY DNQ | MIL | LAN | DAR | SPR | MIL | DUQ | PIK | SYR | ISF | SAC | PHX | LVG | | | - | 0 |
| 1956 | INDY 17 | MIL | LAN | DAR DNQ | ATL | SPR | MIL 18 | DUQ | SYR DNP | ISF | SAC | PHX | | | | - | 0 |
| 1960 | TRE | INDY DNQ | MIL | LAN | SPR | MIL | DUQ | SYR | ISF | TRE | SAC | PHX | | | | - | 0 |
* 1946 table only includes results of the six races run to "championship car" specifications. Points total includes the 71 races run to "big car" specifications.

### FIA World Drivers' Championship results

(key)
| Year | Entrant | Chassis | Engine | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | WDC | Points |
| 1950 | Brown Motors | Kurtis Kraft 2000 | Offenhauser L4 | GBR | MON | 500 33 | SUI | BEL | FRA | ITA | | | NC | 0 |
| 1951 | Brown Motors | Schroeder | Offenhauser L4 | SUI | 500 24 | BEL | FRA | GBR | GER | ITA | ESP | | NC | 0 |
| 1952 | Vulcan Tool | R Miller | R Miller | SUI | 500 DNQ | BEL | FRA | GBR | GER | NED | ITA | | NC | 0 |
| 1953 | M.A. Walker Electric | Kurtis Kraft | Offenhauser L4 | ARG | 500 16 * | NED | BEL | FRA | GBR | GER | SUI | ITA | NC | 0 |
| 1954 | Commercial Motor Freight | Ewing | Offenhauser L4 | ARG | 500 DNQ | BEL | FRA | GBR | GER | SUI | ITA | ESP | NC | 0 |
| 1956 | Shannon's | Kurtis Kraft 500A | Offenhauser L4 | ARG | MON | 500 17 | BEL | FRA | GBR | GER | ITA | | NC | 0 |
    * Indicates shared drive with Rodger Ward and Andy Linden.