- Rigid chassis
- WhichTractor size: Utility
- No lab test on file
- 1971–1976
- 18,540 built
WhichTractor size, not the maker’s category
David Brown 990 (A) (also listed as 900 Synchromesh) Transmission specs
9 transmission values on record for the 990 (A).
Engine power, claimed · gross or net not stated
57.3 hp
42.7 kW as stated by the source
No lab test on file
Claimed · standard not stated by the source
Source · Traktorenlexikon, “David Brown 900 Synchromesh”, claimed
This is the maker’s own figure, measured at the engine. Power at the PTO is lower — by how much, for this machine, nobody has measured.
How fast will a 990 (A) go?
The fastest speed on record for a 990 (A) is 15.5 mph (25 km/h). The gearbox itself is not on record yet.
| Drive | Available in two-wheel and four-wheel drive |
|---|---|
| Forward gears | 12 |
| Reverse gears | 4 |
| Transmission as described | 12 forward/4 reverse |
| Clutch | Dry two-stage double clutch |
| Top speed forward | 15.5 mph · 25 km/h |
| Top speed reverse | 9.4 mph · 15.2 km/hhighest reverse speed printed in the article's speed tables |
| Differential lock | Pedal-operated differential lock |
| Front axle | Pivoting David Brown telescopic front axle |
Source · Traktorenlexikon, “David Brown 900 Synchromesh”
Sources and how this page was built
9 transmission values from Traktorenlexikon, “David Brown 900 Synchromesh”.
Sources
Facts taken from these documents, units converted. Numbers beside a figure refer to this list. Licences and attribution
- Traktorenlexikon: David Brown 900 Synchromesh — CC BY-SA 4.0, WIKIBOOKS-TL-115991 · revision 990952. Wikibooks contributors (Traktorenlexikon). Original document