High Survivability Test Vehicle (Lightweight)
| High Survivability Test Vehicle (Light) | |
|---|---|
| Type | Light tank | 
| Place of origin | United States | 
| Production history | |
| Designer | AAI Corporation / Pacific Car and Foundry | 
| Designed | 1977 | 
| Manufacturer | AAI Corporation | 
| No. built | 1 Testbed built | 
| Specifications | |
| Mass | 20.45 t (with instrumentation and partial applique armor) | 
| Length | Hull: 5.981 m, Gun Forward: 8.528m | 
| Width | 2.794 m | 
| Height | Overall: 2.414 m, To Turret Top: 1.994 m, To Hull Top: 1.422 m | 
| Crew | 3 (Commander, Gunner, Driver) | 
| Main armament | 75 mm XM274 CTA autocannon | 
| Secondary armament | coaxial 7.62 mm M240 machine gun | 
| Engine | Lycoming 650 gas turbine 650hp | 
| Power/weight | 31.78 hp/tonne | 
| Transmission | GMC Detroit Diesel Allison cross drive, single-stage automatic with 4 forward and 1 reverse | 
| Suspension | hydro-pneumatic | 
| Ground clearance | 0.508 m | 
| Fuel capacity | 409 litres | 
| Operational range | 160 km | 
| Maximum speed | 83 km/h (51.6 mph) | 
The High Survivability Test Vehicle (Lightweight) (HSTV(L)) was a U.S. Army light tank manufactured by AAI Corporation. It was developed under the Tank-automotive and Armaments Command (TACOM) Armored Combat Vehicle Technology (ACVT) program.