AV-35-HT
| AV-35-HT | |
|---|---|
| |
| Heavy tank configuration of the AV-35 platform | |
| General Characteristics | |
| Classification | Heavy Tank |
| Type | Tracked armored combat vehicle |
| Origin | Gondara |
| Manufacturer | Key Weapons Logistics (KWL) |
| Used By | Army of Gondara |
| Design Date | 1935 |
| Service Entry | 1939 |
| Unit Cost | |
| Crew | 4 |
| Passengers | None |
| Technical Data | |
| Weight | 30 tons |
| Dimensions | 19 ft (L) × 9 ft (W) × ~8.5 ft (H) |
| Ground Clearance | 18 in |
| Engine | V8 mechanically supercharged diesel |
| Fuel Capacity | 120 gal internal (+120 gal breakout tank) |
| Power | 333 hp(~11 hp/ton hp/ton) |
| Torque | ~1,050–1,150 lb-ft |
| Transmission | 5-speed manual with low-range gearing |
| Suspension | Torsion bar (maximum rated load) |
| Range | ~150 mi (road), ~75 mi (off-road), up to ~300 mi with breakout tank |
| Speed | ~28–32 mph (road) |
| Utility & Logistics | |
| Payload / Towing | Combat systems/ 8 tons practical; 12 tons emergency |
| Wheel Standard | AV-35 tracked chassis (6 road wheels per side) |
| Equipment | 75mm heavy turret; modular armor system; breakout fuel capability |
| Combat Data | |
| Armament | 75mm high-velocity cannon (60 rounds) |
| Armor | Reinforced sloped + spaced armor system |
| Communications | Standard vehicle radio |
Overview
The AV-35-HT is the heavy tank configuration of the AV-35 armored vehicle system.
Developed as the final and most heavily armed variant of the platform, the HT integrates a 75mm high-velocity cannon with the reinforced armor system of the AV-35-MT, bringing the vehicle to its maximum designed combat weight.
While offering significantly increased firepower and strong frontal protection, the HT operates at the upper limits of the AV-35 chassis and exhibits reduced mobility and efficiency compared to lighter configurations.
Design Relationship
The AV-35-HT shares its full chassis, drivetrain, and structural layout with:
- AV-35-C — Mechanized Assault Carrier
- AV-35-R — Reconnaissance Vehicle
- AV-35-LT — Light Tank
- AV-35-MT — Medium Tank
All AV-35 variants are built on a unified platform engineered for a maximum combat weight of 30 tons.
The HT configuration operates at this maximum threshold.
Construction
The AV-35-HT retains the standard AV-35 platform structure:
- Front-mounted engine compartment
- Central turret ring rated for 75mm weapon systems
- Rear ammunition and systems compartment
- Torsion bar suspension
- 6 road wheels per side
- Wide low-pressure track system
At 30 tons, the HT places the suspension and drivetrain at their designed limit. While this does not result in abnormal failure rates, it produces noticeable differences in handling, responsiveness, and long-term wear compared to lighter variants.
Armament
Primary Weapon
- 75mm High-Velocity Cannon
- Ammunition carried: 60 rounds
The 75mm system provides:
- Effective engagement of medium and heavy armored vehicles
- Strong penetration capability at standard combat ranges
- Increased destructive effect against fortified positions
Secondary Weapon
- 9.375mm VMG (coaxial)
Used for:
- Infantry suppression
- Defensive fire
- Engagement of soft targets
Armor
The AV-35-HT utilizes the same reinforced armor system as the AV-35-MT.
Frontal Armor
- Base plate: 25mm at 60°
- Standoff gap: 6.25mm
- External plate: 12.5mm at 60°
This produces approximately 75mm of line-of-sight thickness.
Due to the combined effects of slope and spacing, the frontal armor provides strong practical resistance against early-war anti-tank weapons.
Side Armor
- Base plate: 18.75mm at 20°
- Standoff gap: 6.25mm
- External plate: 12.5mm (oblique)
This produces approximately 33mm line-of-sight thickness with improved resistance due to spaced configuration.
Floor and Top
- Top: 12.5mm
- Floor:
* 12.5mm central section * 6.25mm outer edges * Shallow V-shaped hull for blast deflection
Fire Control and Stabilization
The AV-35-HT retains the gyroscopic elevation stabilization system originally designed for the 56.25mm configuration.
When paired with the heavier 75mm cannon, the system can exhibit reduced stability during movement. The increased mass and recoil characteristics of the larger weapon occasionally cause overcorrection or tracking inconsistency.
As a result, approximately one in ten rounds fired on the move may deviate significantly from the intended point of impact.
This limitation does not affect stationary firing accuracy. Crews are trained to fire from short halts or controlled movement when engaging armored targets.
Amphibious Capability
The AV-35-HT is not amphibious.
The combined weight of reinforced armor and heavy turret exceeds the buoyancy limits of the platform.
Field testing demonstrated that removal of the turret allows the base hull to achieve flotation for controlled water crossing under engineering supervision.
Mobility
The AV-35-HT operates with reduced mobility compared to lighter variants:
- Road speed: ~28–32 mph
- Lower acceleration and responsiveness
- Reduced fuel efficiency
- Higher mechanical load
While still capable of sustained movement, the HT is no longer suited for rapid maneuver operations and requires more deliberate positioning.
Operational Role
The AV-35-HT serves as Gondara’s primary heavy combat tank:
- Anti-armor engagement
- Breakthrough operations
- Direct fire support against fortified positions
It is typically deployed after initial engagement phases or in areas where increased firepower and protection are required.
Limitations
- Reduced mobility compared to LT and MT configurations
- Increased fuel consumption
- Loss of amphibious capability
- Reduced firing accuracy on the move due to stabilization limitations
- Greater mechanical strain over extended operations
Summary
The AV-35-HT represents the maximum combat configuration of the AV-35 platform, combining increased firepower and reinforced armor at the cost of mobility and efficiency.
It serves as a deliberate, high-impact armored unit designed to engage and defeat the heaviest threats of its time.