Solution overview
The articulated frame keeps wheel contact where a conventional monocoque quickly loses mobility.
Purpose
What the platform does
FLEX crosses trenches, craters, kerbs and uneven ground to deliver a mission payload or perform a specialist task without a person being physically present.
Operational value
What the unit receives
- higher mobility on a short difficult route;
- compact platform for logistics or specialist roles;
- operator-controlled preparation and employment cycle.
Mission roles
What the platform is built for
MATERIAL UNDER LOAD
HARDY FLEX: evidence, calculation and a steel control
The comparison keeps the exterior geometry and load concept constant and changes only the shell material. This makes the difference in damage geometry and thermal behaviour clear and directly comparable.
Basis: ρplywood ≈ 700 kg/m³; ρsteel = 7,850 kg/m³; plywood E = 7.452–10.048 GPa; steel E = 210 GPa; λplywood = 0.147–0.175 W/(m·K); λsteel = 48 W/(m·K). E·t³ is a panel screening index only. Complete-body response depends on ribs, joints, openings, supports, speed, mass, contact geometry and duration.
How damage starts and propagates
For FLEX, preservation of the two-section and joint geometry matters as much as the shell. A real run into a concrete wall showed local abrasion and a small edge chip without visible loss of body geometry.


Concrete-wall collision after a 30 m full-command run
The photographs record the actual post-event condition: local abrasion and a small edge chip without visible loss of body geometry. The side panel and bumper attachment remained intact. Impact energy was not instrumented during this run.


The event ends; the inspection begins
Impulse response is assessed separately for the front section, articulation and rear module. Joint clearance, drive mounts and free relative movement are checked after the event.

Identical heat sources; different shell response
The two sections create separated heat zones. The map helps distinguish normal drive heating from an anomaly at the joint, battery or controller.


What happens as the load increases
Plywood does not make the vehicle indestructible. Its practical value is that damage can remain visible, local and repairable before the load reaches critical joints or internal equipment.
Surface trace
Raptor-coating abrasion, scratches and a shallow edge mark. Geometry and function remain unchanged.
Local crushing
Veneer compression, a small layered chip or short delamination near the contact or fastener. Inspection and a local repair are required.
Joint displacement
A joint can open, an angle connector can deform, or a fastener can pull through. Alignment, drive mounts and retained equipment must be checked.
Functional failure
At higher energy the panel or rib can fracture, equipment can shift and mobility can be lost. The damaged module must be replaced; no protection claim is implied.
The transition points depend on mass, actual speed, angle and area of contact, support conditions, moisture, manufacturing quality and the final configuration. They must be established by instrumented tests for each model.
STRUCTURAL ARCHITECTURE
A plywood monocoque, not decorative cladding
The current HARDY body is a load-sharing plywood box with plywood stiffening ribs, 3 mm steel angle connectors, industrial bearings and local metal interfaces. Its performance comes from the closed geometry, rib spacing, joints and quality control — not from a claim that plywood is equivalent to armour steel.
Open the calculations, thermal-imaging analysis and source data →
Характеристики та комплектація
Технічні параметри
Базові параметри
- Корисне навантаження
- до 30 кг
- Швидкість
- до 20 км/год
- Запас ходу
- до 20 км у поточній заявленій конфігурації
Ходова частина та енергетика
- Архітектура
- шарнірно-зчленована рама
- Колісна схема
- чотириколісна платформа зі взаємним поворотом секцій
- Контакт із поверхнею
- центральний шарнір допомагає колесам відпрацьовувати нерівності
Корпус, інтеграція та межі експлуатації
- Корпус
- ремонтопридатна композитна конструкція із захисним покриттям
Ready package
What is included
FLEX platform with articulated frame;
operator control package;
energy and charging package;
configuration data sheet, training, checklists and acceptance test.
Delivery data sheet
Parameters fixed before order
Before delivery, HARDY records dimensions, configured mass, ground clearance, motors, battery, charging time, control range, video and telemetry set, loss-of-link behaviour, allowable slope, tested obstacles, protection rating and temperature range for the ordered configuration.
Delivery and support
Commercial terms
Across Ukraine; carrier tariff applies, typically from UAH 200.
12 months for the serial product; service scope and timing are fixed in the delivery documents.
14 days for a standard product under the published policy; configured products follow agreed terms.
Completeness check, functional test, configuration data sheet and operator onboarding.
Intended users
Who it is for
Engineering, assault and logistics units and defence foundations supporting a defined recipient.















