Calidus LLC

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Trainer & light attack

United Arab Emirates

Calidus LLC

B-250

The UAE's first domestically developed light attack and advanced trainer aircraft, built by Calidus with Brazil's Novaer, Rockwell Collins, and Pratt & Whitney Canada. A tandem-seat, all-carbon-fibre turboprop covering close air support, counter-insurgency, armed ISR, and advanced flight and mission training.

In service since 2019 · 1 operator countries

Compiled from public sources ·primary reference ↗

Data confidence Last verified 2026-08-24 ·

Stub · 14%

558

km/h

4,500

km range

9,144

m ceiling

1,796

kg payload

Pricing: Unit cost not publicly disclosed

Procurement snapshot

Availability & export

National export licensing

Subject to United Arab Emirates export-control approval; verify eligibility with the manufacturer.

Channel: Direct commercial / G2G

Fielded & proven

Limited · 1 operator

In service since 2019. Status: active.

Lifecycle cost (est.)

No public unit price to model from. Why so few systems publish one →

Interoperability

No standardised NATO calibre / datalink detected in public specs.

Competitive field

12 comparable systems from 9 other manufacturers

Counted in the WeaponSpecs database: trainers built by another manufacturer that share at least one published role with this system. A count of what this catalog holds, not a survey of the whole market. See the alternatives →

Derived guidance from public data, export regime by country of origin, lifecycle from the GAO ~30% acquisition rule. Verify eligibility, pricing and offsets with the manufacturer and your acquisition authority.

Full specifications

Performance

Speed, range, altitude and engagement capability.

Performance specifications
Max speed Maximum level speed. For aircraft this is at optimal altitude; for ground vehicles, top road speed. Higher means faster response and better kinematic performance.	558 km/h Bottom 3% of trainers
Range Maximum distance: ferry range for aircraft, operational range for vehicles, maximum engagement distance for missiles. Higher means more standoff or persistence.	4,500 km Top 3% of trainers
Service ceiling Maximum operating altitude. Higher gives energy advantage and sensor horizon.	9,144 m Bottom 9% of trainers
Endurance Time on station. Critical for UAVs and patrol platforms, higher means longer persistent coverage. On a ground robot, published continuous run time on a full charge or fuel tank.	12 h

Firepower

Armament, payload and guidance.

Firepower specifications
Weapons payload Maximum ordnance weight the platform can carry. Higher means more strike capacity per sortie.	1,796 kg Stronger than 43% of trainers

Physical

Dimensions, weight and crew.

Physical specifications
Crew Personnel required to operate. Fewer reduces exposure; autoloaders trade a loader for mechanical complexity.	2

Propulsion

Engine, power and fuel.

Propulsion specifications
Engine Powerplant model and type.	Pratt & Whitney Canada PT6A-68 turboprop
Engines Number of engines. Twin-engine gives redundancy at higher cost.	1
Engine power Engine output power. Higher moves more weight faster.	1,600 hp
Propulsion type Turbofan, turboshaft, diesel, gas turbine, solid-fuel rocket, ramjet…	Turboprop

Program

Cost, production scale and operators.

Program specifications
Operator countries Number of countries operating the system. More operators means broader support ecosystem.	1 Stronger than 15% of trainers

Specifications compiled from public Calidus LLC and reference sources ↗. Published defense figures are approximations, treat comparisons as directional. Last verified 2026-08-24.

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