American Propulsion Systems

Built in America.
Built to Last.

Name: American Made Drone Motors
Brand: Ultus Inc

Onshore BLDC motor manufacturing for professional and commercial UAS — engineered with 100% U.S. sourced components from day one.

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100%

U.S. Supply Chain

In-House

Development & Testing

Scalable

Domestic Production Partners

US Magnets

Domestic Rare-Earth Sourcing

Precision Engineering

Optimized torque density, thermal performance, and mass balance across all flight profiles — from hover to sprint.

Domestic Supply Chain

100% U.S. sourced components including domestic rare-earth magnets. Sourced to spec for competitive pricing without foreign dependencies.

Custom Manufacturing

Standard motors and custom configurations available. We can source and build to your exact specifications for unique platform requirements.

// Product Line

American Made Drone Motors

Purpose-built BLDC propulsion for professional and commercial UAS. Engineered from silicon steel to finished assembly in the United States.

100% American Made

Impulse 5412
U7-Class Motor

U7-class high-torque density BLDC motor optimized for multirotor and VTOL UAS platforms. Stator wound in-house with U.S. sourced magnets, rotor balanced to aerospace tolerances.

1.7kW

Max Power (Non-Cont)

1.5kW

Max Power (Cont)

280–530

KV Range

Country of Origin

Motor Specifications

Form FactorU7-Class
Stator MaterialSilicon Steel Lamination
HousingAl 7075-T6 Aerospace Grade
Winding TypeDelta Configuration
BearingHigh-Performance Sealed
Operating Temp-20°C to +85°C

Manufacturing & Sourcing

Magnet SourceU.S. Domestic Rare-Earth
Supply Chain100% U.S. Components
AssemblyIn-House Manufacturing
Testing StandardAerospace-Grade Protocols
OriginMade in the USA
DocumentationFull Traceability

Download Impulse 5412 Spec Sheet

Complete technical specifications and performance data

// In Development

Expanding Product Line

IN DEVELOPMENT

Impulse 3115

Compact high-efficiency motor for smaller UAS platforms. Advanced development stage with initial prototypes undergoing testing.

CLASS

31xx Series

STATUS

Prototyping

IN DEVELOPMENT

Impulse 42XX

Heavy-lift propulsion system for larger UAS and VTOL platforms. Early-stage development with design validation in progress.

CLASS

42xx Series

STATUS

Design Phase

// Supply Chain

100% American Sourcing

Complete supply chain transparency with domestic partners — from rare-earth magnets to finished assemblies.

01 —

U.S. Sourced
Magnets

Rare-earth permanent magnets sourced exclusively from U.S. suppliers. Eliminates foreign supply chain dependencies and ensures consistent material availability for production scaling.

02 —

Domestic
Components

Silicon steel laminations, precision bearings, and housing materials all sourced from qualified American manufacturers. Complete component traceability from raw materials through assembly.

03 —

In-House
Manufacturing

Stator winding, rotor assembly, balancing, and final testing performed at our U.S. facility. Direct control over quality, lead times, and production capacity.

// Production Process

American Components.
Assembled Here.

Stator Core Lamination

Silicon steel lamination stacks sourced from qualified domestic suppliers. Precise slot geometry and thin-gauge materials minimize eddy current losses at high operational RPM typical of drone propulsion.

Housing Machining

Aluminum 7075-T6 motor housings CNC machined by domestic aerospace suppliers. Tight tolerances on bearing seats and stator press-fit ensure concentricity and vibration-free operation.

Stator Winding & Assembly

In-house precision winding and final assembly. Insulation class H rated wire with epoxy vacuum impregnation for moisture and vibration resistance. Electrically tested 100% in-process.

Rotor Assembly & Balance

In-house permanent magnet rotor assembly with precision balance to aerospace tolerances. Dynamic balance verification eliminates vibration-induced bearing wear and airframe resonance.

In-House Testing & Qualification

Each lot qualified in-house through thermal cycling, vibration, and operational endurance testing. Full traceability documentation provided for integration into customer supply chain records.

Supply Chain Posture

Zero Foreign
Critical Dependencies

Every critical path component — from electrical steel to copper wire to precision bearings — is sourced through vetted domestic or Five Eyes allied suppliers.

Silicon Steel Laminations US domestic — qualified stamping partners

Aluminum 7075-T6 Housing Domestic machining partners — aerospace grade

Winding Wire (Cu) Domestic magnet wire suppliers

Rare Earth Magnets U.S. domestic sourcing

Precision Bearings US / EU qualified bearing manufacturers

// Company

Why Ultus

The U.S. UAS industry built a critical dependency on foreign-made propulsion components. We exist to fix that — permanently.

Ultus Inc is a U.S.-based electric motor enterprise focused exclusively on advanced propulsion for professional and commercial unmanned aircraft. We manufacture where we operate — in the United States.

Get in Touch

Domestic Sovereignty

The U.S. drone industry's dependence on Chinese-made motors is a national security liability. Every Ultus motor is an argument for domestic production — one unit at a time.

Engineering Rigor

We apply aerospace-grade methodologies to every product — not because it's required, but because motors that fail in the field are unacceptable. Testing isn't a checkbox; it's how we sleep at night.

Supply Chain Transparency

Complete supply chain traceability from raw materials to finished assembly. Full documentation available to integrators and customers requiring domestic sourcing verification.

Speed to Integration

We understand that UAS programs move fast. Our standard form factors and off-the-shelf compliance documentation are designed to minimize integration friction and prototype lead time.

Built in America.Built to Last.