Name

HFE International

Legal name

HFE International, LLC

Website

https://hfe.aero

Company type

Private

Founded year

2010

Operating status

Operating

Ownership category

akta.pro rank

Product category

UAV Propulsion Systems

NAICS

Other Engine Equipment Manufacturing (333618)

SIC

Aircraft Engines & Engine Parts (3724), Aircraft Parts & Auxiliary Equipment, Nec (3728)

akta.pro primary industry

Military Aerospace Engines & Propulsion (IMABAMAD)

akta.pro secondary industry

Engine Control, Fuel & Ignition Systems (FADEC/Accessories) (IMABADAK)

Keywords

• UAV propulsion systems
• Electronic fuel injection engines
• Unmanned aerial vehicle engines
• Heavy fuel military engines
• Modular engine modules

Headquarters

HQ country

United States

HQ region

North America

Offices2 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

Personnel, Operations, Technology or R&D, Supply Chain, Marketing or Sales, Infrastructure

Revenue model

1. UAV Engine Sales: Sale of complete engine systems including GenPod modular engines, DA EFI engines, and Mil-Spec EFI engines. Engine prices range from approximately $11,887 to $26,023 depending on configuration.
2. Engine Accessories and Spare Parts: Sale of ancillaries including air filters, fuel systems (AN fittings, barbed fittings), electronics and sensors, servos (Volz), ECMs, PMUs, ignition components, crank sensors, wire harnesses, and Currawong Velocity ESCs.
3. Engine Services: Professional services including engine dyno testing, fuel injection system services, maintenance contracts, mobile engine testing, and thermal chamber services.

Pricing tiers

Go-to-market motion2 records

Distribution channels3 records

Marketing channels5 records

Core offering

HFE International designs, manufactures, and sells small internal combustion engines with electronic fuel injection (EFI) for unmanned aerial vehicles (UAVs), unmanned systems, and small aircraft. The portfolio includes three proprietary engine lines — GenPod modular engines, DA EFI commercial engines, and Mil-Spec EFI engines — supplemented by resold AIE Wankel rotary engines, an accessories catalog (servos, filters, fuel fittings, sensors), and engine services including dyno testing, mobile engine testing, thermal chamber services, and maintenance contracts.

Product overview

HFE International is a Tucson, Arizona-based small high-tech company specializing in reliable small engines and propulsion systems for UAV, unmanned, and small aircraft applications. The product portfolio consists of three core proprietary engine lines — GenPod® modular engines (5–15 hp, all-in-one packages with starter-generator, EFI, fuel pump, ignition, mufflers, and vibration isolation), DA EFI commercial engines (10–130°F rated), and Mil Spec EFI engines (Currawong-based, -40°F rated, Mil Std 810 tested) — supplemented by resold AIE Wankel rotary engines (40S, 80S, 225CS) and a broad accessories line including Volz servos, fuel fittings, Currawong Velocity ESCs, and electronic sensors. Services include engine dyno testing, fuel injection system work, mobile engine testing, thermal chamber services, and maintenance contracts. HFE also provides North American sales and service support for AIE's rotary engine range and integration services for defense and commercial UAV programs including Honeywell T-Hawk, Raytheon Silver Fox, Canadian Armed Forces UAVs, Latitude hybrid quadrotors, Griffon Aerospace, and Hydronalix.

Differentiator

Problem solved

Functional benefit

Brands

• GenPod®: Patented modular propulsion system containing everything needed for a UAV system including starter generator, power management system, EFI system, fuel pump, ignition, mufflers, vibration isolation and harnesses. Available in sizes ranging from 5 hp to 15 hp with a single interface.

Products and services

• GenPod® Engines Patented modular propulsion units integrating starter generator, power management system, EFI, fuel pump, ignition, mufflers, vibration isolation, and harnesses into a single package. Interchangeable across 5–15 hp range on a common mounting interface for fixed-wing, rotary-wing, VTOL, and hybrid UAV platforms.
• DA EFI Engines Commercial-grade electronic fuel injection engines designed and manufactured in Tucson, Arizona, for fixed-wing UAV applications. Fittable on different platforms including helicopters, VTOL drones, and hybrid gensets. Operating temperature range from 10°F to 130°F. Priced $11,887.62 – $15,431.25 depending on configuration.
• Mil Spec EFI Engines Military-specification electronic fuel injection engines using Currawong brand EFI components, tested to Mil Std 810 for rugged environments and capable of operating down to -40°F. Priced $23,017.50 – $26,023.46 depending on configuration (DA 100 EFI Mil Spec variant).
• AIE Wankel Rotary Engines (40S, 80S, 225CS) Wankel rotary engines distributed under the HFE–AIE partnership, featuring patented SPARCS cooling technology. 40S delivers 5 BHP at 4.4 lbs (40cc); 80S delivers 15 BHP at 11 lbs (80cc); 225CS delivers 40 BHP at 22 lbs (225cc). Multi-fuel capable (AVGAS, gasoline, heavy fuels) with 500+ hour TBO and high power-to-weight ratio.
• GenPod 70 LRU Rapid-Swap Engine Module Modular line-replaceable propulsion unit (LRU) combining a 70cc EFI engine, integrated 500W starter-generator, and all control hardware in a ~3 kg assembly delivering 3.8kW peak power with 300-hour TBO. Engineered for rapid field replacement without specialized tools; supports both pusher and tractor configurations. Priced at $24,652.00 per unit.
• Ancillary Hardware and Accessories High-quality ancillary hardware including Volz servos (DA 13-05-32, DA 13-05-60, DA 15-05-60 X.ST), fuel fittings (AN Fittings and Barbed Fittings in small/medium/large sizes), air filters (65μm, GenPod 10μm), EFI system spare parts, electronics and sensors (ECMs, PMUs, temperature sensors, crank sensors, ignition wiring, 27-pin wire harnesses), and Currawong Velocity ESCs (Velocity HC, HT, HS models).
• Engine Services Lifecycle services for UAV propulsion systems including engine dyno testing, fuel injection system services, maintenance contracts, mobile engine testing, and thermal chamber services.
• AIE Rotary Propulsion Systems — Sales and After-Sales Service Authorized engine sales and after-sales service in North America for Advanced Innovative Engineering (AIE), UK Ltd.'s range of Wankel rotary propulsion systems for unmanned aircraft and auxiliary power units, extending AIE's reach and combining AIE's rotary combustion engine design expertise with HFE's systems integration experience.

Quantifiable outcome

• 500+ Honeywell T-Hawk units manufactured and 20,000+ missions completed demonstrating proven reliability
• +3 more outcomes

Named customers7 records

Segments3 records

Ideal customer profiles3 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature5 records

Partnerships

One partnership is on record.

• Advanced Innovative Engineering (AIE), UK Ltd.coreStrategic or Co-development Partner · 27 April 2018AIE, UK-based developer of Wankel rotary engines for unmanned systems, selected HFE International as engine sales and services provider for North America. The partnership combines AIE's rotary combustion engine design expertise with HFE's systems integration experience. HFE offers AIE's range of advanced rotary propulsion systems (40S, 80S, 225CS) with full sales and after-sales support in North America. The agreement extends reach and after-sales support for AIE's high power-to-weight ratio Wankel rotary engines worldwide.

Scale indicators4 records

Recent moves7 records

Expansion highlights5 records

Broad incumbents

• Honeywell Aerospace: Major aerospace propulsion and avionics supplier that integrates small UAV engines (including HFE's T-Hawk engine control system) into broader platforms. Represents a much larger incumbent with overlapping customer relationships but broader portfolio scope.
• BRP-Rotax (Rotax): Large manufacturer of small piston engines used across light aircraft, UAVs, and other applications. Overlaps with HFE in small-engine technology and customer base but operates at vastly greater scale with broader product scope.

Direct peers

• UAV Engines Limited: UK-based manufacturer of small Wankel rotary and piston engines specifically designed for UAV propulsion. Direct competitor to HFE in the small-UAV engine market, with overlapping customer base in defense and commercial unmanned systems.
• Hirth Engines: German manufacturer of small two-stroke and Wankel rotary engines for UAVs and ultralight aircraft. Highly comparable in power class, customer type, and focus on lightweight, high-power-to-weight UAV propulsion.
• 3W-Modellmotoren: German manufacturer of small two-stroke and four-stroke engines commonly used in UAV, target drone, and small aircraft applications. Comparable product line and power output range to HFE's DA EFI and GenPod offerings.
• Engineered Propulsion Systems (EPS): US-based developer of small heavy-fuel engines for UAVs, including diesel and JP-8-capable propulsion systems. Closely comparable to HFE's Mil-Spec EFI engines in power class and defense focus.
• Advanced Innovative Engineering (AIE): UK developer of Wankel rotary engines for unmanned systems. Already HFE's partner for North American distribution, but also a potential competitor globally and a comparable technology provider in the same small-UAV rotary space.
• Rotron Power: Manufacturer of small gasoline and heavy-fuel engines specifically designed for UAV and unmanned systems. Directly overlaps with HFE's core commercial and Mil-Spec engine business.

Emerging players

• H3X Technologies: Emerging developer of high-power-density electric propulsion motors for advanced air mobility and defense UAVs. Competes with HFE indirectly as the UAV industry evaluates electric alternatives to small ICE engines.

Others

• Currawong Engineering: Australian developer of electronic fuel injection (EFI) systems used in HFE's Mil-Spec UAV engines, co-designed the T-Hawk fuel injection with Tom West. Adjacent ecosystem player / supplier-partner with deep technical overlap.

Market position

Strengths5 records

Competitive moat5 records

Key risks5 records

Key highlights6 records

Customer concentration

• Facebookfacebook.com/HFEInternational
• LinkedInlinkedin.com/company/hfe-international

Compliance3 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles2 records

Subsidiaries1 record

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about HFE International