OUR COMPANY

AN INTRODUCTION TO XDRi

WHO WE ARE

Working with Giants – The Clients

Since 2002 XRDi has developed engines with some of the biggest names in the military drone business. These include Textron, AAI, Aerosonde, Cessna, Raytheon, Aurora, Aeromech, SESI, Jabil, PAE-ISR and Lycoming. The company also obtained SBIR grants and provided consulting for other companies.

Amazing Engines

Together with these thought leaders in 2-stroke engines, our partner companies, and the deep experience in XRDi, we have developed and extensively tested a line of 2-stroke, "fuel-agnostic" engines ranging from 6-80 HP. Although much of the engine development has been focused on drone propulsion XRDi engines also offer very significant advantages toothed engines currently used for applications such as man-portable generators, truck APUs and many others.

What Next?

XRDi is seeking to leverage our unique engine and fuel management technology and designs. We are interested in discussing new applications for our technology and partnership opportunities to develop new products that require small, light, high-performing engines.

MISSION STATEMENT

XRDi is committed to the development of simple, cost effective small engine solutions that offer a high power to weight ratio, low emissions, and the ability to run equally well on whatever fuel the user has available without adjustment, pre-warming, or starting aids.

XRDi solutions address efficiency, emission and noise concerns historically associated with 2-stroke technology, and place 2-strokes back into contention as a 21st century power unit.

HISTORY


DEVELOPMENT OF THE MCDI TECHNOLOGY

MCDi inventor, Andy Allen, has a deep history in high performance 2-stroke engines. Andy worked for Pratt and Whitney in Connecticut and then started a company (AMW Inc.) to manufacture and design 2-stroke racecar engines. AMW, Inc. won 10 national championships with its engine designs. AMW then merged with Cayuna (which produced ultralight engines and a gasoline engine for the military M17 decontamination unit) to form 2SI in Beaufort, SC. 2SI manufactured 2-stroke engines for the military, Andy developed the MCDi technology and eventually split off to form XRDi in Beaufort, SC.

SOLVING DRONE ENGINE PROBLEM

From that point Andy and XRDi dealt almost exclusively with military prime contractors solving drone engine problems and providing a Heavy fuel solution to drone propulsion. Eventually this became know as the multifuel solution even though none of the competing technologies were truly multifuel solutions. They were primarily making a gasoline engine burn heavy Diesel fuel or jet fuels. The MCDi engines however could burn any fuel without any adjustment or retuning. This was not really a requirement; just a great innovation in solving the heavy fuel needs for drone engines.

1970 – 2010

Prof. Gordon Blair… read more

Learning from the best: Ongoing relationships with “guru”.

http://www.profblairandassociates.com/GPB_Tribute.html

2000

Initial development of the MCDi technology for the M17 engine decontamination unit. 2,000 units deployed

2000

Develop Small Inboard/Outboard Water Jet Engine…read more

2000-2014

Over $35 illion over 15 years of R&D funding from military contractors to develop MCDi technology.

2001

Design project for 2 stroke with Mercury for 777 jet ski engine.

2001

EzGo (Textron) – Developed and tested multifuel golf cart engine with EzGo

2001

Harley Davidson – Sidevalve Motorcycle Engine

2004-2006

On the shoulders of giants: Ongoing development relationship with Mercury Marine

2005

The project team of AAi (Textron) and XRDi to develop a replacement for Shadow drone engine.

2005-2008

Dr. Brian Callahan….read more

Dr. Callahan earned his Bachelor of Science degree in Mechanical Engineering from Cornell University in 1993. His subsequent focus on fuel droplet combustion in zero gravity, earned his Master of Science degree in Aerospace Engineering. While studying for a Ph.D. in Mechanical Engineering at Queen’s University Belfast in Belfast, Northern Ireland his research concentrated on the effects of in-cycle speed fluctuations on small two-stroke and four-stroke engines.

2005-2012

Siemens: Siemens, XRDi, USC partnership to develop hydrogen-powered engines.

2008

Developed first MCDi APU solutions.

2008

Supplied engines to Lockheed Martin Advanced Development Programs (ADP) “Skunk Works” program

2008-2011

Ricardo and NWUAV … read more

Partnered with Ricardo and NWUAV to develop Wolverine engine promoted to military, law enforcement, homeland defense applications.

​​https://www.boats.com/reviews/alternative-power-outboards-gasoline-free/

2009-2011

Raytheon … read more

XRDi tests heavy fuel engine for KillerBee unmanned aircraft system for US Army

https://www.flightglobal.com/raytheon-affirms-plans-to-launch-family-of-killer-bee-uavs/86225.article 

2011-2012

Dr. Benjamin Sheaffer, Engineering Team Member … read more

Ben has spent forty-five years in the design and development of high performance two-stroke spark-ignition, diesel and rotary engines. He has particular expertise in cylinder, piston, piston rings, direct cylinder injection for reducing exhaust emissions and engine development.

2012

Strategic alliance with Ricardo to develop an outboard engine meeting military NBOE (non-gasoline burning outboard engine) requirements.

2013-2015

Partnered with Jabil – down selected to supply replacement engine for Shadow drone for US Army.

2016-2017

Worked with L3 Aurora on bid for Abrams tank APU

2020 – Current

Resolute ISR; Resolute ISR Engine Development

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THE XRDi ADVANTAGE

Successful prototype engines with thousands of tested hours delivering reliability and performance in the field.
License our engine designs, collaborate on engine development, or modify our designs to your specific needs.

LET'S GET STARTED