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Hayes Diversified Technologies, USA...

...stands firm on a core value system that embraces Innovation, Quality and Service. HDT USA delivers uncompromising technology, dynamic engineering and revolutionary design to its customers in every product. The company's size, expertise and intensity allow for greater flexibility developing leading edge technology for the motorcycle and small diesel engine markets.   We are honored to serve the men and women of our Armed Forces by providing the best equipment possible. HDT USA is proud to provide the best in diesel motorcycle technology to both our government and civilian customers.

The Diesel Motorcycle Technology

The HDT motorcycle diesel engine is based on state-of-the-art high-speed automotive diesel engine technology, engineered into a complete power unit suitably sized and packaged for installation in a compact on/off road motorcycle.

The basis of the design is a technology demonstrator program for a motorcycle diesel engine carried out by Cranfield University in the United Kingdom. Details of this program are reported in SAE Paper 982051.

The aim is to produce the best possible power and torque without the need for turbocharging. To achieve good power, an advanced, thermally robust, free-breathing four valve cylinder head is used, in combination with an indirect injection combustion system and intensive development and tailoring of the fuel injection characteristics. Indirect injection also gives lower combustion pressures – enabling lighter engine construction, less ‘diesel knock’ and low particulate emissions.

The engine is of conventional mechanical design, optimized for this particular application. Lightweight reciprocating components give minimum vibration and reliability is assured by good design, high duty materials and advanced manufacturing techniques.

A deliberate decision was taken to use mechanically controlled fuel injection for the current engine, employing a purpose-designed injection pump. For the future, electronic control will allow further enhancements in performance. The engine is capable of operation on either diesel fuel (mineral and bio-diesel) or aviation kerosene.

The result is a simple, compact, lightweight power unit of more than twice the specific power output of conventional small diesel engines.

The usable engine speed range is also much greater than other diesel engines. Peak power of some 50 hp/litre is developed at around 5800 rev/min, with usable power available up to well over 6000 rev/min. This is combined with excellent low speed torque in a way which is unique for a diesel engine. The motorcycle thus has outstanding drivability with less need for gearchanging, which aids both on-road enjoyment and cross-country performance in the hands of expert and less experienced riders alike.

History of Hayes Diversified Technologies, USA and Diesel Motorcycle History

Defense and Aerospace:
HDT started business in 1961. During the 60's and 70's, we specialized in the development and manufacture of electro-mechanical switches and relays for defense and aerospace.

HDT also developed unique injection and compression molding equipment that produced plastic components for the electronics industry.

The majority of our business has been with the
U.S. Department of Defense.

We were also OEM for major defense companies, including Lockheed, Boeing, Control Data, and Unisys.

Commercial Motorcycles:
In 1970, HDT expanded into commercial motorcycles sales.

Under the trade name METTCO, we enjoyed selling and racing PENTON Sport Cycles. We also developed and produced performance modifications for both European and Japanese off-road motorcycles.

From 1976 through 1979, we were consultants to Honda's off-road racing and enduro teams. We produced suspension components and provided 2-stroke engine performance modifications for their winning efforts from 1977 through 1979.

Military Motorcycles:
In early 1981 the United States Army put forth a Request for Proposal for the first official production of tactical military motorcycles since World War II.

HDT was able to combine its experience as a government
contractor with many years of successful off-road motorcycle development to put together the winning bid.

As a result of our proposal, HDT was awarded the first modern military motorcycle contract.

Since that first contract, HDT has been awarded more than 45 contracts, resulting in over 2500 military motorcycles being delivered to the U.S. and allied military forces.

Our latest military motorcycle production contract was for 466 modified Kawasaki KLR650s. Previous contracts had been based on the KLR250. The move to the bigger, more powerful 650 was seen as somewhat of a risk for the Marine Corps. However, the risk paid off. The modified KLR650, now known as the M1030B1 Marine Corps motorcycle has proved to be the best performing, most reliable tactical military motorcycle now in service with any military organization. This includes competitive machines from BMW and KTM.

Diesel Fueled Military Motorcycles In 1984 all NATO military forces adopted a long-term goal of a "single battlefield fuel" to reduce the logistics burden of supplying gasoline, diesel fuel, aviation gasoline, and aviation kerosene (jet fuel). The objective was to convert or replace all existing fueled equipment, including trucks, tanks, light transport equipment, and aircraft to operate on aviation kerosene.

To implement the single battlefield fuel concept, the U.S. Navy announced in 1997 that, beginning in the year 2005, they would no longer transport or supply gasoline in any form. They would only supply "heavy" fuels, such as, diesel and jet fuel.

At that time there were only two major tactical military systems still using gasoline, small field generator sets and motorcycles. The military approached both generator set and motorcycle manufacturers to determine what alternatives might be available. The generator set manufacturers responded immediately with some diesel fueled options. However, all the motorcycle manufacturers approached indicated that a diesel fueled motorcycle was neither commercially practical, cost effective, or, in some cases even possible given the performance requirements.

As a last resort, the U.S. Marine Corps requested proposals from all interested sources, offering to pay for the development of a diesel/jet fuel powered military motorcycle through the Small Business Innovation Research Program (SBIR). They received over 40 responses. The Marine Corps selected two companies for the initial feasibility study, HDT and a small company in Oklahoma.

After reviewing the studies from both companies, HDT was
selected as the sole source for Phase II, which was to actually produce a total of 15 diesel motorcycles.

HDT successfully completed the first part of Phase II in May of 2001, when they demonstrated the first motorcycle that used a diesel engine specifically designed as a motorcycle engine. The motorcycle exceeded all expectations and was received with great acclaim by both the news media and potential military customers.

The final part of the Phase II effort was completed in September of 2001 when a total of nine diesel motorcycles completed two field user trials conducted by the Marine Corps.

HDT has entered Phase III of the program and is currently under contract with the Marine Corps to produce up to 522 JP8/Diesel Combat Motorcycles.

About Mr. Fred Hayes

Mr. Hayes  has been with HDT since its beginning in 1961 and has led the Company to be the largest supplier of military motorcycles to the U.S. Defense Department. Mr. Hayes has over 30 years experience in all aspects of government contract management and accounting. He is also HDT's Chief Engineer and responsible for the management of the R&D and production departments.

Mr. Hayes is the Project Manager for the diesel motorcycle program and is ultimately responsible for all aspects Research & Development and production design for the diesel engine program.

Mr. Hayes is an experienced motorcycle rider and has earned Gold and Silver Medals in motorcycle competition. His most recent accomplishment was to ride two of HDT's diesel motorcycles to the first recognized Land Speed Records for diesel motorcycles at Bonneville, Utah. Mr. Hayes has also competed successfully in international motorcycle competition and earned a Platinum Medal (the highest award) at the 2003 UK National Rally. He was a part of a three man team consisting of Dr. Stuart McGuigan, Mr. John Crocker and Fred Hayes. All were on HDT's diesel motorcycles.

In addition Mr. Hayes was one of the primary consultants to the Motorcycle Safety Foundation and the U.S. Marine Corps during the development of the Marine Corps' Military Motorcycle Operator Training Course. Mr. Hayes still holds credentials as a Military Motorcycle Chief Instructor.

About Dr. McGuigan

Dr. McGuigan  is an outside Design consultant. He is working as the Chief Design Engineer and is responsible for the design of the power unit for the HDT family of high performance diesel engines. Stuart McGuigan obtained first class honors in mechanical engineering at Aston University via a student apprenticeship with the Birmingham Small Arms Group (BSA). Following work for BSA on motorcycle design and development, he returned to Aston to undertake doctoral research concerning the flow and bulk handling of fluidized solids and the design of systems to exploit this technology. He designed the first rig to yield industrially useful data on fluidized flow. In 1973, he joined the Royal Military College of Science (RMCS) - now a faculty of Cranfield University, and was appointed Director of Design in the Engineering Systems Department in 1997. Since 2003, he has worked as an independent consultant engineer and is also a director of his own company, Criterion (Engineers) Ltd, which designs, manufactures and markets specialist equipment for vehicles, including motorcycles. He also continues to work for RMCS as a consultant.

He has wide-ranging interests in engineering design, including military and heavy vehicle power packs, weapon systems, inland waterway and small offshore boats. His work for RMCS is centered on the military interests, encompassing both teaching and consultancy. He is a major contributor to the Masters' course in military vehicle technology and has taught on advanced specialist courses at home and overseas.

He has considerable experience in technical risk assessment and design review work for the Ministry of Defense and defense prime contractors, playing a major role in assessments on the AS90 self-propelled gun, Challenger 2 main battle tank and Terrier armored engineer vehicle, and leading work on the Spearfish naval torpedo and the MRAV/ABSV armored vehicle family. This work has resulted in major enhancements in equipment specification, reliability and availability. He has also undertaken technical risk assessments in the commercial sector.

He is still an active designer, concentrating recently on internal combustion engines and their drivelines, and has established an international reputation as a consultant in countries including USA, India, Japan and the UK. Other motorcycle projects include a range of gearboxes, an electric starter installation and a unit-construction engine. All this work embraces technical consultancy from concept design, through detail design and development, to the inception of full commercial production. Other work has included value engineering of a complete motorcycle already in volume production, leading to more than 100 proposals for optimizing cost-effectiveness in manufacture.

Diesel Motorcycle and Gasoline Models manufactured by Hayes Diversified Technologies USA

The M1030M1 JP8/Diesel Military Motorcycle has been under development since 1998.  It is designed to operate reliably and efficiently on Kerosene based fuels to include Diesel Fuel and Aviation Kerosene.  HDT is under contract with the U.S. Marine Corps to delivery over 440 M1030M1s.  Production will begin in March of 2006.

The M1030M1E is a variant of the M1030M1.  It is specifically designed to meet the needs of both the UK and EU NATO countries.  Production of both the M1030M1 and M1030M1E will begin in March of 2006.

The M1030B1 Military Motorcycle at 48 PS, is the most powerful production tactical military motorcycle ever put into service.  The M1030B1 is currently in service with the U.S. Marine Corps, the U.S. Army, and the U.S. Air Force.

The Diesel fueled D650A1Bulldog with a world class rolling chassis, the proven performance and durability of the M1030M1 Military Motorcycle engine, the spectacular patriotic graphics, and over 102 mpg, the Diesel fueled D650A1Bulldog is a true "triple threat", winner for sport touring, on/off road riding, and everyday commuting. Production is scheduled for March of 2006.  HDTUSA will start taking orders October 1, 2005.

Special Addition M1030B1C Commemorative Military Motorcycles. In celebration of our 20th year supplying the United States Marine Corps with Combat Motorcycles, HDTUSA is proud to offer 20 Special Addition M1030B1C Commemorative Military Motorcycles.  Only 20 will ever be built.  HDTUSA will start taking orders October 1, 2005..

Press Releases relating to diesel motorcycles and HDT USA

Gizmag - Australia, July 18, 2005
Diesel Power Military Motorcycles

The concept of a diesel motorcycle is not one that has occurred to a lot of people – at least not many have thought about it for long because despite a rich century of innovation in motorcycling, only a handful of diesel motorcycles have existed and until very recently, they have all been utility vehicles – bikes designed to get great economy on fuel of questionable quality in rugged and remote regions and said diesel two-wheelers had no performance pretensions.

Special Operations Technology - Online Edition, June 7, 2005
Everyone is in favor of small diesel engines for a
variety of SOF applications—is there a solution?

In the aftermath of Operation Desert Storm, military planners tackled the logistics nightmare of mixed ground, air and sea mobility platforms and support systems that mandated a numbing array of different fuel requirements across the battlefield.

News and Star UK - December 15, 2004

BRITISH technology has helped produce the world’s first production diesel military motorbike. The 86 mph bike, already ordered by the US Marines, may be available for the consumer market in the future. The bike is the result of a technology partnership between Cranfield University in Oxfordshire and California-based Hayes Diversified Technologies (HDT).

Rubber Mag - November 4, 2004
First Diesel Military Motorcycle To Hit The Road
A unique technology partnership between Cranfield University and California-based Hayes Diversified Technologies (HDT) has created the world's first production diesel military motorbike and the first bike of any kind with a purpose-designed diesel power unit.

Machine Design - October, 2004
Diesel motorcycle sets speed record
A diesel-powered motorcycle built by Hayes Diversified Technologies Inc., Hesperia, Calif., and faculty from Cranfield University recently set a speed record for commercial diesel motorcycles. It hit 85.46 mph at sea level on hard pavement and with production gearing.


Hayes Diversified Technologies (HDTUSA) - September 13, 2004
Sets Two Land Speed Records for Diesel Motorcycles
at International Speed Trials

The World’s First Purpose-Built Production Diesel Motorcycles Wins Big at Henry Ford’s Speed Course at Bonneville Speedway . Hayes Diversified Technologies (HDTUSA), the world’s first purpose-built production diesel motorcycle engine manufacturer, set two land speed records at the International Motorcycle Speed Trials, (www.speedtrialsbybub.com) held at Bonneville, September 6-10, 2004.

Diesel Progress North American Edition - Sept, 2004
Lightweight vehicles go to war: ATVs, motorcycles and
battery-powered bicycles do their duty in Iraq, Afghanistan
The U.S. military is interested in lightweight vehicles that can reach places where larger Humvees and trucks can't go. These include utility vehicles, ATVs, motorcycles and even battery-powered bicycles. Some ultralight vehicles are already in use in Iraq and Afghanistan, offering mobility in remote and rugged locations. Here is a look at some equipment in active duty and under development by the military.

Hayes Diversified Technologies (HDTUSA) - August 2004
Creates the World’s First Purpose-Built Diesel Motorcycle Engine and Receives an Additional $3 Million in Funding
Hayes Diversified Technologies (HDTUSA), the world’s first production diesel motorcycle engine manufacturer, announced today that at the specific request of the Marine Corps, an additional $3 million was added to the current $2.2 million for the production of the M1030M1 JP8/Diesel Military Motorcycle. The additional funding is part of the 2005 Defense Appropriations Bill.


Daily Motorcycle News -Weblog, May 27, 2004
Civilian Version of Military KLR DIESEL Motorcycle
There are lots of good reasons to have a powerful motorcycle that can run diesel for the army, but that equally applies to civilian applications & use . Obviously, the cost of running a diesel motorcycle would be lower that a normal one, but more important, a civilian version of the Military spec Kawasaki KLR 650-M1030M1 would be great for all those adventurer riders, passing through countries were unleaded fuel is unheard off, and were you'd be lucky to have diesel fuel available.

Daily Motorcycle News -Weblog, July 26, 2003
Diesel Power Military Motorcycles
Almost always, the armies around the world try to keep their logistics simple. For their vehicles, this means that they standardize on one fuel only;- and that's diesel since all trucks and tanks require diesel. This means they'll only need to carry one fuel in to the battlefield. However, motorcycles have proven themselves over the last 100 years in battles, and they don't run diesel.

For Immediate Release - Diesel Press
The programme by the Royal Military College of Science [RMCS] and Hayes Diversified Technologies [HDT] to design and develop a diesel motorcycle was undertaken to meet the requirement for all NATO armed forces to operate their entire inventory of powered equipment on either diesel fuel or aviation kerosene.