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.
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.
In early 1981 the United States Army put forth a Request for Proposal for
the first official production of tactical military motorcycles since World
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
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
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 Marine Corps Commerative
HDT Marine Corps Commerative
Four stroke, single cylinder
651 cc / 39.7 cu-in
Bore x Stroke
100 x 83 mm
Keihin CVK40 carburetor
48 hp / 35.0 kW @ 6500 rpm
5.3 kgf-m / 38.3 lb-ft @ 5500 rpm
41mm telescopic forks
Single 252mm disc 2 piston
Single 203mm disc 1 piston caliper
111 mm / 4.4 in
889 mm / 35.0 in
153 kg / 337.3 lbs
189 kg / 416 lbs
23 Litres / 6.0 US gal
HDT M1030-M2 670cc JP8
HDT M1030-M2 670cc JP8
Liquid/oil cooled, four stroke, single cylinder
671 cc / 40.9 cu-in
53 Nm 5.4
kgf-m @ 3300
Wet, cable operated
41mm telescopic forks Cartridge
Single 240mm disc 2 piston
Single 240mm disc 1 piston caliper
This here’s the HDT M1030-M2 670cc JP8, but don’t let the
charming name deceive you, this military-grade motorcycle is as tough as old
Boasting a (patent pending) “heavy fuel” engine capable of running on Diesel,
Biofuel, Aviation fuel and four other military grades of petroleum, it can
traverse water 2ft deep and has a tank range of over 300 miles.
Its single, four-stroke cylinder will reach 95mph in the heat of combat, and at
33bhp it’s even suitable for restricted licence holders.
Despite a price tag of $18,500 there’s already a significant waiting list of
survivalists, mercenaries and prospectors hoping to get their hands on its high
tensile steel frame.
Hayes Diversified Technologies Inc. claim the M1030 is a “breakthrough in
military ground vehicle technology”, one that comes decorated in Desert Tan,
Military Green or Black.
NOTE: Any correction or more
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