Atc-90: HONDA ATC90: THE FIRST MODERN ATV

ATC90-History

ATC 90.COM

ATC90-History

And the ATV was Born………

The world’s first ATV, Honda’s three-wheel US90, was introduced to America in 1969. The US90, later renamed
the All-Terrain Cycle 90 (ATC) in 1971, was powered by an 89cc four-stroke single-cylinder engine that sent its 7-horsepower
through a dual-range four-speed gearbox with automatic clutch. It featured extras such as a Swivel-Lok handlebar for easy
loading in a trunk or station wagon, and was sold for just $595.
Honda engineer Osamu Takeuchi headed the US90 development
program, which began in 1967, when American Honda asked Honda R&D for a new product that dealers could sell when motorcycle
sales tapered off in the winter.

Takeuchi began with a head full of ideas and an eclectic assortment of components.
Two-, three-, four-, five- and even six-wheeled configurations were examined, but the three-wheel concept was the best configuration
for the machine’s intended mission. It dealt with snow, mud and assorted slippery conditions a two-wheeler couldn’t, while
providing more maneuverability than other proposed designs.

In the early stages, a Honda ST70 motorcycle gave up
its 70cc four-stroke single-cylinder engine for the cause, along with assorted chassis parts. Two-drive wheels in the rear
worked well, but the biggest challenge was finding tires capable of getting a grip on soft terrain such as snow, sand and
mud. Motorcycle tires weren’t an option.

The design process quickened when American Honda sent Takeuchi an American
invention called the Amphi-Cat that rolled on six, 20-inch, low-pressure, high-flotation balloon tires. Revamping the ST70-based
prototype to accept the new low-pressure rolling stock, engineers went to work on a new tire design, ending up with a low-pressure,
22-inch tire. With the tire dilemma solved, the engine became the focus. The powerplant wasn’t powerful enough, so displacement
was bumped to 90cc, and a special dual-range four-speed gearbox with automatic clutch added flexibility over varied terrain.

Rough terrain makes suspension an integral part of the modern ATV; but, 30 years ago, Takeuchi’s original balloon
tires did the job alone. Because of their large footprint and low operating pressures, ATV tires exerted less pressure on
soft or sensitive terrain than the average human foot. Those tires let the vehicle go places others couldn’t, leaving little
or no damage in their passing, an advantage that remains a cornerstone in hundreds of modern ATV applications.

Though
it was primarily a recreational vehicle through the ’70s, commerce, more than sport, shaped the ATV’s future, as everything
from agriculture to industry to construction found new and innovative uses for these versatile vehicles. Honda engineers followed
their machines into the field, gathering data to guide the machine’s natural adaptation to a rapidly growing and amazingly
diverse market.

Since Honda’s original US90 debuted 30 years ago, ATVs have topped 6.5 million in sales worldwide,
and millions of recreational riders, farmers, ranchers, commercial business owners, search and rescue teams and forest service
people wonder how they ever got along without their ATVs. And it all began with the Honda US90.

1972 Honda ATC90 – National Motorcycle Museum

What began as back room tinkering at Honda in the late 1960’s became a product now representing over 30% of many motorcycle dealers’ unit sales. Honda dealers asked for a new product that would offer sales in the winter season, a time when sales were off in the northern United States. This original Honda US90, a three-wheeler with a flotation tire and wheel* design then used on some American made six-wheel machines, was the answer.
Originally dubbed the US90 due to America being its first market, the machine soon became the ATC90; the All Terrain Cycle. It borrowed the engine/ transmission unit from a Honda Trail 90, an 89cc OHC single with a dual range transmission, but used rope starting. The frame was pressed steel with rigid tubular forks and a live rear axle also with no suspension. The cushy tires absorbed a lot of surfaces irregularities and was easier on trails than knobbies. Where most bodywork on today’s ATVs is polypropylene, the ATC90 used a steel fuel tank and front fender and a fragile fiberglass seat/fender unit. Summer Yellow, Bright Red, Aquarius Blue and Parrot Green were sporty new color offerings; it was the 70’s.

In desert and rural areas the ATC90 was a hit; urban Honda shops sold fewer. Honda got enough patents that the other OEMs had difficulty competing unless they bought rights, which some did. But what appeared to be a stable machine invited young and unskilled operators who often got into trouble. The solid rear axle called for a lean to the outside to turn at low speeds, the under 40 inch wheelbase made wheelies come easily. Injuries started to rack up, as did lawsuits against Honda, hundreds of millions in lawsuits eventually, and the CPSC stepped in and banned three-wheelers.
But more stable four-wheeled ATV designs were already on the drawing boards of half a dozen manufacturers and even wider audiences were found in racing, agriculture, emergency, hunting, oil field service and more. What was a $600 plaything in 1970 is now a key piece of transport worldwide and has likely taken a big bite out of small tractor, golf cart and off-road motorcycle sales. Just about everywhere you look, a modern ATV is at work, or play, with some high performance and four passenger units topping $20,000.

This Honda ATC90 is part of the DIRT RIDING USA exhibit presented by J&P Cycles, and is one of only two ATVs in the entire National Motorcycle Museum. Take in almost 50 dirt bikes from Europe, England, Japan and America when you visit plus over 450 other motorcycles of all types, 1899 to present.
*If a tire puncture occurred on the early ATC90, the entire wheel tire unit might need replaced. In 1982 the retail price was $230, then about three to four times the price of a 4. 00 x 18 motorcycle tire! Cheaper demountable tire designs came in 1975.

Specifications:

  • Engine: 4-Stroke, Air-Cooled
  • Bore & Stroke: 50mm x 45.6mm
  • Displacement: 89.5cc
  • Compression Ratio: 7.5 : 1
  • Carburetor: 16mm Keihin
  • Primary: Gear Driven
  • Clutch: Semi-Automatic
  • Transmission: 4-Speed / Dual Range
  • Final Drive: Chain
  • Starting: Recoil Rope
  • Wheelbase: 39.8 Inches
  • Suspension: Rigid
  • Wheels/Tires: 22 x 11 x 3.5 Inches/ 2PSI
  • Brakes: Drum, Rear Only
  • Weight: 197 Pounds

ATC: 90% of Internet resources recruit fighters in the CIS from abroad rubezha-1023769366.html

ATC: 90% of Internet resources recruit fighters in the CIS from abroad

ATC: 90% of Internet resources recruit fighters in the CIS from abroad

An employee of the Antiterrorist Center explained that these data were based on analysis conducted by the Center at the beginning of this year 11/01/2017, Sputnik Tajikistan

2017-11-01T17:30+0500

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DUSHANBE, Nov 1 — Sputnik. Most of the Internet resources that recruit terrorists in the CIS countries operate from abroad, Anton Arefiev, an employee of the Anti-Terrorism Center (ATC) of the CIS member states, said.

“More than 90% of the Internet resources that recruit terrorist organizations in the CIS countries are hosted abroad,” Arefyev said.

He explained that these data were obtained from an analysis carried out by the Center earlier this year. “We analyzed about 1,800 Internet resources that are recognized as containing content of a terrorist or extremist nature,” the ATC employee said.

It also became known that the CSTO, the SCO RATS and the CIS Anti-Terrorism Center will soon sign a memorandum on cooperation in the fight against terrorism, extremism and separatism.

“Now we are very close, we have practically agreed on a trilateral document, and it will be signed in the very near future. This is a memorandum of cooperation,” Sergey Velichkin, adviser to the CSTO secretariat, told RIA Novosti on Wednesday.

According to him, the document will reflect the goals in the fight against terrorism, extremism and separatism, as well as the main forms of interaction, in particular, the holding of joint seminars, trainings, conferences, as well as the exchange of information.

According to the CSTO representative, the document on trilateral cooperation will increase “the weight and credibility of the international campaign to create a broad antiterrorist coalition.”

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03/06/2023 23:59
Last edit date: 02/21/2023 14:29
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