The U.S military makes stealth motorcycles that allows soldiers to be able to sneak up quickly without known enemies. This motorcycle only emits 55 decibels, or like the sound emitted by electric toothbrush.
Two-wheeled vehicle military is capable of reaching 80 miles per hour. This motorcycle sound is silent because the electric drive.
Stealth Motorcycles or called the SilentHawk uses two-wheel drive system to improve traction on gravel roads, sand, or other challenging trails. Slim body dimensions have the benefit of being able to bulldoze the forest path, where other military heavy vehicles can't get through it.
Alex Dzwill, Chief Engineer for the project SilenHawk of the company Logos Technologies, say, with standard skills, all the soldiers could use this motorcycle in any field.
However, SilentHawk has limitations, with battery power only lasted two hours. Therefore, this motorcycle experience modification again, until finally using hybrid engines, which can use all types of fuel, such as gasoline, aftur, kerosene, or diesel.
The Silent Hawk’s electric system is from Alta Motors. “They have purpose built this battery pack to be of higher density … They have an active cooling system in it that insures that even if there is a cell failure that one cell will fail with no explosion. It will remain operational,” said Dzwill. It’s very similar same multi-cell system in today’s Tesla cars.
“Our system is a bigger brother,” said Jean-Marc Henriette, chief engineer at LSA Autonomy, which makes the Nightmare. “We’ve got a much bigger bike for the same type of requirements.” The Nightmare weighs in at about 400 pounds, compared to 350-pound Silent Hawk. Both bikes feature a front-wheel motor and rear motor but the Nightmare boasts a larger horsepower, 17 in front and 135 in back. The Nightmare averages around 13 kilowatts in generated power, versus 7.5 kilowatts for the Silent Hawk. Both have the ability to run external devices, too.
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