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Sparrow P.T.M.

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Sparrow P.T.M. Specs
Sparrow Batteries
General:
  • Powered by 156 volts DC consisting of Thirteen 12 Volt batteries in series.
  • Three wheeled vehicle registers and insures as a motorcycle
  • 1350 pounds curb weight (approx 612 kg)
  • 61 inch (155 cm) wheelbase
  • 57 inch (145 cm) vehicle height
  • Top speed : 70 mph (110 kph)
  • Range : 30-60 miles (65-97 km)
  • Price: $13,900

Construction:

  • Composite mono-coque chassis
  • Front : Unequal length A-arm & torsion arm
  • Rear : Single sided swing arm
  • Cog-belt drive
  • 3 wheel disc brakes
  • Spring over hydraulic shocks (all around)
  • Specially designed tires & wheels to reduce rolling friction
Fabrication Safety Features:
  • Spherical design properties (like a motorcycle helmet!)
  • Layered composite & rigid foam
  • Battery weight is carried low and placed to provide excellent center of gravity/roll
  • Shoulder harness/seatbelt
  • Automotive Safety glass
  • Emergency/parking brake
Creature Comforts:
  • Power Windows
  • AM/FM CD stereo
  • Heater/Defroster/vents (Sorry, no A/C yet!)
  • Behind seat storage suitable for briefcase, laptop computer, 2-3 bags of groceries, etc.
  • Tilt wheel
  • Rack & pinion steering
Core drive system:
  • Brush DC Motor Continuous "E" Rating
  • 19 Hp / 14.2 KW | 20 Ft/Lbs torque
  • Built by : Advanced DC Motors Inc.
  • 13 Optima sealed, lead acid cell batteries (Valve regulated, starved electrolyte)
  • Battery lifespan : 2-4 years depending on operator adherence to recommendations
  • DC Power Systems Controller
  • On board high frequency battery charger included with your choice of either 220 Volt or 110 Volt System. 220 Volt System charges in 2 hours and 110 Volt System charges in 6 hours
  • Opportunity Charging!
Motor Controller Batteries
  • 13 Optima spiral cell technology D900M series batteries
  • Weight of each battery is 46 lbs
  • Total battery weight=598 lbs.
  • 60 amp hour at 20 hr. rate
  • 50 amp hour at 1 hr. rate
7.8 Kilowatt hour system calculated as follows:
13 Batteries x 50 Amps x 12 Volts = 7,800 Watts
Divided by 1,000 Watts per Kilowatt = 7.8 Kilowatts

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