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Springtail EFV-4A Preliminary Specifications and
Performance
Overview
Currently in use, the Springtail EFV-4A is a fourth generation single
engine powered-lift research vehicle. This craft was
built for the express purpose of testing and proving
our
core technology. This was accomplished on November
5, 2003 when transition to forward flight was achieved.
This vehicle is still in service and is being employed
as a test bed for further enhancements and refinements
to the technology. We are currently using this vehicle
for expansion of the flight envelope.
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Springtail Exoskeleton Flying Vehicle
(EFV-4A)
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Engine: |
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Type |
One
118 hp Rotary Engine |
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Specifications: |
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Height |
8.3 feet
(2.5 meters) |
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Width (duct assembly) |
8.9
feet (2.7 meters) |
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Width (landing gear) |
3.6
feet (1.1 meters) |
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Depth (front to rear) |
5.2
feet (1.6 meters) |
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Empty Weight |
368
pounds (167 kilograms) |
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Normal Loaded Weight |
604 pounds
(274 kilograms) |
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Maximum Takeoff Weight |
706
pounds (320 kilograms) |
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Maximum Payload (with full fuel) |
225 pounds
(102 kilograms) |
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Fuel
Capacity |
10.6 gallons
(40 liters) |
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Performance: |
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Maximum Speed |
60 mph
(97 km/h) |
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Cruising Speed |
50 mph
(80
km/h) |
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Loiter Speed |
17 mph
(27 km/h) |
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Hover Ceiling |
3,600 feet (1,097 meters) |
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Range |
73 miles
(117 kilometers) |
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Endurance |
1.5
hours |
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Rate
of Climb |
1,821 feet/minute
(555 meters/minute) |
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