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http://www.controleng.com/article/CA6631596.html

Successful load testing of 36.5 MW superconductor ship propulsion motor
American Superconductor Corporation and Northrop Grumman completed
successful full-power testing of the first 36.5 MW (49,000 hp) high-
temperature superconductor (HTS) ship propulsion motor. See videos, history.
-- Control Engineering, 1/23/2009
Some HTS history HTS magnetic bearings
HTS wire developments


Washington, DC – A new era in ship propulsion technology was launched as
American Superconductor Corporation and Northrop Grumman announced the
successful completion of full-power testing of the world’s first 36.5 MW (
49,000 hp) high-temperature superconductor (HTS) ship propulsion motor at
the U.S. Navy’s Integrated Power System Land-Based Test Site in
Philadelphia. The first successful full-power test of an electric propulsion
motor sized for a large Navy combatant, at 36.5 MW, doubled the Navy’s
power rating test record.

American Superconductor videos tell how high temperature superconducting
motors are used for ship propulsion.
Designed and built under a contract from the Office of Naval Research, the
system points to HTS motors as the primary propulsion technology for future
Navy all-electric ships and submarines. Naval Sea Systems Command (NAVSEA)
funded and led testing.

Incorporating coils of HTS wire that carry 150 times the power of similar-
sized copper wire, the motor is less than half the size of conventional
motors used on the first two DDG-1000 hulls and reduces ship weight by
approximately 200 metric tons. New ships will be more fuel-efficient and can
free up space for other uses.

“The successful load test of our HTS motor marks the beginning of a new era
in ship propulsion technology,” said Dan McGahn, senior vice president and
general manager of AMSC Superconductors. “This motor provides the U.S.
Navy with a truly transformational capability relative to size, stealth,
endurance and survivability, providing our Navy with a clear performance
advantage for years to come. We are grateful for the steadfast support from
the Office of Naval Research, Naval Sea Systems Command and the Naval
Surface Warfare Center.”

AMSC and Northrop Grumman shared the work under a business agreement, with
AMSC serving as prime contractor for research and development. The
superconductor motors are now ready for deployment:

“HTS technology offers the Navy a power-dense propulsion solution, and it
will save money,” said Donna Potter, director of the Development &
Integration business at Northrop Grumman’s Sunnyvale, CA-based Marine
Systems business unit. “Whether the Navy uses the size and weight savings
to make ships lighter and more fuel-efficient, or to pack more capabilities
onto fewer ships, the end result is the same: more capability for the
warfighter at less cost to the taxpayer.”http://www.controleng.com/article/CA6631596.html

Successful load testing of 36.5 MW superconductor ship propulsion motor
American Superconductor Corporation and Northrop Grumman completed
successful full-power testing of the first 36.5 MW (49,000 hp) high-
temperature superconductor (HTS) ship propulsion motor. See videos, history.
-- Control Engineering, 1/23/2009
Some HTS history HTS magnetic bearings
HTS wire developments


Washington, DC – A new era in ship propulsion technology was launched as
American Superconductor Corporation and Northrop Grumman announced the
successful completion of full-power testing of the world’s first 36.5 MW (
49,000 hp) high-temperature superconductor (HTS) ship propulsion motor at
the U.S. Navy’s Integrated Power System Land-Based Test Site in
Philadelphia. The first successful full-power test of an electric propulsion
motor sized for a large Navy combatant, at 36.5 MW, doubled the Navy’s
power rating test record.

American Superconductor videos tell how high temperature superconducting
motors are used for ship propulsion.
Designed and built under a contract from the Office of Naval Research, the
system points to HTS motors as the primary propulsion technology for future
Navy all-electric ships and submarines. Naval Sea Systems Command (NAVSEA)
funded and led testing.

Incorporating coils of HTS wire that carry 150 times the power of similar-
sized copper wire, the motor is less than half the size of conventional
motors used on the first two DDG-1000 hulls and reduces ship weight by
approximately 200 metric tons. New ships will be more fuel-efficient and can
free up space for other uses.

“The successful load test of our HTS motor marks the beginning of a new era
in ship propulsion technology,” said Dan McGahn, senior vice president and
general manager of AMSC Superconductors. “This motor provides the U.S.
Navy with a truly transformational capability relative to size, stealth,
endurance and survivability, providing our Navy with a clear performance
advantage for years to come. We are grateful for the steadfast support from
the Office of Naval Research, Naval Sea Systems Command and the Naval
Surface Warfare Center.”

AMSC and Northrop Grumman shared the work under a business agreement, with
AMSC serving as prime contractor for research and development. The
superconductor motors are now ready for deployment:

“HTS technology offers the Navy a power-dense propulsion solution, and it
will save money,” said Donna Potter, director of the Development &
Integration business at Northrop Grumman’s Sunnyvale, CA-based Marine
Systems business unit. “Whether the Navy uses the size and weight savings
to make ships lighter and more fuel-efficient, or to pack more capabilities
onto fewer ships, the end result is the same: more capability for the
warfighter at less cost to the taxpayer.”