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[Music]

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[Music]

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[Music]
 

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[Music]
the sterling engine is recognized by the

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the sterling engine is recognized by the
 

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the sterling engine is recognized by the
department of energy as a promising

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department of energy as a promising
 

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department of energy as a promising
alternative to the internal combustion

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alternative to the internal combustion
 

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alternative to the internal combustion
engine

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engine
 

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engine
an external combustion engine the

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an external combustion engine the
 

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an external combustion engine the
sterling burns any fuel creating heat

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sterling burns any fuel creating heat
 

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sterling burns any fuel creating heat
for the cylinder

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for the cylinder
 

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for the cylinder
the heat itself powers the engine

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the heat itself powers the engine
 

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the heat itself powers the engine
any fuel can be used liquid solid or gas

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any fuel can be used liquid solid or gas
 

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any fuel can be used liquid solid or gas
the sterling even operates on heat from

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the sterling even operates on heat from
 

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the sterling even operates on heat from
nuclear and solar energy

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nuclear and solar energy
 

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nuclear and solar energy
combustion is continuous and complete

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combustion is continuous and complete
 

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combustion is continuous and complete
quiet and clean

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quiet and clean
 

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quiet and clean
ongoing research in aeronautical and

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ongoing research in aeronautical and
 

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ongoing research in aeronautical and
automotive engines at the nasa lewis

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automotive engines at the nasa lewis
 

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automotive engines at the nasa lewis
research center in cleveland ohio

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research center in cleveland ohio
 

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research center in cleveland ohio
indicates the sterling may be the engine

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indicates the sterling may be the engine
 

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indicates the sterling may be the engine
of the future

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of the future
 

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of the future
feasibility studies by manufacturers

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feasibility studies by manufacturers
 

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feasibility studies by manufacturers
indicate the technology to produce

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indicate the technology to produce
 

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indicate the technology to produce
sterling engines commercially exists

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sterling engines commercially exists
 

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sterling engines commercially exists
today

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today
 

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today
value engineering studies have shown the

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value engineering studies have shown the
 

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value engineering studies have shown the
sterling can be manufactured in low

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sterling can be manufactured in low
 

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sterling can be manufactured in low
production volumes at a competitive cost

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production volumes at a competitive cost
 

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production volumes at a competitive cost
the engine can be built to provide power

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the engine can be built to provide power
 

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the engine can be built to provide power
for both propulsion and stationary

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for both propulsion and stationary
 

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for both propulsion and stationary
applications

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applications
 

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applications
a sterling engine developed by

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a sterling engine developed by
 

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a sterling engine developed by
mechanical technology incorporated for

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mechanical technology incorporated for
 

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mechanical technology incorporated for
nasa lewis research center and the

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nasa lewis research center and the
 

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nasa lewis research center and the
department of energy has been evaluated

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department of energy has been evaluated
 

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department of energy has been evaluated
by a nasa technology utilization program

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by a nasa technology utilization program
 

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by a nasa technology utilization program
under actual driving conditions

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under actual driving conditions
 

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under actual driving conditions
the sterling engine was installed in an

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the sterling engine was installed in an
 

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the sterling engine was installed in an
air force van

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air force van
 

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air force van
the van's original 150 horsepower diesel

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the van's original 150 horsepower diesel
 

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the van's original 150 horsepower diesel
engine was replaced by a 75 horsepower

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engine was replaced by a 75 horsepower
 

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engine was replaced by a 75 horsepower
sterling and assigned actual duty

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sterling and assigned actual duty
 

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sterling and assigned actual duty
service at langley air force base in

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service at langley air force base in
 

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service at langley air force base in
virginia

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virginia
 

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virginia
air force operators drove the van

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air force operators drove the van
 

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air force operators drove the van
throughout the test serving 10 to 15

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throughout the test serving 10 to 15
 

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throughout the test serving 10 to 15
aircraft on a flight line driving from

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aircraft on a flight line driving from
 

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aircraft on a flight line driving from
base to aircraft moving about the field

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base to aircraft moving about the field
 

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base to aircraft moving about the field
in and around aircraft

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in and around aircraft
 

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in and around aircraft
stop and go

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stop and go
 

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stop and go
hauling personnel and equipment

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hauling personnel and equipment
 

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hauling personnel and equipment
performance was monitored by special

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performance was monitored by special
 

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performance was monitored by special
equipment mounted in the van

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equipment mounted in the van
 

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equipment mounted in the van
engine speed vehicle speed and miles

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engine speed vehicle speed and miles
 

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engine speed vehicle speed and miles
accumulated were recorded daily

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accumulated were recorded daily
 

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accumulated were recorded daily
during this air force mission three

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during this air force mission three
 

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during this air force mission three
different fuels were used

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different fuels were used
 

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different fuels were used
unleaded gasoline

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unleaded gasoline
 

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unleaded gasoline
jp4 aircraft fuel

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jp4 aircraft fuel
 

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jp4 aircraft fuel
and diesel fuel

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and diesel fuel
 

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and diesel fuel
the van functioned normally during the

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the van functioned normally during the
 

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the van functioned normally during the
one-year evaluation period on whatever

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one-year evaluation period on whatever
 

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one-year evaluation period on whatever
fuel was available

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fuel was available
 

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fuel was available
the sterling's high torque capability at

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the sterling's high torque capability at
 

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the sterling's high torque capability at
low speeds enabled towing of all heavy

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low speeds enabled towing of all heavy
 

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low speeds enabled towing of all heavy
support equipment

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support equipment
 

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support equipment
after fourteen hundred hours and seven

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after fourteen hundred hours and seven
 

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after fourteen hundred hours and seven
thousand miles results showed improved

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thousand miles results showed improved
 

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thousand miles results showed improved
fuel economy

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fuel economy
 

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fuel economy
a second vehicle a standard air force

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a second vehicle a standard air force
 

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a second vehicle a standard air force
truck was also evaluated

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truck was also evaluated
 

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truck was also evaluated
the truck's original 95 horsepower

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the truck's original 95 horsepower
 

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the truck's original 95 horsepower
internal combustion engine was replaced

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internal combustion engine was replaced
 

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internal combustion engine was replaced
by a 75 horsepower sterling engine

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by a 75 horsepower sterling engine
 

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by a 75 horsepower sterling engine
tests were conducted over a one-year

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tests were conducted over a one-year
 

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tests were conducted over a one-year
period for one thousand hours and

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period for one thousand hours and
 

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period for one thousand hours and
nineteen thousand miles of open highway

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nineteen thousand miles of open highway
 

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nineteen thousand miles of open highway
and city streets on rough and rural

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and city streets on rough and rural
 

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and city streets on rough and rural
roads and in normal traffic in a variety

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roads and in normal traffic in a variety
 

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roads and in normal traffic in a variety
of environments

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in moderate climate the norfolk virginia

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in moderate climate the norfolk virginia
 

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in moderate climate the norfolk virginia
area an expediter mission at langley air

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area an expediter mission at langley air
 

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area an expediter mission at langley air
force base

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hot moist sea air environment a general

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hot moist sea air environment a general
 

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hot moist sea air environment a general
transportation assignment at eglin air

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transportation assignment at eglin air
 

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transportation assignment at eglin air
force base florida

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hot dry environment base taxi service at

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hot dry environment base taxi service at
 

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hot dry environment base taxi service at
randolph air force base texas

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in the north a base supply mission at

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in the north a base supply mission at
 

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in the north a base supply mission at
offutt air force base nebraska

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in addition the truck was driven from

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in addition the truck was driven from
 

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in addition the truck was driven from
texas to washington dc

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texas to washington dc
 

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texas to washington dc
a distance of 1600 miles the entire trip

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a distance of 1600 miles the entire trip
 

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a distance of 1600 miles the entire trip
averaged over 50 miles per hour

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187
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the sterling consistently delivered more

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the sterling consistently delivered more
 

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the sterling consistently delivered more
miles per gallon

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miles per gallon
 

191
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miles per gallon
current engines are a major contributor

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current engines are a major contributor
 

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current engines are a major contributor
to the severe atmospheric pollution in

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to the severe atmospheric pollution in
 

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to the severe atmospheric pollution in
our cities today

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our cities today
 

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our cities today
exhaust emissions were evaluated and the

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exhaust emissions were evaluated and the
 

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exhaust emissions were evaluated and the
sterling engine met federal emissions

200
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sterling engine met federal emissions
 

201
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sterling engine met federal emissions
standards

202
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standards
 

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standards
no catalytic converter or particulate

204
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no catalytic converter or particulate
 

205
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no catalytic converter or particulate
trap was needed

206
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trap was needed
 

207
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trap was needed
the exhaust is cool and clean

208
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the exhaust is cool and clean
 

209
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the exhaust is cool and clean
the sterling engine can help reduce

210
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the sterling engine can help reduce
 

211
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the sterling engine can help reduce
these pollutants to meet even the most

212
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these pollutants to meet even the most
 

213
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these pollutants to meet even the most
stringent california standards

214
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stringent california standards
 

215
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stringent california standards
also several maintenance requirements

216
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also several maintenance requirements
 

217
00:05:08,800 --> 00:05:11,670
also several maintenance requirements
were eliminated with only one spark plug

218
00:05:11,670 --> 00:05:11,680
were eliminated with only one spark plug
 

219
00:05:11,680 --> 00:05:13,270
were eliminated with only one spark plug
to start combustion

220
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to start combustion
 

221
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to start combustion
no carburetor

222
00:05:14,870 --> 00:05:14,880
no carburetor
 

223
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no carburetor
no catalytic converter and no muffler

224
00:05:19,029 --> 00:05:19,039
no catalytic converter and no muffler
 

225
00:05:19,039 --> 00:05:21,189
no catalytic converter and no muffler
because the engine oil is not exposed to

226
00:05:21,189 --> 00:05:21,199
because the engine oil is not exposed to
 

227
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because the engine oil is not exposed to
combustion products it stayed clean and

228
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combustion products it stayed clean and
 

229
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combustion products it stayed clean and
uncontaminated throughout the test

230
00:05:26,390 --> 00:05:26,400
uncontaminated throughout the test
 

231
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uncontaminated throughout the test
eliminating the oil changes

232
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eliminating the oil changes
 

233
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eliminating the oil changes
the sterling engine offers increased

234
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the sterling engine offers increased
 

235
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the sterling engine offers increased
fuel economy

236
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fuel economy
 

237
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fuel economy
multi-fuel flexibility and reduced life

238
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multi-fuel flexibility and reduced life
 

239
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multi-fuel flexibility and reduced life
cycle costs

240
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cycle costs
 

241
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cycle costs
its economy and efficiency of operation

242
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its economy and efficiency of operation
 

243
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its economy and efficiency of operation
are being demonstrated

244
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are being demonstrated
 

245
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are being demonstrated
the sterling engine appears ready for

246
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the sterling engine appears ready for
 

247
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the sterling engine appears ready for
market

248
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market
 

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market
nasa's technical utilization division

250
00:05:49,430 --> 00:05:49,440
nasa's technical utilization division
 

251
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nasa's technical utilization division
continues to work with u.s industry

252
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continues to work with u.s industry
 

253
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continues to work with u.s industry
providing data to manufacturers and end

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providing data to manufacturers and end
 

255
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providing data to manufacturers and end
users answering the questions on

256
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users answering the questions on
 

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users answering the questions on
sterling technology

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sterling technology
 

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sterling technology
and the technology is available now

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and the technology is available now
 

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and the technology is available now
to build the power plant of the future

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to build the power plant of the future
 

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to build the power plant of the future
today

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today
 

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today
power for america on the land

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power for america on the land
 

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power for america on the land
and in space

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and in space
 

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and in space
the sterling engine

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the sterling engine
 

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the sterling engine
an alternative power plant of the future

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[Music]

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[Music]

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[Music]

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now