Propolsions Flashcards
what is work
force x distance
most engines are what type?
auto cycle 4 stroke
Greater piston displacement…..
the greater the horsepower
total displacement of the engine
area of cylinders x # of cylinders
what are the engine operating principles
pressure volume temperature
manifold pressure depends on what
ambient air pressure
prober lubricant for engine break in?
mineral oil
most common oil used in engines
Ashly’s dispersant oil
what would best oil system for aerobatic flight?
dry sump oil system
the pilot has control over the airflow over the engine by using what?
Cow Flaps
when the crankshaft turns 360 degrees how many does the camshaft turn?
180 degrees
as long as the oil film remains unbroken metallic friction is replaced by a
internal fluid friction of a lubricant oil or film
the viscosity of oil is affected by
Temperature
the temperature at which oil vapor can sustain a flame?
It’s Fire Point
comparing oil to its weight in water is its
specific gravity
lowest temperature at which oil can float
pour point
a wet sump oil system can have a higher operating temperature due to being closer to the engine? TF
true
Thermal Couple
two similar metals, generally Constantan and iron, connected by wiring to an indicating system
what are the purpose of fins on engine
radiates heat away from cylinder walls
what mixture can cool an engine
a rich mixture
