A2A Simulations BONANZA ACCU-SIM V35B, Руководство пользователя

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THE PRATT & WHITNEY R-4360
Pratt & Whitney took this even further, creating the R-4360,
with 28 Cylinders (this engine is featured in the A2A Boeing
377 Stratocruiser). The cylinders were run so deep, it
became known as the “Corn Cob.” This is the most power-
ful piston aircraft engine to reach production. There are a
LOT of moving parts on this engine.
TORQUE VS HORSEPOWER
Torque is a measure of twisting force. If
you put a foot long wrench on a bolt, and
applied 1 pound of force at the handle, you
would be applying 1 foot-pound of torque
to that bolt. The moment a spark triggers
an explosion, and that piston is driven
down, that is the moment that piston is
creating torque, and using that torque to
twist the crankshaft. With a more pow-
erful explosion, comes more torque. The
more fuel and air that can be exploded,
the more torque. You can increase an
engine’s power by either making bigger
cylinders, adding more cylinders, or both.
Horsepower, on the other hand, is
the total power that engine is creat-
ing. Horsepower is calculated by com-
bining torque with speed (RPM). If an
engine can produce 500 foot pounds of
torque at 1,000 RPM and produce the
same amount of torque at 2,000 RPM,
then that engine is producing twice the
horsepower at 2,000 RPM than it is at
1,000 RPM. Torque is the twisting force. Horsepower is how
fast that twisting force is being applied.
If your airplane has a torque meter, keep that engine
torque within the limits or you can break internal compo-
nents. Typically, an engine produces the most torque in the
low to mid RPM range, and highest horsepower in the upper
RPM range.