Propeller

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Synopsis: Transport & travel: Air travel: Propeller:

The engine and propeller or power plant is the same on every plane Mangold said. An airplane's engine sets certain limits on how fast a pilot can go

because it controls the amount of torque (the work done by the engine that turns the propeller)

and thrust (force created by the propeller) that a pilot has to work with in the air he explained.

but transferring the power function to an engine and propeller something no bird ever possessed.

and its rear propeller pushes it beneath the surface. Out of sight the autonomous underwater vehicle (AUV) an oceanographic workhorse called a Remus begins gliding through the lagoon in a pattern that resembles the long linear passes of a mowed lawn.

The front motor and propellers have broken away from the body of the plane so that it now resembles a chewed-off cigar or the burnt end of a firecracker.

The high-speed reconnaissance floatplane had a single engine contra-rotating propellers and a center pontoon that could be jettisoned during an attack.

and the reef has crept into the propellers and the engine; a large bulbous coral head has taken up occupancy in the cockpit.

and a push propeller are the opposite of stealth. Why? Because they stick out from the drone in a way that catches radio waves

and it's propelled by an integrated jet engine not an exterior propeller. The X-47b carries weapons in two internal bays.

Guiler and Vaneck aim to replace the propellers on their quadrotor with flapping wings. The Instanteye is far better at recovering from wind gusts

but its propellers can still get tangled in branches or power lines. We wanted to bring something to the field fast Guiler says.

Researchers received funding from the National Science Foundation and Wake Forest's Center for Energy Environment and Sustainabilitydrones Deliver a Bird's eye Viewone of the researchers'robots a copter drone relies on eight small propeller units

and propeller to fly up to 50 mph for over an hour. We can map much more territory with the plane

Under the theory grains are spun propeller-like by photons. Their alignment is modified by magnetic fields which orients them with respect to the field telling an observer its direction.

and the condition of its propellers cameras and other sensors throughout a mission and take proactive measures--for example rerouting to a charging station--if needed.

and mission-level or health planning such as the condition of a vehicle's propellers cameras and fuel levels.

In this regard he and his colleagues used POMDP to generate a tree of possible health outcomes including fuel levels and the status of sensors and propellers.

Its flight feature depends on a large, stowable glider wing and a rear-mounted propellor for thrust.

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