The Collaborative International Dictionary
Outrunner \Out*run"ner\, n.
An offshoot; a branch. [R.] ``Some outrunner of the river.''
--Lauson.
Wiktionary
n. An offshoot; a branch.
Wikipedia
The term outrunner refers to a type of brushless motor primarily used in electrically propelled, radio-controlled model aircraft.
This type of motor spins its outer shell around its windings, much like motors found in ordinary CD-ROM computer drives. In fact, CD-ROM motors are frequently rewound into brushless outrunner motors for small park flyer aircraft. Parts to aid in converting CD-ROM motors to aircraft use are commercially available.
Outrunners spin much slower than their inrunner counterparts with their more traditional layout (though still considerably faster than ferrite motors) while producing far more torque. This makes an outrunner an excellent choice for directly driving electric aircraft propellers since they eliminate the extra weight, complexity, inefficiency and noise of a gearbox.
Outrunner motors have quickly become popular and are now available in many sizes. They have also become popular in personal, electric transportation applications such as electric bikes and scooters due to their compact size and high efficiency.
Usage examples of "outrunner".
The troika raced down a dark avenue, raced quickly, and the excited outrunner kicked the front of the sleigh.
Shibo, though not an outrunner herself, was their friend and volunteered as well.
Family Bishop had no women hunters, though Jocelyn was an outrunner of sorts.
He saw the huntsman struggling with outrunners, and the field, urged on by the slope, crowding on the line.
She should come carried on the shoulders of stout chair veeks with outrunners and speakers-for-the-great in attendance.
Twelve carriers left of the fourteen that had come in, a cloud of riderships and dart-ships, bore away from station and into their two outrunners that were distance-blind and alone out there.
She could not keep her mind on it for she had to rise often to head off outrunners of flame that strayed across the stubble of the field.
At most a few will come join the outrunners and try to hang on our flanks, like those who chopped at the edge of our scoutmesh.
They were outrunners, trained for hunting and led by their own character to the passion of pursuit.
The outrunners of the Eika force had reached the bridge, and they gathered, forming a wall with their shields.
He saw the huntsman struggling with outrunners, and the field, urged on by the slope, crowding on the line.