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RCUniverse Glossary





Total Words: 412
Words Found in Search: 37
Viewing Records: 1 - 30
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WordDefinition
Tail Boom
Long arm extending from the main frame of the helicopter which holds the tail rotor. It is used for anti-torque.


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Added by: HeyRobi
Tail Dragger
An airplane with a tail wheel instead of a nose wheel.


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See also: Tricycle Gear Added by: w8ye
Tail Rotor
This controls the yaw motion of a helicopter by providing thrust to counteract the torque generated by the main rotor.


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See also: Yaw Axis Added by: mkranitz
Tailskid
Sometimes used as an alternative to a tail wheel, used on tail-dragger style landing gear as usually a metal rod that creates friction with the ground while taxing. They are usually not steerable but provide straighter tracking while taxing or takeoff.


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Added by: Ryguy
Tamiya plug
A type of white electrical connector usually used to connect a battery to a speed controller. It comes stock on many ESC and batteries.


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See also: ESC | Speed Controller Added by: speenair
Taper
In referance to a airplane wing planform no taper is where the leading edge and trailing edge are parallel from the wing root to the tip.

"Single taper" is where the leading edge or trailing edge tapers from the wing root to the tip "double taper" is where the both leading and trailng edges taper from the root to the tip.

Also known as "wing planform" or "wing taper"


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See also: Wing Planform Added by: dalolyn
TDC
Abreviation for Top Dead Center. When a piston is at the very top of it's stroke.


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Added by: jefx
Thrift Store Repair
So you're out at the field where you've sustained a little damage or just broken a former from a really hard blender. Why drive to the local hobby shop when you can just walk over to the Thrift store (dumpster) and get yourself the perfect piece of second hand light ply. Who cares if its still part of a severed wing?!


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Added by: marcv
Throttle
The throttle control on any aircraft or vehicle refers to the control over the power plant. More "throttle" means more power from the power plant and visa versa.


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Added by: mkranitz
Throttle Return Spring
This the spring found on nitro vehicles that runs from the carb throttle arm to a fixed location on the chassis or engine. This is a type of failsafe made to return the throttle to idle on nitro vehicles in the event that the throttle linkage was to come loose from the servo. It is not meant to keep the vehicle from running away in the case of signal losses though.


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Added by: Bash-m-up
Thrust
The force on an object which either pulls or pushes the object in a direction opposite the thrust direction (vector)


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Added by: mkranitz
Thrust Washer
A washer applied between a drive washer and the crankcase to reduce friction.


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Added by: Rob40
Tic-Toc Maneuver
This maneuver is done with the tail pointing straight down. The helicopter is "rocked" back and forth from -45% to +45 (from 90 degree vertical) using positive and negative pitch respectively.


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Added by: mkranitz
Tip Stall
A tip stall occurs when the very tip of one wing fails to sustain lift, causing the airplane to roll in the direction of the stalled wing. Tip stalls usually occur on landing approaches or very low speeds.


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See also: Washout | Roll Axis Added by: mkranitz
Toe Angle
The toe angle of a car is the angle of the tires from 0 degrees when viewing the car or truck from above. A "toe in" refers to wheels that are angled slightly in when the steering mechanism is neutral. Slight toe angles provide stability, but too much creates friction and is inefficient. Toe-out on front wheels provides more responsive steering but less stability. Toe-in on rear wheels provide stability and most cars are manufacturered that way.


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Added by: mkranitz
Torque
The moment of a force; the measure of a force's tendency to produce torsion and rotation about an axis, equal to the vector product of the radius vector from the axis of rotation to the point of application of the force and the force vector.


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Added by: chadchm8
Torque Roll
Aircraft sits in the air, pointing vertically. Using the power of the engine the aircraft is "hovered". Utilising the torque of the engine (with help from the ailerons sometimes) the model rotates clockwise around its axis.

Lots of movement and power are needed to perform this maneuver, but the results are very impressive.


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See also: 3D Added by: Ian.W
Torsen Differential
Torsen is short for "torque sensing" and is purely a mechanical device. A TORSEN has worm gears which rotate in one direction. If you try to input a torque on the output gear it will lock up. That is the "trick" in the Torsen.


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Added by: Nitro Fumes
Touring Car
Touring cars are standard street cars that are modified for racing (e.g. Camaro). There are hundreds of R/C touring cars available on the market. Most R/C versions are all-wheel drive.


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Added by: mkranitz
TQ
Top Qualifier, or the person that wins the qualifying race (see qualifier)


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See also: Qualifier Added by: Savage_OWNS
Track Width
The distance between the midline of each tire measured on either the front or the rear set of wheels.


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See also: Wheel Offset Added by: mkranitz
Tracking
To set both blades of a helicopter to rotate at the same level.


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Added by: RCer22
Trailing Throttle Oversteer
It is a controlled balance between loose (oversteer) and push (understeer). As you enter a turn you get off the throttle a little bit because your car will push into the turn. When you get off the throttle this allows the front tires to bite better. Then the rear end gets a little loose and wants to swing out. So this is where you "throttle steer". You brip the throttle to get the correct balance between loose and push generally kepping the car a little loose so you can do "trailing throttle oversteer" with control. This is the fastest way around the turn.


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Added by: Nitro Fumes
Trainer
Trainer is commonly refered to as a type of Plane suitable for learning how to fly with. The word Trainer also refers to someone who is qualified to teach within a particular area or field of a Hobby.


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Added by: ckangaroo70
Trainer Cord
A cord connecting a primary to a secondary transmitter. Used primarily for instructor/student flights. An instructor can hold a switch to pass control of an aircraft to the student pilot. Upon releasing the switch, the instructor's transmitter resumes control.


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Added by: Rob40
Transitional lift
The extra lift that occurs as a helicopter starts transitions from hover to, especially forward, flight. The lift increases because the main rotor efficiency improves as it begins to cut into relatively undisturbed air.


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Added by: bbstrikesagain
Transom
The flat, sometimes slightly curved, back end of a boat's hull. Sometimes holds a boat's outboard motor in place.


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Added by: dauntlessfan
Tricycle Gear
The landing gear on a plane with one nose gear, and two main gear. As opposed to a taildragger.


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See also: Landing Gear | Tail Dragger Added by: Flight Risk
Trimming
To make very small adjustments from transmitter on any servo which controls any control surface.


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Added by: Turk1
True
Verb - The act of making car tires perfectly round, or as close to perfectly round as possible: "to true a tire."

Adjective - A tire that is perfectly round: "a true tire."

Most tires are not perfectly round, due to a high spot on the tire. This condition is refered to as out-of-round. By gently shaving the high spot off of the tire -- to true the tire -- the out-of-roundness is corrected.


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Added by: Philster
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