Lake Sawyer Hawks RC Glossary

RC terms, acronyms, and club references explained.

Showing terms starting with F · 22 terms
Fades

The term used to describe data that does not reach the receiver. Dual Link minimizes this possibility.

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Failsafe

A PCM function which moves servos to a pre-programmed position if transmitter signal is lost or corrupted.

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Fairing

A component used to create a streamlined intersection between two or more other components or to cover a component to reduce drag.

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FHSS

Frequency Hopping Spread Spectrum. These systems usually transmit a narrow band signal and rapidly jump through a fixed set of frequencies, spending a few milliseconds on each freq...

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Field Charger

A fast battery charger designed to work from a 12-volt power source, such as a car battery.

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Figure 9

A loop that is terminated by a dive into the ground. This maneuver is entertaining for all pilots present except the one who performs the maneuver.

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Flaps

Hinged control surface located at the trailing edge of the wing inboard of the ailerons. The flaps are lowered to produce more aerodynamic lift from the wing, allowing a slower tak...

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Flare

A gradual increase in pitch angle to bleed off excess airspeed just before landing.

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Flight Box

A special box used to hold and transport all equipment used at the flying field.

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Flight Log

Flight Log is in reference to a screen that reports the signal and reception quality between your Spektrum Transmitter and telemetry capable receiver. This is reported to the user...

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Flight Modes

A function of your transmitter to change flight characteristics with the flip of a switch. This can be customized to control many aspects of flight, such as rates, control mixing a...

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Flight Pack (or Airborne Pack)

All of the radio equipment installed in the airplane, i.e., Receiver, Servos, Battery, Switch Harness.

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Flutter

A phenomenon whereby the elevator or aileron control surface begins to oscillate violently in flight. This can sometimes cause the surface to break away from the aircraft and cause...

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FM

Frequency Modulation. This describes the mode of transmission of radio signal from transmitter to receiver.

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Forward Programming

Spektrum technology that allows the configuration of Smart devices (receivers, etc.) wirelessly and directly from the transmitter. No separate computer or mobile device is needed f...

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Four Stroke (Four Cycle)

Although a 4-stroke engine has less power than a 2-stroke engine of comparable size, there are advantages to 4-stroke engines. They do not require a muffler and are often quieter t...

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Frame Loss

The simultaneous loss of information to both antennas in the aircraft system.

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Frame Rate

The time interval at which the servo data is updated on the receiver.

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Frequency

The specific channel or Radio Frequency spectrum that a radio broadcast on. In a traditional RC radio, the transmission crystal resonates when voltage is applied; the rate of this...

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Frequency Control

The FCC has allowed the 72MHz band to be used for R/C aircraft operations. This band is divided up into many different channels in which you can choose a radio system. You should b...

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Frequency Module

A frequency module plugs into the transmitter and enables you to change the channel number your radio broadcasts on.

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Fuselage

The main body of the airplane.

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