Four Stroke (Four Cycle)

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 than most 2- strokes are with a muffler. They can swing a bigger prop than the same size 2- stroke engine. This is an asset in the large, slow-flying aerobatic and scale models where 4- stroke engines are usually mounted. Lastly, the fuel economy is better.

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Flight Pack - Airborne Pack

Flight Pack or Airborne Pack : All of the radio equipment installed in the airplane, i.e., Receiver, Servos, Battery, Switch Harness.

This is not a similar thing to the flight box, rather it refers to all the radio equipment that is used in an RC aircraft during flight. This includes most importantly the receiver, but also the servos/ESC, flight pack battery/BEC and the harness. The transmitter is outwith the craft and so not considered part of the flight pack, despite its involvement.

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Flight Box

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

Flight Box

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FHSS - (Frequency Hopping Spread Spectrum)

FHSS (Frequency Hopping Spread Spectrum) : 

 — A 2.4GHz radio system which switches from one "free" frequency to another every few milliseconds. While jumping from one to the other frequency, you are not spending much time on that frequency and this keeps out interference. See also: DSSS.

Wikipedia:
Frequency-hopping spread spectrum (FHSS) is a method of transmitting radio signals by rapidly switching a carrier among many frequency channels, using a pseudorandom sequence known to both transmitter and receiver. It is utilized as a multiple access method in the frequency-hopping code division multiple access (FH-CDMA) scheme.

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DSSS (Direct Sequence Spread Spectrum)

A 2.4GHz radio system which selects one (or two) of the available "free" frequencies and transmits only on the one(s) chosen. Like FHSS (Frequency Hopping Spread Spectrum) systems, it is resistant to electrical noise. See also: FHSS.

Wikipedia: In telecommunications, direct-sequence spread spectrum (DSSS) is a modulation technique. As with other spread spectrum technologies, the transmitted signal takes up more bandwidth than the information signal that modulates the carrier or broadcast frequency. The name 'spread spectrum' comes from the fact that the carrier signals occur over the full bandwidth (spectrum) of a device's transmitting frequency. Certain IEEE 802.11 standards use DSSS signaling.

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DSSS - Direct Sequence Spread Spectrum
Direct Sequence Spread Spectrum (DSSS) is a spread spectrum technique whereby the original data signal is multiplied with a pseudo random noise spreading code. This spreading code has a higher chip rate (this the bitrate of the code), which results in a wideband time continiuous scrambled signal.

Direct Sequence Spread Spectrum
DSSS significantly improves protection against interfering (or jamming) signals, especially narrowband and makes the signal less noticeable. It also provides security of transmission if the code is not known to the public. These reasons make DSSS very popular by the military. In fact, DSSS was first used in the 1940s by the military.

DSSS can also be used as a multiple access technique, whereby several different pseudo random spreading codes are being used simultaneously. This multiple access technique is better known as Direct Sequence CDMA.
DSSS is e.g. used in IEEE 802.11b and Zigbee.

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Electric Starter

Electric Starter:

A hand-held electric motor used for starting a model airplane engine. Usually powered by a 12-volt battery.

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T-REX 700E F3C V3 Super Combo RH70E08XW

T-REX 700E F3C V3 Super Combo RH70E08XW R/C Helicopter

Specification(T-REX 700E F3C V3) :

1. Brand new all metal high precision and high rigidity main blade assembly, providing 3 positive/negative deltas andnumerous Bell & Hiller mixing ratios.
2. F3C and beginner pilots will benefit from the head’s higher control resolution as well as stability level, satisfying the need of both highly stable static categories as well as precision aerobatic categories.
3. Innovative sliding battery tray rails imbedded into the 3K side frames, with patented spring loaded latching mechanism, allowing for quick battery access as well as battery protection.
4. Top mounted motor base bringing the motor's center of gravity closer to rotating disc,allowing blade drafts to cool the motor effectively.
5. Motor mount consists of third bearing block to provide motor shaft support, effectively reduce torque induced shifts, and minimize gear striping issue.
6. Utilizes highest spec CNC modue-1 helical main gear, with highest load tolerance and lowest noise.
7. Top mounted ESC platform to take advantage of main blades airflow for effective cooling.
8. New lightweight H-shaped electric device retention system for protection, as well as ergonomically correct design to simplify operation.
9. Brand new tail gear box, with aesthetically pleasing material and improved maintenance.
10. Total pitch range of +13~-13 degrees,for the ultimate explosive power.
11. High torque rated one way bearing base.
12. High precision bearing supported dual push point rudder control design.
13. High speed rated thrust bearings incorporated into tail blade grips.
14. Dual 3K carbon plate side frame design for ease of maintenance and resistance to torque induced flex.
15. New lightweight landing gears.
16. High quality painted fiberglass canopy with 4-point quick release mounts.

Users must have a certain concept of security to operate the R/C helicopters.

Be sure to read and comply with related safety notes of instruction manual before flying. 

T-REX 700 E F3C V3 Product:

Focus Shot 1(Newly designed main rotor head assembly)

Focus Shot 2 (Innovative sliding battery tray with patented springloaded lacthing mechanism) 

Focus Shot 3(6061-T6 Aluminum alloy material and CNC processed metal battery mount)

Focus Shot 4 (Utilizes highest spec CNC Modue-1 helical main gear) 

Focus Shot 5 (Precision CNC machined aluminum pieces including elevator servo mount)

Focus Shot 6 (Precision CNC machined aluminum pieces including rudderr servo mount)

Focus Shot 7 (New carbon tail control pushrod assembly)

Focus Shot 8 (High quality new tail gearbox design, combined with new dual point mounted tail pitch control assembly to minimize slops and increase rudder control precision)

Focus Shot 9 (Utilizes newly developed, highest spec and superior anti-wear material to increase the overall strength and durability for torque tube drive gear. Effectively minimize gear striping and crash damage)

Focus Shot10(750MX(450KV) high efficiency, high torque brushless motor) 

Focus Shot 11 (F3C 700mm carbon main blades)

Focus Shot 12 (DS615 digital servos with CNC aluminum servo horns)

Focus Shot 13 (DS655 Digital servo) 

Focus Shot 14 (GP900 Head Lock Gyro) 

Focus Shot 15 (Castle ICE2 HV 120 Brushless ESC)

Focus Shot 16 (6A External BEC w/ 5.1V Two-way Step-down voltage regulator)    

Specification(GP900 Head lock gyro combo) :

1. Utilizes MEMS(Micro Electro Mechanical Systems) micro electronic sensors which are small, highly reliable, and highly stable.
2. 16bit high processing speed CPU is used for ultra high resolution, resulting in higher rudder precision than previously possible, even on modern high powered helicopters.
3. Supports Spektrum and JR satellites, traditional receiver not needed.
4. Support Futabs S-BUS system.
5. Support both digital and analog servos.
6. Support both wide and narrow band receivers.
7. Integrated RCE-G600 speed governor function, thus GP900 can provide speed governor function without additional electronics.
8. Suitable for all 200 to 700 size glow engine or electric helicopters, with higher vibration resistance than any other systems. Superior performance is achievable even with harder mounting foam tapes.
9. Support parameter setting through PC interface, as well as firmware updates.
10. Anti-torque compensation. Optimal tail locking achievable no matter if gyro is mounted upright or inverted. 

Specification(GP900 Head lock gyro combo) :

• Operating Voltage:DC 3.5~8.4V
• Current Consumption:<80mA @ 4.8V
• Angular Detection Speed:600 degrees/sec
• Operating Humidity:-20℃~65℃
• RoHS certification.
• Operating Humidity:0%~95%
• Size:36.5x25.2x15.6mm
• Weight:11g

Specification(T-REX 700E F3C V3) :

• Length: 1343mm
• Height: 424mm
• Width: 210mm
• Main Blade Length: 700mm
• Main Rotor Diameter: 1582mm
• Tail Rotor Diameter: 281mm
• Motor Drive Gear:12T
• Main Drive Gear:112T
• Autorotation Tail Drive Gear: 104T
• Tail Drive Gear: 24T
• Drive Gear Ratio: 1:9.33:4.33
• Weight(With Motor): 3230g
• Flying Weight: Approx. 5200g

T-REX 700E F3C V3 Accessories:

• T-REX 700E F3C Kits Set X1
• Aluminum Tail Boom X1
• 3K Carbon Fiber Tail Boom X1
• F3C 700mm Carbon fiber blades X1
• DS615 Digital servo X3 set
• DS655 Digital servo X1
• GP900 Head Lock Gyro X1
• 750MX Brushless Motor (450KV) X1
• Castle ICE2 HV 120 Brushless ESC X1
• 6A External BEC w/ 5.1V Two-way Step-down voltage regulator X1
• 105mm 3K Carbon Fiber Tail Blades X1 Set

Radio transmitter and electronic equipment required for assembly:

• Transmitter (7-channel or more, helicopter system)
• Receiver (7-channel or more)
• 6S Li-Po 4500 ~ 5200mAh X2
• Dial Pitch Gauge

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Electric vs. Gas Cars

Electric vs. Gas Cars: Electric vehicles are the most popular choice in R/C car racing. They are quick, quiet, easy to build and comfortable for the beginning R/Cer to drive. The electric cars are powered with a rechargeable nicd battery that can be charged in as little as 15-20 minutes. A vehicle with a stock motor will provide about 6-8 minutes of run time; with a couple of batteries and a 15 minute charger, an electric car or truck is ready for hours of use. The popularity of Gas vehicles has increased tremendously over the last few years. The explosive power and acceleration of a gas powered car or truck is exciting to watch. Gas vehicles are powered by a small two-cycle engine burning glow fuel (not gasoline!), and many modelers enjoy the realistic sound and smell that goes along with gas powered racing. Some gas models can reach speeds over 50mph! The wider availability of pull-start engines and the new wave of 1/10 scale vehicles has made it much more affordable for the beginner to enter gas-powered racing.

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Down Thrust

Down Thrust: Downward angle of the engine relative to the centerline of the airplane. Down thrust helps overcome the normal climbing tendency of flat bottom wings.

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Ding

Minor dent or damage to the structure. Also, a nick in a prop. Dinged props must be replaced.

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DSC - Direct Servo Control

This radio feature permits you to check servo operation without broadcasting a radio signal. A cable connects the transmitter to the receiver. Direct servo control is very useful for on-the-ground control checks.

Futaba Description:
Direct Servo Control (DSC): High-end convenience feature which allows control/adjustment of servo function without sending signal through receiver. Requires optional DSC cord (FUTM4250) and DSC-compatible receiver such as R149DP and R113IP.

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T-REX 100X Super Combo KX022005A

T-REX 100X Super Combo KX022005A Rc Helicopter

Introduction:

• Fun and easy flying characteristic has been the reason for T-Rex 100S’s unparallel popularity. To increase its performance even further, Align has improved upon the T-Rex 100S and introduces the brand new T-Rex 100X.
• To improve the flight stability and shorter learning curve, rotor head assembly features a new mounting method between rotor head and main shaft, and the surface area of flybar paddle has been increased. In addition to interchangeable stick mode on the transmitter, stick tension is also adjustable. Transmitter also feature gyro gain adjustment for simple tail sensitivity tuning.
• But the most unique feature is that T-Rex 100X can also be controlled through an iPhone, allowing pilot to experience a completely different flying method.
• Superior flight stability and quality assurance, for immediate indoor flying gratification, T-Rex 100X is the prime choice for any pilot!

Features:

• Brand new rotor head to main shaft attachment design, improving flight stability and minimize vibration.
• Transmitter sticks’ tension can be adjusted to suit pilot’s preference.
• High contrast LCD display screen.
• Extended tailboom to improve gyro tail locking ability and overall controllability.
• Remote gyro gain adjustment on transmitter for ease of tail tuning.
• Supports iPhone/Android as controller using specific transmitter attachment.
• Brand new canopy design.
• Utilizes AFHDS 2.4Ghz automatic frequency hopping technology for stable signal and interference avoidance.
• Transmitter has trainer port capable of interfacing with third party flight simulators on PC. Interface cable is included.
• Support mode 1, 2, and 3 transmitter stick layout.
• Increased flybar paddle to effectively increase flight stability.
• Utilizes hobby grade micro servos and increased frame rigidity, for flight stability, crash survivability, and longevity.
• Built in Nimh and Lipo battery charger which can be used while flying.
• Convenient USB charging jack allowing universal compatibility with PC’s USB port, or any 5v USB travel charger to charge transmitter’s Nimh battery.
• Charging status and capacity display.
• 5-in-1 circuitry includes receiver, ESC, heading lock gyro, servos, and mixing function.

Users must have a certain concept of security to operate the R/C helicopters.
Be sure to read and comply with related safety notes of instruction manual before flying.

Focus Shot 1(High precision head assembly and the surface area of flybar paddle increased)

Focus Shot 2(Rotor head assembly features a new mounting method between rotor head and main shaft )

Focus Shot 3(Utilizes hobby grade micro servos and high efficiency coreless main motor)

Focus Shot 4(Extended tailboom to improve gyro tail locking ability and overall controllability)

Focus Shot 5(High efficiency coreless tail motor)

Focus Shot 6(Supports iPhone/Android as controller using specific transmitter attachment)

Focus Shot 7(AT 100 Transmitter support 3 mode)

Focus Shot 8(Transmitter sticks’ tension can be adjusted to suit pilot’s preference )

Focus Shot 9(High contrast LCD display screen )

Focus Shot 10(Remote gyro gain adjustment on transmitter for ease of tail tuning)

Focus Shot 11(Brand new canopy design)

Focus Shot 12(1.2V / 1600mAh Ni-MH Chargeable Battery)

Focus Shot 13(3.7V / 150mAh Li-Polymer Battery )

Focus Shot 14(CD-ROM)

Focus Shot 15(CH100 Lipo Charger )

Focus Shot 16(USB Cable )

Focus Shot 17(Simulator Cable)

Focus Shot 18(Philips Screwdriver PH00)

Illustration:(Optional:Supports iPhone/Android as controller using specific transmitter attachment)

Illustration:(Compatible with Flight Simulator)

Illustration:(Charging method for transmitter's Ni-MH batteries)

Illustration:(Using the charging receptacle on transmitter to charge helicopter battery)

Illustration:(Using the CH100 Li-Po charger to charge helicopter battery)

Specification:
Length: 209mm
Height: 82mm
Main Rotor Diameter: 192mm
Tail Rotor Diameter: 36mm
Weight(w/o power system): 28.8g
Flying Weight: Approx 33g

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