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Rc 4 Channel Helicopters -




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Rc 4 Channel Helicopters - Bookshelf

Performance Data From a Wind-Tunnel Test of Two Main-Rotor Blade Designs for a Utility-Class Helicopter

The aerodynamic characteristics of the RC(4)-10 airfoil have been obtained but have not been reported on at this time. ... The rotating-blade data are transferred through a 30-channel slip-ring assembly. Rotor forces and moments are ...



368 pages

The Son Tay Raid, American POWs in Vietnam Were Not Forgotten

Creator: John Gargus | 2010-09-28

There they would provide fuel for two Air Force Combat Apple RC-135Ms and for one radio relay RC-135. ... Their aircraft would be configured with additional equipment to monitor four more UHF channels used by the raiders.

Publisher: TAMU Press

About this book
In May 1970, Aerial Photographs Revealed what U.S. military intelligence believed was a Pow camp near the town of Son Tay, twenty-three miles west of North Vietnam's capital city. When American officials decided the prisoners were attempting to send signals, they set in motion a daring plan to rescue the more than sixty airmen thought to be held captive.On November 20, a joint group of volunteers from U.S. Army Green Berets and U.S. Air Force Special Operations Forces Perfectly executed the raid, only to find the prisoners' quarters empty; the POWs had been moved to a different location. Initially, the Son Tay raid was a devastating disappointment to the men who risked their lives to carry it out. Many vocal critics labeled it as a spectacular failure of our nation's intelligence network. However, subsequent events proved that the audacity of the rescue attempt stunned the North Vietnamese, who implemented immediate changes in the treatment of their captives. The operation also restored the prisoners' faith that their nation had not forgotten them.John Gargus not only participated in the planning phase of the Son Tay rescue, but also flew as a lead navigator for the strike force. This revised edition incorporates the most recent information from raid participants and also includes recent translations of North Vietnamese perspectives. No previous book on this top-secret action has given such a full account or such insight into both the execution and aftermath of Son Tay. This book will be an invaluable addition to the history and historiography of the Vietnam War.



168 pages

Maximum PC

2006-12

The sim ships with a USB controller that mimics an actual Futaba 4-to-10 channel transmitter. The controller includes inputs and patch cords to connect the transmitter from your own RC kit, if you prefer to use that instead, ...

About this book
Maximum PC is the magazine that every computer fanatic, PC gamer or content creator must read. Each and every issue is packed with punishing product reviews, insightful and innovative how-to stories and the illuminating technical articles that enthusiasts crave.


Helicopters Directory

4 Channel RC Helicopters - Hobbytron
Find the best selection of 4 Channel Helicopters at the lowest prices anywhere at HobbyTron.com.

Syma RC Helicopter Review - 3 channel vs 4 channel - YouTube
Best RC Helicopters for beginners. I compare the 3 channel rc heli and a 4 channel rc heli. Get your own RC Helicopters: 3 Channel: http://tinyurl.com/Best ...

Avatar Z008 4 Channel RC Helicopter Review - YouTube
Buy One for $25.99 at http://www.tmart.com/JXD-385-4-Channe... Flight time 5 or 6 minutes, charge time 20 minutes from USB charger or 45 minutes from the ...

Amazon.com: Syma S107G 3.5 Channel RC Helicopter with Gyro ...
Metal Frame Remote Controlled Helicopter. From the Manufacturer Syma S107G 3.5 Channel RC Helicopter with Gyro in Blue color scheme. Flight Control Includes Up/Down ...

4 Channel Infrared Remote Control 4CH RC Helicopter with ...
J6683 4 Channel Infrared Avatar Radio Remote Control RC Helicopter with GYRO RTF in Toys & Hobbies, Radio Control & Control Line, Radio Control Vehicles | eBay


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Editor's picks

  • UDI

    New with Video Camera! UDI U13A 3 Channel 2.4GHz Metal RC Helicopter w/ Video Camera

    Toy (UDI)

    Over charging protection prolong life span of Lipo battery. Over current protection technology
    Metal alloy frame with elastic blades and flybar endure crash. Transmitter supports 3 channels for 3 heli fly at the same time
    4-in-1 infra-red receiver assemble 3-axis gyro, ESC, mixer and receiver
    Good quality helicopter with camera to take pictures and videos
    channels for 6 directions: up, down, forward, backward, turn clockwise and anti-clockwise


  • Syma

    Syma X1 4 Channel 2.4G RC Quad Copter - UFO

    Toy (Syma)

    Rating (588 reviews):
    (3.9/5)
    Syma

    Critical Piece of Instruction....

    We were disapointed in this toy on Christmas morning. It was impossible to fly - it just went sideways as soon as it took off and nothing we did seemed to calibrate it sufficiently to hover. The instruction manual says "After charging the aircraft the light will flash for ten seconds. Turn on the aircraft and controller and wait for flashing lights to indicate the aircraft is ready for flight." What it fails to mention is that it is critical to place the "aircraft" on a flat surface at his time IMMEDIATELY after inserting the battery. The model then apparently is able to calibrate itself and will hover reasonably stablely. The online manual clued me in to our mistake (we were probably holding the model in our hands in an un-level position for the first dozen seconds after plugging in the battery)"When insert the charged battery, quad copter will into automatic detection state (the indicator light flashing swift in the first ten seconds when power on) at that time,... 4/5 D. Reading (Houston, TX USA) - See all my reviews, December 26, 2012

    $50 of Awesomeness

    Let me preface by saying that I own around 40 RC helicopter ranging from high end $3000 gassers to cheap $25 fp toys. This was my first quad. I bought this at the 49.99 price point and have no regrets even though they are now 39.99This has been the best $50 that I have spent in a long time. There are so many things going for this kit, where do I begin.The Good-Incredibly durable. I have crashed countless times from goofing around and flying indoors and have yet to cause any permanent damage. Even though this is a cheap product they made good choices in durable materials.-Very stable and easy to fly. My wife has no experience with helicopters, but I was able to get her to try this out in our living room.-Stable in outdoor conditions. I was surprised at the ability to fly this in light-breeze conditions.-Payload capacity. For fun, I strapped an iPod nano to the bottom to shoot video. This weighs 35 grams and the quad seemed to be able to... 4/5 Gadget Junkie (Bay Area,, CA United States) - See all my reviews Verified Purchase(What's this?) This review is from: Syma X1 4 Channel 2.4G RC Quad Copter - UFO (Toy) Let me preface by saying that I own around 40 RC helicopter ranging from high end $3000 gassers to cheap $25 fp toys. This was my first quad. I bought this at the 49.99 price point and have no regrets even though they are now 39.99This has been the best $50 that I have spent in a long time. There are so many things going for this kit, where do I begin.The Good-Incredibly durable. I have crashed countless times from goofing around and flying indoors and have yet to cause any permanent damage. Even though this is a cheap product they made good choices in durable materials.-Very stable and easy to fly. My wife has no experience with helicopters, but I was able to get her to try this out in our living room.-Stable in outdoor conditions. I was surprised at the ability to fly this in light-breeze conditions.-Payload capacity. For fun, I strapped an iPod nano to the bottom to shoot video. This weighs 35 grams and the quad seemed to be able to... Read more Help other customers find the most helpful reviews  Was this review helpful to you? , November 23, 2012

    Revised instructions - UPDATED

    ***** UPDATED Jan. 11, 2014 **********I had a couple of people tell me that they could not get their copter transmitters to connect. After playing with the sequence a bit, we found that on some copters (not all... go figure) the TX should be turned on and initialized BEFORE the copter gets to the gyro initialization process - which makes it even more important to be ready to set it on a level surface before plugging the battery in. Anyway, this sequence change seems to address the problem some of the copters were having. The instructions have been updated to reflect this change.Now back to your regularly scheduled review...*****************************************I've been in R/C for 30+ years, and was very involved in R/C helis. This was my first quadcopter, and have enjoyed it very much. The hardest thing about this copter is getting it out of the box. Lots of cheap fun, and definitely a gateway drug to the hobby-grade... 4/5 Melsman (Central California) - See all my reviews Verified Purchase(What's this?) This review is from: Syma X1 4 Channel 2.4G RC Quad Copter - UFO (Toy) ***** UPDATED Jan. 11, 2014 **********I had a couple of people tell me that they could not get their copter transmitters to connect. After playing with the sequence a bit, we found that on some copters (not all... go figure) the TX should be turned on and initialized BEFORE the copter gets to the gyro initialization process - which makes it even more important to be ready to set it on a level surface before plugging the battery in. Anyway, this sequence change seems to address the problem some of the copters were having. The instructions have been updated to reflect this change.Now back to your regularly scheduled review...*****************************************I've been in R/C for 30+ years, and was very involved in R/C helis. This was my first quadcopter, and have enjoyed it very much. The hardest thing about this copter is getting it out of the box. Lots of cheap fun, and definitely a gateway drug to the hobby-grade... Read more Help other customers find the most helpful reviews  Was this review helpful to you? , November 16, 2013
    Two Fly Mode:Indoor/Outdoor
    Controlling distance: About 40 Meters
    3 way precision controller: up/down, left/right, forward/backward
    2.4GHz Radio control
    Stabilty and agility in flight simplify professional 3D maneuvers like pirouettes 3D fun flips,rolls,and more.


  • Haktoys

    Haktoys® HAK448 4 Channel 16" RC Helicopter, Gyroscope, Rechargeable, Ready to Fly, and with LED Lights - Colors May Vary

    Toy (Haktoys)

    Rating (26 reviews):
    (4.1/5)
    Haktoys

    Excellent quality and fun to fly. Certainly worth the money.

    0 5/5 Gary P. (CA) - See all my reviews This review is from: Haktoys® HAK448 4 Channel 16" RC Helicopter, Gyroscope, Rechargeable, Ready to Fly, and with LED Lights - Colors May Vary (Toy) HAK448 came in a mid-size box with a transparent plastic in the front. After charging it about 1 hour, I took it outside. I flew the helicopter while enjoying the breeze and sun. I was surprised how easy it was to fly, not sure because I'm a tech guy, or this beast was engineered magnificently. I got about 10 minutes of flight time per charge. I also was surprised how durable the material was. I crashed it many times, yet still flies like a beast.Side blades are protected with plastic cotton which makes it safer to fly.Note: I was provided a free sample for review purposes in an exchange for a fair and honest reflection of my experience. 0 Help other customers find the most helpful reviews  Was this review helpful to you? , July 18, 2014

    Fantastic!

    0 5/5 michelle bennett - See all my reviews Verified Purchase(What's this?) This review is from: Haktoys® HAK448 4 Channel 16" RC Helicopter, Gyroscope, Rechargeable, Ready to Fly, and with LED Lights - Colors May Vary (Toy) I bought this for my boyfriend's birthday gift, he absolutely loves it. He's not great at it yet but getting there. It's takin some mighty hard crashes and just keeps going....everytime we think it's destroyed, it comes back to life!!!! 0 Help other customers find the most helpful reviews  Was this review helpful to you? , May 15, 2014

    more than expected

    0 5/5 William Clausen - See all my reviews Verified Purchase(What's this?) This review is from: Haktoys® HAK448 4 Channel 16" RC Helicopter, Gyroscope, Rechargeable, Ready to Fly, and with LED Lights - Colors May Vary (Toy) This helicopter is more than expected . Performs smoothly ,directions are complete controls function as they should. I am well pleased with this product and would recommend it to any one else, especially beginners. 0 Help other customers find the most helpful reviews  Was this review helpful to you? , June 3, 2014
    List Price: $129.99
    Length: 16" Width: 8.3" Height: 6.5" Product weight: 0.65 lbs. Main Rotor Diameter 13.5". Controls: forward / backward / up / down / left / right Intelligent R/C System. Full Scale Remote Control. 360 Precise Directional Movement. Smooth hovering performance.
    Indoor/outdoor copter flies up to 300 feet
    Package Contents: 1 x HAK448 Helicopter, 1 x 3.7V 700mah battery (built-in), 1 x Transmitter, 1 x Antenna, 1 x Wall charger, 1 x Screwdriver, 1 x Instructions Manual. REQUIRED: 6 x 1.5V AA alkaline batteries for the Transmitter (Remote Control)
    Please Note: Do not leave the helicopter switched on when not in use.
    Electric Powered, 4 Channel, Radio Control, Ultra Light Alloy Metal Body, Coaxial Rotor, Detailed Paint Job


  • Syma

    Syma S109G 3.5 Channel RC Helicopter with Gyro

    Hobby (Syma)
    List Price: $79.99
    Price: $16.59
    You Save: $63.40 (79%)

    Great for Beginners
    Motor Type: Brushed
    Battery Type: Lithium Polymer (LiPO Battery)
    Stable Flight Characteristics
    Easy to Fly


  • WL Educational Products

    Wl Products - 4CH 2.4GHz Mini Radio Single Propeller RC Helicopter Gyro V911 RTF Red and Black - This 4CH 2.4GHz mini RC helicopter with pioneering single propeller, built-in Gyro, extremely light weight, strong resistance of impact, steady and agil

    Toy (WL Educational Products)

    Rating (376 reviews):
    (4.1/5)
    WL Educational Products

    V911 Walkera knockoff

    0 5/5 unktone - See all my reviews This review is from: Wl Products - 4CH 2.4GHz Mini Radio Single Propeller RC Helicopter Gyro V911 RTF Red and Black - This 4CH 2.4GHz mini RC helicopter with pioneering single propeller, built-in Gyro, extremely light weight, strong resistance of impact, steady and agil, February 11, 2012

    Supurb for a Clone

    Customer Video Review Length:: 1:56 MinsUpdate: this will bind to my Turnigy 9x V2I got this at another online place in Hong Kong for $44.99, flew almost perfect out of the box, just a couple quick trims from the very nice LCD remote and I had in hovering inside and out rock solid steady. Have flew it twice inside a real hand full when in a small area, cause this baby really moves, outside have done 8 full flights all of them perfect, no crashes and each ending with a nice soft landing. flies very well even in a pretty good breeze, handles wind very well, you can swoop from 15 feet in the air down to inches from the ground in just a blink of an eye, has very long range so far that you just have to stop any further cause its so far out there or up there that you will loose site of it, I did take it 150-200 feet straight up just to see how far it would go I finally just stopped taking it up cause it was so small I could barely see it. because of the elastic type material most of the... 5/5 Dan (aka THXkid) (Phoenix, Az United States) - See all my reviews This review is from: Wl Products - 4CH 2.4GHz Mini Radio Single Propeller RC Helicopter Gyro V911 RTF Red and Black - This 4CH 2.4GHz mini RC helicopter with pioneering single propeller, built-in Gyro, extremely light weight, strong resistance of impact, steady and agil, January 23, 2012

    Great 4 channel heli that provides endless fun!

    I am very impressed with this heli. It is a chinese knockoff cross between a Nine Eagles Solo Pro and an Align T-rex 100s, but for a third of the price. I even found the word Align in thier manual since they didn't do a good job removing that in the process of duplicating the manual. I came from flying an airhogs, then the Syma S102G (much better than air hog) and now this 4 channel V911. I can't compare to other 4 ch heli's but compared to the coaxial 3 channels, this is much, much more fun. It is so much faster and can fly outside in the sun, thanks to the 2.4 Ghz remote. Wind will greatly affect it so calm days are best. The 2 removable batteries are awesome and last 5 or 6 minutes each. The biggest problem I had was getting use to the different controller layout compared to the 3ch coaxial heli's. The throttle is still on the left, but the rudder (spin left or right) is on the left instead of the right, which makes this controller a mode 2 layout. The right stick on this... 5/5 StangCBR (pc, florida) - See all my reviews This review is from: Wl Products - 4CH 2.4GHz Mini Radio Single Propeller RC Helicopter Gyro V911 RTF Red and Black - This 4CH 2.4GHz mini RC helicopter with pioneering single propeller, built-in Gyro, extremely light weight, strong resistance of impact, steady and agil I am very impressed with this heli. It is a chinese knockoff cross between a Nine Eagles Solo Pro and an Align T-rex 100s, but for a third of the price. I even found the word Align in thier manual since they didn't do a good job removing that in the process of duplicating the manual. I came from flying an airhogs, then the Syma S102G (much better than air hog) and now this 4 channel V911. I can't compare to other 4 ch heli's but compared to the coaxial 3 channels, this is much, much more fun. It is so much faster and can fly outside in the sun, thanks to the 2.4 Ghz remote. Wind will greatly affect it so calm days are best. The 2 removable batteries are awesome and last 5 or 6 minutes each. The biggest problem I had was getting use to the different controller layout compared to the 3ch coaxial heli's. The throttle is still on the left, but the rudder (spin left or right) is on the left instead of the right, which makes this controller a mode 2 layout. The right stick on this... Read more Help other customers find the most helpful reviews  Was this review helpful to you? , March 11, 2012
    Suitable for children of 15 years old&up
    New and high quality
    Can fly outdoor in the wind weather(out door wind grade 3-4)
    With 2.4GHz radio system, many helicopters can fly at the same time without interference.


  • SkyMaster

    SkyMaster 7" Mini RC Remote Control Helicopter, 4 Channel Infrared Remote Control Built-In Gyroscope with Metal & Plastic Frame, Multiplayer Up To 3 Helicopters

    CE (SkyMaster)

    Rating (9 reviews):
    (3.3/5)
    SkyMaster

    Great Product

    0 5/5 Alan Kincaid - See all my reviews Verified Purchase(What's this?) This review is from: SkyMaster 7" Mini RC Remote Control Helicopter, 4 Channel Infrared Remote Control Built-In Gyroscope with Metal & Plastic Frame, Multiplayer Up To 3 Helicopters (Electronics) This is the most steadiest and durable helicopter I have flown yet. And I've bought about 20 now. I plan on getting another soon once all 3 I just bought arrive. 0 Help other customers find the most helpful reviews  Was this review helpful to you? , January 22, 2013

    Fun!

    0 5/5 Wade - See all my reviews Verified Purchase(What's this?) This review is from: SkyMaster 7" Mini RC Remote Control Helicopter, 4 Channel Infrared Remote Control Built-In Gyroscope with Metal & Plastic Frame, Multiplayer Up To 3 Helicopters (Electronics) This little machine take a few hours to learn but it's a blast. The air ventilation (HVAC) system in the house is equivalent to a flying in 40mph winds. 0 Help other customers find the most helpful reviews  Was this review helpful to you? , May 22, 2013

    Grandson Happy :-)

    0 5/5 Ernesto Castillo "God is Good" (Sac) - See all my reviews Verified Purchase(What's this?) This review is from: SkyMaster 7" Mini RC Remote Control Helicopter, 4 Channel Infrared Remote Control Built-In Gyroscope with Metal & Plastic Frame, Multiplayer Up To 3 Helicopters (Electronics) My grandson is very happy, he loves playing with it. He uses it all the time with his dad. Happy Grandpa. 0 Help other customers find the most helpful reviews  Was this review helpful to you? , June 25, 2013
    USB charger
    Indoor Flight
    Build-in gyro
    Battery protection Board
    LED Light


  • Udirc

    Udirc U830 2.4Ghz 4-Channel RC Quadcopter Aircraft Mini UFO (Black/Orange)

    Car Audio or Theater (Udirc)
    List Price: $79.99
    Price: $31.81
    You Save: $48.18 (60%)

    UDI U830 RC Quadcopter can follow the direction of the hand sensor controller.
    Functions: 4CH with gyro, fly up and down, forwards, backwards, left, right side flying and spinning, auto hover,360-degree flip and stunts, and spins
    High Capacity Battery And Strong Power Motors Enable The Helicopter To Fly Much Longer And More Efficiently.
    2.4Ghz mini 4 channel 6 axis hand sensor quadcopter with gyro stabilization with gravity sensor


  • NC Metal Gyro

    Newest NC Model Gyro 3.5 Channels Metal RC Helicopter - Free USB & AC Charger - Value of $14 -

    Toy (NC Metal Gyro)
    List Price: $79.95

    The first Gyro 3.5 Channels Metal RC Helicopter. Better than the famous Syma S107. 3 colors to choose from.
    Length : Approx. 7.5 Inches. Width : Approx. 1.65 Inches.Height: Approx. 4.5 inches (from landing gear to balance bar).Main Rotor Surface Diameter: Approx 7.1 Inches.Weight : Approx. 1.4 Ounces.Suitable for Indoor flight or outdoor with NO wind .Suitable for Children 14+ ages.
    Brand New in Retail Packaging: - NC New Gyro 3.5 CH Metal Mini RC Helicopter - Remote Controller (required 6 AA batteries , not included)- 1 Spare tail rotor (Free)- 1 Spare Blade A & 1 Spare Blade B (Free)- 1 USB Cable (Free)- AC Home Charger (110V)- Instructions manual
    This newest NC Gyro 3.5 CH Mini Metal RC Helicopter can be charged directly from the Remote Controller, or directly from your PC/Laptop by using the included USB Cable (Free), or charged from AC Adapter (included).
    This new 3.5 channels Gyro Metal can fly up, down, left, right, forward and backward, plus it let you control the speed, you can either fly in low or high speed by simply switch the speed control button.


  • Velocity Toys

    Micro 301 F-Series Electric RC Helicopter GYRO Gyroscope 4CH Channel USB IR Infrared Ready To Fly RTF (Colors May Vary)

    Toy (Velocity Toys)
    List Price: $69.99
    Price: $24.95
    You Save: $45.04 (64%)

    Length: 9" Wingspan: 7" Height: 5"
    Built In Gyroscope (GYRO) for Precise and Stable Flying! Comes with an Integrated High Performance Lithium Battery for Longer Flight Times! Charges Via Included USB Charging Cable, Plugs Into Straight Into Your Computer or Wall Adapter!
    Ultra-Bright, Red LED Inner Chassis Light! Hybrid Metal Alloy & Plastic Chassis Frame w/ Polymer Body Shell for Maximum Durability! Coaxial Rotor Design with Balancing Bar for a Stable, Smooth Ride!
    Comes with Spare Rotor Blades Remote Control requires 6 AA Batteries to run (not included)
    Features: Electric Powered (Rechargeable) 4 Channel Infrared Radio Functions w/ Tri-Band Selector (A, B, C)


  • Night Hunter

    Night Hunter Xtreme Glow In The Dark RC Helicopter

    Hobby (Night Hunter)

    Rating (35 reviews):
    (2.6/5)
    Night Hunter

    Good for a beginner heli

    0 4/5 Daniel B. Beus (Utah) - See all my reviews, July 2, 2012

    Didn't work

    0 2/5 J Carroll - See all my reviews Verified Purchase(What's this?) This review is from: Night Hunter Xtreme Glow In The Dark RC Helicopter (Toy) We purchased this for our son for Christmas and it never worked properly. I wouldn't recommend this item for purchase in the future. 0 Help other customers find the most helpful reviews  Was this review helpful to you? , April 8, 2013

    IT OK

    0 3/5 James E. Puehler - See all my reviews, March 13, 2013
    List Price: $99.99
    Helicopter flies for approximately 8 minutes after being charged for approximately 40 minutes
    Helicopter Flies Up, Down, Left, Right, 360 degrees and Hovers
    Glow in the Dark Body and Blades
    Infrared Remote and Helicopter Charger
    Wireless Rechargeable Mini Helicopter


Helicopters