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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.

4-Channel Co-Axial RC Helicopters - Xheli
Hero RC H288 Gyro Star RC Remote Control 3 channel Metal Micro Helicopter Genuine and Manufactured by Syma S107/S107G OEM w/ bonus blades, balance bar, connect buckle ...

4-Channel RC Helicopters - Nitroplanes.com
Exceed RC 2.4Ghz Falcon 40 V2 4-Channel RC Helicopter RTF Fixed Pitch - 100% Ready-to-Fly w/ Lipo Battery & LCD Transmitter Monitor (Blue) 8/3/2010

Electric RC Helicopters 4 Channel Series - Trend Times
4 channel RC helicopters are geared for people that want to learn the rc helicopter hobby and demand precise control that mimicks a full scale helicopter.

4 Channel Infrared Remote Control 4CH RC Helicopter with ...
J6683 4 Channel 4CH Infrared Avatar 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)

    Rating (148 reviews):
    (3.9/5)
    UDI

    Weeeeeeeeeeeeeeee!

    This is my second one. I broke the first using a pipe to get it out of a tree. Why buy another? It is without a doubt the best rc video helicopter I have received here. I intend to buy several more so I can rotate them when I am out and about flying them. Keeping one charged while we fly the others....thats how much fun these are. Durable? You bet! Outdoor flying? Not the greatest if there are any winds aloft at all, but on a calm day, there is nothing better than flying this toy over and over and videotaping your exploits. I have flown up to about 30 meters, and could have gone higher, but the darned thing was hard to see. Incredibly stable, you will find yourself flying this helicopter through increasingly more difficult paths, as it is rock steady when it is calm out.BUY THIS! for the money, it is amazing.As with anything, there are pros and cons. I guess in keeping with the other comments, the cons of this helicopter is that flying outdoors is a challenge if there is any... 5/5 Dave Francis (Bellevue, WA, US) - See all my reviews = Durability:, December 1, 2012

    Nice all black, good quality camera, stable flight.

    I received this today and charge it right away for test flight. It is very solid, as nice looking as Syma brand S031G only a bit smaller. Charging time is 20-30 min, and flight time is 5-7 min quite short. If you can upgrade the battery to keep it longer in the air that would be more fun. The 2.4G transmitter is neat, it's not bulky and has an electronic display. Binding take some time, i don't know why, my transmitter sometime takes up to full 5 min for it to bind with the black bird. But once they both hooked up, it's fun to fly. Operating the camera/still photo is no brainer. There are one button for each action on the transmitter, on or off, however it take some time to get used to. The slot for the SSD is as easy to operate as in any p/s cameras, insert the card, soft push to eject it. Over all, it's nice. But with the price of $50+, it's a little expensive. The "party light" led display along the tail boom is just sicken me (my kids love it); and annoying as well making it look... 4/5 Kevin - See all my reviews = Durability:, June 26, 2012

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

    0 5/5 Brandon G. Racine "WRENCHRIGHT" (ROUSES POINT, N.Y.) - See all my reviews, November 6, 2012
    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
    Over charging protection prolong life span of Lipo battery. Over current protection technology
    channels for 6 directions: up, down, forward, backward, turn clockwise and anti-clockwise
    Good quality helicopter with camera to take pictures and videos


  • Syma

    Syma X1 4 Channel 2.4G RC Quad Copter - UFO

    Toy (Syma)

    Rating (553 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

    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

    $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
    3 way precision controller: up/down, left/right, forward/backward
    Stabilty and agility in flight simplify professional 3D maneuvers like pirouettes 3D fun flips,rolls,and more.
    2.4GHz Radio control
    Two Fly Mode:Indoor/Outdoor
    Controlling distance: About 40 Meters


  • 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)

    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.
    Suitable for children of 15 years old&up
    New and high quality


  • China

    YD711-19/20 Gear Set for Avatar 2.8G Wireless 4-Channel RC Helicopter (Black)

    Baby Product (China)

    Replaces your damaged or broken gear set
    Model: YD711-19/20
    Brings your RC helicopter a new look
    Compatibility: Avatar 2.8G wireless 4-channel RC helicopter


  • JP Commerce

    Syma X1 4 Channel 2.4G RC Quad Copter - BumbleBee

    Toy (JP Commerce)

    Rating (130 reviews):
    (4.3/5)
    JP Commerce

    Capable, Durable, and Fun Quadcopter!

    The Syma X1 is an excellent entry-level quadcopter. It is durable (already survived 100+ crashes), relatively easy to fly, and an impressive value. It is suitable for indoors and outdoors use and I can't recommend it enough for any looking to get into R/C quadcopters or simply looking for something fun to try out.Design/Build:The Syma X1 is a very basic model - it has the four propellers, plastic frame, small electronics board, and a thin plastic cover (either a UFO, Bumblebee, or Spaceship - simply aesthetic). It is very light and the battery (included) clips into the undercarriage of the craft. I was surprised at how durable this quadcopter was - I've crashed it countless times into walls, ceilings, down the stairs, etc. Each time I cringe slightly at the sound, but the worst that has happened is the battery has popped out. Also, Syma includes an extra set of propellers in case you do damage any of them.Remote Control:Again, a very... 5/5 Arbitrage (Boston, MA) - See all my reviews = Durability:, March 14, 2013

    The Most fun!

    0 4/5 Amazon Customer - See all my reviews = Durability:, December 26, 2012

    Good starter Quad, or a toy for grown-ups

    Customer Video Review Length:: 3:00 MinsThis thing ROCKS! Crash resistant, lightweight, simple to set up. Quad is a throw away toy for me to move up to build my own. I am experienced in the RC world, so this review may not be for everyone... I'm not using the original controller, not enough power, and the antenna is probably a tube dipole. Mine is bound to my FlySky CT6B transmitter. I get about 3 times the range. This thing flys stable. I just opened a couple of other batteries and soldered JST plugs onto the single cells, and off we went. It even flys with an old Zippy 1500 mah. It also flys ok with a #808 #16 camera. I'll try and post the video. The receiver uses GFSK modulation like the Turnigy, FlySky, and HobbyKing setups, so they should be compatible. Look online RCgroups for setup parameters. If you like RC, Just throw it in your cart. I got this one for 30, so it was a no-brainer...costed same as my wife's haircut. Parts widely available, Great for windy and rainy days when I can't fly my... 5/5 Patrick Heidingsfelder (South MS) - See all my reviews, July 14, 2013


  • 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 (8 reviews):
    (3.4/5)
    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
    Build-in gyro
    LED Light
    Battery protection Board
    USB charger
    Indoor Flight


  • Syma

    Syma X1 4 Channel 2.4G RC Quad Copter - Spacecraft

    Toy (Syma)

    Rating (565 reviews):
    (4.2/5)
    Syma

    Syma X1 Quad Bind Process / Radio not working

    Hey fellow owners and potential owners!Noticed others are having the same problem my buddies and I had when I first received the Syma X1 Quad, they should UPDATE THE INSTRUCTIONS ASAPI had an issue with the radio transmitter not binding with the Syma X1 quad and there IS A EASY SOLUTION.The instructions are lacking in this area and are responsible I'm sure with a lot of frustration and probably returns.In between my friends and I we have over 6 of these to date, they all work with this procedure that I quickly wrote for another amazon user.SYMA X1 QUAD - RADIO TRANSMITTER BIND PROCESSIMPORTANT SOLUTION TO ALL OWNERS - RADIO NOT WORKING WITH THE SYMA X1 QUAD1. CONNECT BATTERY TO QUAD, THE LED WILL FLASH SLOWLY2. LED WILL BEGIN TO FLASH RAPIDLY,.... IMMEDIATELY TURN ON RADIO TRANSMITTER3. LED IS SOLID, BIND PROCESS COMPLETE. READY TO FLYAfter connecting the battery to the quad the led will... 4/5 Amazon Customer (USA) - See all my reviews = Durability:, December 13, 2012

    how to switch from mode 1 to mode 2

    Excellent little machine. When I first turned it on and tried to fly, it flew sideways into the wall. Tried several times with the same result.solution: First, make sure that transmitter is off. Place battery into unit and immediately place it on the floor or other level surface. Wait for unit to stop flashing rapidly and is flashing slow, THEN make sure that throttle is off and turn on the transmitter, unit will pair with a steady light and an audible beep.Happy flying. Remember it is a 4 channel. I have yet to flip it, just not enough room where I fly indoors and I have yet to determine where the 'A' button is to change it from mode 1 to 2.FOUND IT!! thankfully!!Transmitter offHold right horizontal trim button to the rightPower on transmitterrelease trim buttondisplay now reads Mode 2Myself... I am so much happier with the unit now that I found mode 2. I am used to flying coaxials in this mode and... 4/5 Custom Communications "customcommunications" (massachusetts, usa) - See all my reviews, December 21, 2012

    Tough and Great flying machine

    This is an incredible tough little flying machine and a great way to get in to the world of RC flying and quad copters.I have purchased various indoor and outdoor RC flying toys and this is the first one that has made it intact after the first week.First the toy, it comes with a decent 2.4ghz transmitter with a short rubber antenna which can't break unlike the old steel ones of years gone by. The flying instructions look quite complicated but who really reads a manual anyhow and the only way to learn is by practice and it does take a while.The Quad comes fully assembled and once charged it is ready to fly. Charging time is about an hour and flight time is over 10 minutes. I think continuous fly time would be around 6 - 7 minutes but it will be a good few days until you can keep it in the air for over 1 minute.We have crashed this endless times, landed in the tallest of trees, got tangled in branches, my garden is now littered with long poles... 5/5 furnic (Florida, USA) - See all my reviews = Durability:, November 16, 2012
    The latest 3-axis flight control system with adjustable gyro sensitivity that permits super stable flight.
    360° Eversion
    3 way precision controller: up/down, left/right, forward/backward
    Two Fly Mode:Indoor/Outdoor
    2.4GHz Radio control


  • Haktoys

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

    Toy (Haktoys)
    List Price: $149.00

    Electric Powered, 4 Channel, Radio Control, Ultra Light Alloy Metal Body, Coaxial Rotor, Detailed Paint Job
    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)
    Indoor/outdoor copter flies up to 300 feet
    Please Note: Do not leave the helicopter switched on when not in use.
    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.


  • WL Toys

    WL Toys RC 4 Channel Quadcopter V959 Future Battleship Spy Drone

    Toy (WL Toys)

    Extra 4 X Rotors
    100% assembled V959 w/ Spy Camera
    4-Ch 2.4G Remote controller
    Battery Charger
    3.7V 500mAh Li-Po Battery


  • Heli-Max

    Heli-Max RTF SLT 2.4GHZ 1Si Quadcopter with Camera

    Hobby (Heli-Max)

    Rating (27 reviews):
    (2.8/5)
    Heli-Max

    Great Quadcopter

    0 5/5 customer - See all my reviews Verified Purchase(What's this?) This review is from: Heli-Max RTF SLT 2.4GHZ 1Si Quadcopter with Camera (Toy) I have a Helimax 1SQ and using this Helimax 1SI was almost the same. the on difference that I like is the ease of use. I notice that even when I bump in to something it still maintains the direction you started with. it uses the same battery as the helimax 1SQ but be careful when installing the battery put the battery in first then connect the wire which push into the battery slot. So far my only issue is calibrating the go home feature which is just a matter of following the instructions in detail. if your new or an average flyer change the sensitivity to a range of 30-40. I'm set at 45 about 3-5 minutes of flying time on a full charge which take 30-45 minutes to charge 0 Help other customers find the most helpful reviews  Was this review helpful to you? , December 31, 2013

    Not Recommended

    0 1/5 Siffert (NM, USA) - See all my reviews This review is from: Heli-Max RTF SLT 2.4GHZ 1Si Quadcopter with Camera (Toy) While this high priced quad has some new tech on it, it suffers from a bunch of problems. For starters, the prop guards are poorly designed and break easily (unlike the Hubsan 107 prop guards). The props easily slide off. Using the Hubsan 107 props instead cured this problem (which makes one wonder why Hobbico did not use those-haha). The "return to home" feature does not always work along with the direction control feature as well. Reading on R/C forums some have been lost and missing in action (MIA) with failed "return to home". Also the motors on this 1Si seem quite under powered when climbing. Finally, trying finding parts for this and if you are lucky to find them in stock, see how high priced they are compared to other makes of quads. I will say that the camera is OK for video so long as the day is bright. For me, one is much better off buying say a Hubsan 107 model, at half the price of this one along with none of this one's problems. 0 Help other customers find the most helpful reviews  Was this review helpful to you? , January 20, 2014

    Great Quad, Lousy Support

    0 3/5 Susan F. Byrns (Liverpool, NY, US) - See all my reviews, March 30, 2014
    List Price: $199.99
    Price: $133.79
    You Save: $66.20 (33%)
    INCLUDES: RTF 1Si Quadcopter, with 4-ch Radio, 350mAh Battery, USB Charger, Micro Digital Camera, 2GB Micro Memory Card, USB Card Reader, extra set
    FEATURES: Micro digital camera take still photos and shoots video with control from the transmitter, includes 2GB micro memory card with USB card read


Helicopters