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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.com | Airsoft Guns ...
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 ...

Amazon.com: Syma S107G 3.5 Channel RC Helicopter with Gyro ...
Syma S107G 3.5 Channel RC Helicopter with Gyro in Blue color scheme. Flight Control Includes Up/Down, Left/Right Turn and Forward/Backward movements.

Amazon.com: Hero RC H911 2.4GHZ iRocket 4 Channel Fixed ...
Hero RC H911 is a 100 class helicopter. It is a 4 channel fixed pitch helicopter providing true radio control helicopter flight performance. It is constructed with ...

How to Fly a 4-Channel RC Helicopter (4 Steps) | eHow
Four-channel radio-controlled helicopters offer a unique RC flight experience, granting their pilots the ability to hover and perform fantastic maneuvers.


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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)

    Good quality helicopter with camera to take pictures and videos
    4-in-1 infra-red receiver assemble 3-axis gyro, ESC, mixer and receiver
    channels for 6 directions: up, down, forward, backward, turn clockwise and anti-clockwise
    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


  • Syma

    Syma F1 Armor Large 3 Channel 2.4Ghz Single Rotor RC Helicopter with Gyro

    Hobby (Syma)
    List Price: $59.99
    Price: $42.92
    You Save: $17.07 (28%)

    Great for Beginners
    Easy to Fly
    Motor Type: Brushed
    Stabile Flight Characteristics
    Battery Type: Lithium Ion (LiLO Battery)


  • Syma

    Syma X5C 4 Channel 2.4GHz RC Explorers Quad Copter w/ Camera

    Toy (Syma)

    Build-in 6 axis gyroscope for precise hovering in the sky
    Using spread spectrum technology for further remote distance, best anti-interference ability, least power consumption. you could fly more helicopters at the same time, its reaction speed is 100 times faster than other radio control
    Various control options for those piloting the X5 Up, Down, Left, Right, Forward, Backward, Leftward flight, Rightward flight.
    Equip with HD Camera
    A key 360o roll, continuous roll for perfect action and wonderful performance.


  • Cool City Trading

    38cm Double Horse 9116 2.4GHz 4CH 4 Channel RC Single Blade Helicopter Gyro Big 450 Size (COLORS MAY VARY)

    Toy (Cool City Trading)

    Rating (202 reviews):
    (3.4/5)
    Cool City Trading

    Great single rotor, four channel helicopter!!

    I purchased my Double Horse 9116 from a seller on Ebay. Got a great deal on it as well ($89.88- current price) with free shipping. I was very pleased with my experience from the Ebay seller.What's in the box?You will receive a very nice looking DH9116 4 channel electric helicopter measuring 19.5 inches in length if you stretch the main and tail rotors out front to back and measure tip to tip. It stands 5.5 inches tall if measured from the bottom of the skids to the top of the main rotor assembly. Main rotor length is 15 inches. The DH9116 is fully assembled and ready to fly (after it's charged). You will also receive a four channel, mode 2 radio with a high/low rate switch and four trim buttons. The radio also sports a lighted LCD screen that shows trim and stick positions as well as battery life. The menu button allows for stick reversing and set up for left or right handed flyers. You will also receive a wall charger, plug and manual.What is "Mode... 5/5 Kenneth Marcum "Harley Man" (Fort Wayne, IN. USA) - See all my reviews, December 30, 2011

    Big step up from the toy 3ch copters

    Someone already wrote a really nice review of this copter so I'll keep this fairly short. First and foremost, if you think you know how to fly helicopters from flying 3ch coaxial helicopters, you don't. Although they have provided you with some of the physics of rotary flight, they've also provided you with a huge comfort level in that they are able to hover continuously. Forget most of that with this one.A 4ch single rotor is getting the user closer to collective pitch flying will still providing a greater degree of safety via being able to hover for brief periods and with some input from the flyer. More challenging but a lot more fund when you've mastered it. This is a great beginner copter for someone who hopes to progress to 6ch CP and likes to fly outdoors. Most coaxials do very poorly in the wind, this does better. Still not great but able to be confidently flown in 5mph breezes.The copter itself is very well made IMO. Real hobbyists will... 5/5 tom4416 "bookie monster" (Virginia) - See all my reviews, January 18, 2012

    Love flying this heli! Great value.

    This was an upgrade from my strictly indoor Syma S107/S107G R/C Helicopter - Red dual-rotor helicopter. I had mastered the easy 3-channel Syma, and wanted to try a single rotor 4-channel. I have never flown any RC helicopters prior to the Syma, nor do I have any real-life aircraft piloting experience.Your experience may differ from mine, but thought I would share. I do not think the 9116 is an indoor helicopter, as it requires a lot of free open space to safely fly (without damaging the helicopter). It takes about 1.25 to 1.5 hours to fully charge the helicopter, and once you are used to flying this heli, it will be a LONG 1.5 hours to wait! It is slightly idiosyncratic at times, but "resets" easily when you turn off and turn on the helicopter (when it starts to act erratically after a full charge, at the beginning of your flight). Sometimes if you get if off the ground to about 3 to 5 feet you may notice the erratic behavior disappear (which may be due to "ground... 5/5 ppmd "Professional" (Arizona, USA) - See all my reviews = Durability:, February 11, 2012
    List Price: $0.00


  • Haktoys

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

    Toy (Haktoys)

    Rating (40 reviews):
    (4.2/5)
    Haktoys

    It has great control and you can do just about anything you ...

    0 5/5 C. Walker (Iowa, USA) - See all my reviews, October 23, 2014

    Great performance for the price

    0 5/5 Saruhan - 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) Having purchased and played with many RC helicopters I found this one to give the highest price to performance ratio among double bladed helicopters. I would highly suggest purchasing this great toy. 0 Help other customers find the most helpful reviews  Was this review helpful to you? , June 28, 2014

    Hard to learn to fly... but worth it...

    0 5/5 Rex M. Siemer - 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) Never flown a RC copter before so it was interesting to say the least, but once you get the hang of it it was very fun. Would buy another. 0 Help other customers find the most helpful reviews  Was this review helpful to you? , May 10, 2014
    List Price: $129.99
    Price: $79.99
    You Save: $16.99 (21%)
    Electric Powered, 4 Channel, Radio Control, Ultra Light Alloy Metal Body, Coaxial Rotor, Detailed Paint Job
    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.
    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.
    Indoor/outdoor copter flies up to 300 feet


  • JP Commerce

    4CH 2.4GHz Mini Radio Single Propeller RC Helicopter Gyro V911 RTF White&Blue

    Toy (JP Commerce)

    Rating (526 reviews):
    (4.0/5)
    JP Commerce

    Best Heli EVER - NOT EVEN KIDDING

    I have flown a LOT of R/C planes. Gas, Electric, Glider. I own an embarrassing amount of coaxial helis. This beats them all - No joke.You should know - I suck at flying helis. Badly. I fly them all the time in the Realflight Sim (Excellent BTW), and it ends in tragedy and disaster. Every time. Every. Time.I'm fairly good at flying coaxial helis, however. Pretty much anyone with a pulse would be. I think you could manage if you are missing an arm. They are fun for poking around the house at about 1ft/sec top speed, they will hover while you make yourself a sandwich, and supreme at playing 'what can I land on' games (The Syma 107 cannot be beat for that). I have some big ones for flying outside. They are terrible outside. I want to fly outside...Then I read glowing reviews about the v911. Beginners love it, CP Snobs sneer at it. Perfect. For under $50 I was in.When I got it in, I was concerned. The Syma 107 I have has... 5/5 Pandafish (FL) - See all my reviews = Durability:, August 7, 2012

    Extremely a blast to fly

    Customer Video Review Length:: 2:06 MinsI have this model but in the black and orange color, wish I had got this blue and white model, this bird is easy to fly, very durable, handles breezes quite well, is quite fast almost too fast for inside use. after over 50 flights with this I have noticed one slight flaw, the swash plate center piece will rise up causing the helo to drift backwards, so just make sure to push it back down after each flight, there is a fix buy the nine eagles 260a pro swash plates for $3 and it will cure the problem I went ahead and spent the $9 and the nice light weight aluminum CNC parts for just cause they are cool looking. I am really hoping to get a second one (blue and white) to add to my already 9 helicopters. I did not buy mine from this seller I got mine from banggood.com and at that time for $45 its now $53, but so much better than it counterparts the align T-100s and the nine eagles 260a Pro and a whole lot cheaper also.3/21/12 got new 2nd one blus and... 5/5 Dan (aka THXkid) (Phoenix, Az United States) - See all my reviews = Durability:, March 4, 2012

    worth twice the price!!

    I have been flying rc helis for many, many years. I have owned dozens and still own several. I mostly fly my 450 trex clones, however, I still love smaller helis for indoor flying during the long, cold winters that we have here in the mountains and for a change of pace from 450 size helis.The v911 is EXCEPTIONAL in every way. I cannot find any flaws with this heli.I live above 8000' and it still has power to spare.The build quality is very good.The supplied controller is also very good and even has dual rates.I consistently get 5 minute flight times.When I do fly it outside, I regularly fly it in winds to 5-6 mph and it is a blast and controllable.Inside, the v911 flys just fine also.The heli is very stable in flight and hovers well.I liked this heli so much that I ordered another one just like it.I have almost 100 flights on mine and all is still well. I have not crashed it but I'd bet that it is durable due to... 5/5 purnielou - See all my reviews = Durability:, September 11, 2012
    List Price: $119.95


  • WL Toys

    Hero RC H911 2.4GHZ iRocket 4 Channel Fixed Pitch Ready to Fly Helicopter w/ bonus Battery, Balance Bar, Main Blade, Connect Buckle, Tail Blade, USB Charger

    Toy (WL Toys)

    Rating (220 reviews):
    (4.2/5)
    WL Toys

    This little bird rocks!

    If you are looking for a quick and short answer, then I'd say YES, buy it. Now if you have time and want to know a little about my RC heli flying experience then read on. I started flying the RC heli with an indoor, toy-grade, 3/3.5-channel, infra-red (The sun light will interfere with infra-red), coaxial (2 sets of main rotor/blades) model. It's cheap, slow, and stable, but less responsive to the control, and the fact that it needs a 20~30 minute charging time for every 3~4 minutes of play is just a pain in you know what. After I became pretty good at it (Also tired of it), I got crazy. I moved up to a 450 class 6-channel collective pitch single rotor model, which was a huge mistake. It's like from playing with a harmless toy to an upside-down lawn mower! It was a money pit! Every crash (Usually happened in 10 seconds after take-off) would cost me at least $10~$20 for parts and lots of time trying to repair and adjust it myself. Stepping from a 3.5-channel model to a 6-channel one is... 5/5 gt507866 - See all my reviews Verified Purchase(What's this?) This review is from: Hero RC H911 2.4GHZ iRocket 4 Channel Fixed Pitch Ready to Fly Helicopter w/ bonus Battery, Balance Bar, Main Blade, Connect Buckle, Tail Blade, USB Charger (Toy) If you are looking for a quick and short answer, then I'd say YES, buy it. Now if you have time and want to know a little about my RC heli flying experience then read on. I started flying the RC heli with an indoor, toy-grade, 3/3.5-channel, infra-red (The sun light will interfere with infra-red), coaxial (2 sets of main rotor/blades) model. It's cheap, slow, and stable, but less responsive to the control, and the fact that it needs a 20~30 minute charging time for every 3~4 minutes of play is just a pain in you know what. After I became pretty good at it (Also tired of it), I got crazy. I moved up to a 450 class 6-channel collective pitch single rotor model, which was a huge mistake. It's like from playing with a harmless toy to an upside-down lawn mower! It was a money pit! Every crash (Usually happened in 10 seconds after take-off) would cost me at least $10~$20 for parts and lots of time trying to repair and adjust it myself. Stepping from a 3.5-channel model to a 6-channel one is... Read more Help other customers find the most helpful reviews  Was this review helpful to you? , March 4, 2013

    Awesome Heli! A must buy over the standard V911!

    After reading some forums, there were nothing but rave reviews for the WL Toys V911 (a single bladed fixed pitch heli) as the next step from 3 ch coax helis....so I bought one. After receiving it I was literally wow'd by it's speed, agility and stability. It was as stable as a coax but could tear across the room with just a slight push of the stick. What an amazing heli! I've flown the V911 at least once a day for the last few weeks and am still amazed with it.After browsing Amazon one day, I came across the Hero RC H911 Warbird Edition (a rebranded and upgraded ver. of the V911). I liked the shark mouth canopy and already loved the V911 so I picked one of these up too! There are some very slight differences between the original V911 and the Hero H911 though. This model comes with larger 180 mAh batteries vs. the V911s 120-130 mAh batteries equating to longer flight time. This model also comes with a different, more aggressive swash plate. Because of it, I can get... 5/5 Johnnyrocket - See all my reviews Verified Purchase(What's this?) This review is from: Hero RC H911 2.4GHZ iRocket 4 Channel Fixed Pitch Ready to Fly Helicopter w/ bonus Battery, Balance Bar, Main Blade, Connect Buckle, Tail Blade, USB Charger (Toy) After reading some forums, there were nothing but rave reviews for the WL Toys V911 (a single bladed fixed pitch heli) as the next step from 3 ch coax helis....so I bought one. After receiving it I was literally wow'd by it's speed, agility and stability. It was as stable as a coax but could tear across the room with just a slight push of the stick. What an amazing heli! I've flown the V911 at least once a day for the last few weeks and am still amazed with it.After browsing Amazon one day, I came across the Hero RC H911 Warbird Edition (a rebranded and upgraded ver. of the V911). I liked the shark mouth canopy and already loved the V911 so I picked one of these up too! There are some very slight differences between the original V911 and the Hero H911 though. This model comes with larger 180 mAh batteries vs. the V911s 120-130 mAh batteries equating to longer flight time. This model also comes with a different, more aggressive swash plate. Because of it, I can get... Read more, January 11, 2013

    Great little heli for around the house!

    Like others have said, this is probably the best $45 dollars I've spent! I had a Swann Micro Lighting whose motor died after a crash that has been waiting to be replaced. The difference between these two helis is night and day. The Swann is way too tame by comparison being a coaxial and no aileron functions. The remote isn't half bad either with trim tabs for each channel, an lcd readout (although kinda cheesy), and a form of a dual-rate incorporated into the top button. The heli itself is attractive and practically unbreakable. I've crashed it numerous times, and the worst thing that has happened is that the canopy became dislodged. The gyro system is incredible at keeping the little bird's tail pointing in the same direction until you tell it otherwise with the controller. The tail will start to drift as the battery starts running low (Hint: it's a Lithium Polymer battery, stop flying it as this point and don't run it down anymore. Trust me, the battery will last much much longer)... 5/5 Matt S - See all my reviews Verified Purchase(What's this?) This review is from: Hero RC H911 2.4GHZ iRocket 4 Channel Fixed Pitch Ready to Fly Helicopter w/ bonus Battery, Balance Bar, Main Blade, Connect Buckle, Tail Blade, USB Charger (Toy) Like others have said, this is probably the best $45 dollars I've spent! I had a Swann Micro Lighting whose motor died after a crash that has been waiting to be replaced. The difference between these two helis is night and day. The Swann is way too tame by comparison being a coaxial and no aileron functions. The remote isn't half bad either with trim tabs for each channel, an lcd readout (although kinda cheesy), and a form of a dual-rate incorporated into the top button. The heli itself is attractive and practically unbreakable. I've crashed it numerous times, and the worst thing that has happened is that the canopy became dislodged. The gyro system is incredible at keeping the little bird's tail pointing in the same direction until you tell it otherwise with the controller. The tail will start to drift as the battery starts running low (Hint: it's a Lithium Polymer battery, stop flying it as this point and don't run it down anymore. Trust me, the battery will last much much longer)... Read more Help other customers find the most helpful reviews  Was this review helpful to you? , December 2, 2013
    Servo Cyclic Control
    Convenient Binding
    Indoor/Outdoor capability
    LCD Transmitter/Fine Tuning
    Dual Mode Operation


  • Syma

    Syma S800G 4 Channel Remote Control Helicopter with Bonus Parts - Black & White

    Toy (Syma)
    List Price: $59.99
    Price: $29.99
    You Save: $30.00 (50%)

    Infrared control
    4 Channel Remote Control Helicopter with Bonus Parts!
    Swashplate controlled
    Sideway flight as well as forward, backward, left, right, up and down
    6-8 minute flight time


  • Haktoys

    Crash Kit Main Blades Tail Flybar Set for Haktoys® HAK448 4 Channel 16" RC Helicopter

    Toy (Haktoys)

    Rating (4 reviews):
    (4.2/5)
    Haktoys

    It is nice to have them on hand though

    0 4/5 Freaky Fredy57 "Alfredo Cariaga" (KCKS) - See all my reviews Verified Purchase(What's this?) This review is from: Crash Kit Main Blades Tail Flybar Set for Haktoys® HAK448 4 Channel 16" RC Helicopter (Toy) I haven't had to use the extra parts yet but I'm sure I will. It is nice to have them on hand though. 0 Help other customers find the most helpful reviews  Was this review helpful to you? , December 24, 2014

    everything is great

    0 5/5 twnzgramp - See all my reviews Verified Purchase(What's this?) This review is from: Crash Kit Main Blades Tail Flybar Set for Haktoys® HAK448 4 Channel 16" RC Helicopter (Toy) Had to use some of the parts the day I got them in the mail ..... everything is great 0 Help other customers find the most helpful reviews  Was this review helpful to you? , October 19, 2014

    Good buy.

    0 5/5 dan neely - See all my reviews Verified Purchase(What's this?) This review is from: Crash Kit Main Blades Tail Flybar Set for Haktoys® HAK448 4 Channel 16" RC Helicopter (Toy) Great buy and deal. 0 Help other customers find the most helpful reviews  Was this review helpful to you? , November 9, 2014
    List Price: $19.99
    Price: $9.99
    You Save: $10.00 (50%)
    Package contents: 4 x main blades, 1 x tail blade, 1 x flybar, 2 x connect buckles, 4 x main grip set
    Compatible with Haktoys® HAK448


  • Syma

    Syma S34 3 Channel Chinook RC Helicopter 2.4ghz (Blue/Grey)

    Toy (Syma)

    Operating Instructions
    2.4ghz Transmitter (4 AA Batteries not included)
    Charger
    Screwdriver
    S34 Chinook 3 Channel Helicopter


Helicopters