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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.


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Beginner RC Helicopters from BananaHobby.com. Find the perfect 4-CH Beginner RC Helicopter in our wide selection of RC Helicopters including Radio Controlled Helis ...


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Editor's picks

  • Haktoys

    Haktoys HAK448 4 Channel 15" RC Helicopter, Gyroscope, Rechargeable, Ready to Fly, and with LED Lights - Colors May Vary

    Toy (Haktoys)
    List Price: $89.99

    Built-in gyroscope for maximum stability
    Optimum charge time: 90 minutes, flight time: 7-10 minutes, flight range: up to 250 feet
    Stable flight & flexible materials with side propellers
    Ready to fly right out of box, indoor/outdoor flight
    Withstands up to 5 mph breezes, spare parts available, great for beginners


  • Syma Toys Industrial, Co.

    Syma S109G 3.5 Channel RC Helicopter with Gyro

    Hobby (Syma Toys Industrial, Co.)

    Rating (0 reviews):
    (4.1/5)
    Syma Toys Industrial, Co.

    Best mini helicopter at this price!

    I have a small squadron of mini helicopters and this one is by far the best so far. I read great reviews of the Syma S107. I was quite pleased with it compared to some of the older Syma models. Then I saw the positive reviews for this and thought I would give it a go. It flies incredibly well! Quiter than the other seven helicopters I have and so stable, smooth, and responsive. It is a little slow with forward and reverse momentum, but not bad. Slow is easier to control...maybe that was intentional. We fly these every day in the office and this hands down outperforms everthing else.For those comparing models, here you go:Syma S109 Apache- ExcellentSyma S105G (Sport Helicopter) Very Good -Fastest, stable, but somewhat loud, durable metal frameSyma S107G- (Sport Helicopter) Very good- nearly identical to S105 but a little slower, different scheme,older?Syma S026 Chinook- Looks cool, flies ok, but hard to control. Too much power for its weight;... 5/5 Anotherflyer "Anotherflyer" (Alaska) - See all my reviews = Durability:, July 1, 2011

    Freaking awesome. 10x better than 1st gen copters

    ****UPDATE after a year and a half of owning and flying this. Amazingly, still going strong after all this time, and still using original battery! Has to be the best toy value around. One very easy mod to make your heli move a little faster (forward), is to get some solder, and wrap a few coils around the nose at the very tip (don't block the IR sensor though, so be careful if you add weight using something else, like a coin as some people do). The way the model is shipped, is too light in the front, IMO, because (at least for mine), I could go quite a bit faster BACKWARD than I could forward. To add some forward collective speed at the slight loss of some agility, I highly recommend adding a little weight, so that you can still go backwards, but just barely. On a side note, I enjoyed flying this micro copter so much, I bought it's big BIG brother, the Syma 023G, so I could fly outdoors (RF instead of IR allows this to happen). Love that one as well, and has the exact same... 4/5 BruceInCola - See all my reviews, July 17, 2011

    Syma Military Helicopters

    I own all the Syma Mini Military helicopters. Here is my review for all 5.1. S108G Cobra. By Far the fastest and the most aggressive of the helicopters. This one takes a little bit of time to get used to and is for the more experienced flyer. Its super fast and super durable.2. S109G Apache. Another good helicopter from Syma. Runs the same as the Cobra. Fast and swift.3. S026G Chinook. A good beginner helicopter. Very stable in flight. It can be fast if you want it to be or it can be slow. This is one of my favorites out of the series.4. S102G Black Hawk. My brother has the S107G and this flies just like it. This is probably the best helicopter that syma makes. Extremely stable and can take a serious beating. (But so can all the others.) It will fly at the speed you want it to from slow to fast and takeoffs and landings are extremely smooth.5. S111G Coast Guard Rescue. This too is a fine product from syma. Super smooth flyer... 5/5 APR - See all my reviews = Durability:, June 22, 2012
    List Price: $79.99
    Price: $8.50
    You Save: $71.49 (89%)
    Easy to Fly
    Battery Type: Lithium Polymer (LiPO Battery)
    Great for Beginners
    Motor Type: Brushed
    Stable Flight Characteristics
    Stabile Flight Characteristics


  • Syma

    Syma F1 Armor 3 Channel RC Helicopter 2.4ghz w/ Gyro (Red)

    Toy (Syma)

    -Gyro Technology allows helicopter to be more stable
    -Double Protection, helicopter throttle will power off automatically when blades are caught
    -Flashing lights with search light allows helicopter to be seen in low light situations
    -2.4ghz radio frequency technology
    -High speed and low speed function


  • Syma

    Syma X5C-1 4 Channel 2.4GHz RC Helicopter Explorers Quad Copter with Camera

    Toy (Syma)

    Rating (112 reviews):
    (4.0/5)
    Syma

    Great Beginner Quadcopter - Can Be Used For FPV

    0 5/5 Glycon (Mt. Pleasant, SC USA) - See all my reviews Verified Purchase(What's this?) This review is from: Syma X5C-1 4 Channel 2.4GHz RC Helicopter Explorers Quad Copter with Camera (Toy) I'm not a quadcopter expert by any means, but I have flown a number of different models. The Syma X5C-1 is the best handling and easiest to fly of any of the entry level quadcopters I have flown. I like the UDI U818A and have three. They are fun to fly, forgiving, and have survived many crashes. However, since I bought the Symas, I now have two X5C-1s, I rarely fly the U818A. The X5C-1 is more stable, easier to hover, handles the wind better, and can survive some rough treatment. It will carry an 808 Keychain camera if you want upgraded video, but will not fly well with a Mobius or anything heaver. With a little practice, it can be flown inside or out.It can be equipped for first person view. I recently mounted a Spektrum Ultra Micro FPV Camera & VTX (SPMVA1100) atop one of my X5C-1s and I'm getting some great FPV video through a remote monitor I mounted atop the Syma transmitter. I highly recommend the X5C-1 as a great beginner quadcopter! 0, April 15, 2015

    Glad I bought extra batteries and a five port battery ...

    0 5/5 NotSure@Dystopia - See all my reviews This review is from: Syma X5C-1 4 Channel 2.4GHz RC Helicopter Explorers Quad Copter with Camera (Toy) My first ever remote flying machine. I've had it for two days and can't put it down. Glad I bought extra batteries and a five port battery charger because this thing's addictive. Fun to fly during the day and the lights make night flights look really cool in a UFO kind of way. Even after I pack it in for the evening I find myself flying it around the house. Even had it do a flip right in the living room! I just spend thousands on other bigger unrelated toys and they're going to collect dust until the novelty on this little cutie wears off. Only complaint I have is that the battery compartment keeps opening if it hits something but it still flies. I guess as I get better it won't hit anything! 0 Help other customers find the most helpful reviews  Was this review helpful to you? , March 12, 2015

    You'll love the Syma X5C-1

    0 5/5 ATX Man "dcameron1" (new york, NY USA) - See all my reviews Verified Purchase(What's this?) This review is from: Syma X5C-1 4 Channel 2.4GHz RC Helicopter Explorers Quad Copter with Camera (Toy) The Syma X5C-1 is a great little quad-copter. It's really fun. The upgrade improves control in wind. It can still get easily blown away in light wind!Practice without the camera because it handles 100% better without the camera attached.Tip: google "syma x5c-1 range modification" for a modification to improve range.Have fun and fly responsibly. 0 Help other customers find the most helpful reviews  Was this review helpful to you? , February 25, 2015
    A key 360o roll, continuous roll for perfect action and wonderful performance.
    It is a upgraded version of X5C equiped with HD Camera.Please know that the "X" of X5C on the plane is red.
    Various control options for those piloting the X5C. Up, Down, Left, Right, Forward, Backward, Leftward flight, Rightward flight.
    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.


  • Buddies

    17 Inch RC Helicopter 4 Channel with Gyro and lights, Color Blue

    Toy (Buddies)
    List Price: $69.95
    Price: $33.96
    You Save: $35.99 (51%)

    Complete kit, ready to fly, only requires 8 AA batteries for the remote controller
    The first RC helicopter that can fly outdoors in windy weather (outdoor wind grade 3-4 mph)
    17 inch (43 cm) 4CH RC helicopter with built-in Gyro and colorful night lights
    Free flight up, down, forward, backward, left, right, and hover with rapid response
    High quality ultrathin metal canopy with ultra light weight and strong impact resistance


  • 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)

    Servo Cyclic Control
    Convenient Binding
    Indoor/Outdoor capability
    LCD Transmitter/Fine Tuning
    Dual Mode Operation


  • JP Commerce

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

    Toy (JP Commerce)

    Rating (560 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 jim - See all my reviews = Durability:, September 11, 2012
    List Price: $119.95
    Price: $32.89
    You Save: $87.06 (73%)


  • Syma

    Syma S107G 3.5 Channel RC Helicopter with Gyro, Blue

    Hobby (Syma)

    Rating (0 reviews):
    (4.2/5)
    Syma

    Great little toy

    Most of the other reviews have hit the major pros and cons with this, but there are still a few more that I can add. Hope they help in making your purchasing decisions!PRO:- Thanks to the gyro, very short learning curve. Remote has two joysticks. Left side only moves up/down and controls speed of the rotors, which controls how much lift they generate. Right joystick moves up/down (controlling forward/reverse) and left/right (makes heli spin). You can also moving the right stick diagonally to make various turns while moving forward or backwards (reverse "figure-8's" are always impressive).- Surprisingly large number of "mods" that can be done to a $30 heli. After experimenting, I have settled on two minor ones. First, I removed the spring from the left joystick in the controller. This lets me put the heli in a hover and let go of the remote ("look ma, no hands!"). I have also moved the landing gear forward in their mounts to push the center of... 4/5 RJ (NY, NY) - See all my reviews = Durability:, December 24, 2010

    An unsung hero of the indoor RC helis - The Syma S107 (7.5 inches long)

    RATING: After flying the 7.5 inch Syma S107 indoor heli for about 3 months now, I have to say that it is one of the most under-rated RC heli out there, hands down. Shop around. At about $30 online with taxes and stuff, this little trooper delivers the looks, detail, durability and performance of a much pricier heli. The Syma S107 has only 3-way controls but it competes surprisingly well with the likes of the Blade MCX2 which has 4-way controls and retails for about $150 off-line.PERFORMANCE: I find it more fun to fly the Syma S107 than the smoother and more mellifluous Blade MCX2. In this sense the Syma S107 hews to a less is more principle: i.e. it delivers more with less. But here is the irony of the whole situation: the Syma S107's ragged performance edge actually connects with you better than the ultra-smooth Blade MCX2. It's almost like the difference between stick shift and automatic transmission. The S107's controls just feel more tactile than those of the Blade... 5/5 C. Rex - See all my reviews = Durability:, November 3, 2010

    Is there such a thing as a toy that's too perfect...?

    The Syma S107 is so easy to control that on my first flight I had it tour my whole apartment, zooming in and out of closets and never touching an obstacle until I deliberately landed it. If you've never flown a good RC heli before, you might need to practice a bit. It might be your second or third flight before you get that good.The S107 is *really* that easy to control.I'm sure that many of you have played with Air Hogs and other micro helis and you long for a little heli that just plain flies where you want it to fly and stays up in the air. I'm here to tell you that such perfection is within your grasp.Before I got my S107, I already owned two Syma S105s and I never get tired of flying them. They look almost identical to the S107 and the remote is identical, but they take a little bit of skill to fly with precision and I've made little tweaks here and there to get better control.The S107 takes almost no skill to fly. They gyro makes... 5/5 Hey Mo!! (The City of Townsville) - See all my reviews, July 28, 2010
    List Price: $19.99
    Price: $8.00
    You Save: $11.99 (60%)
    Stabile Flight Characteristics
    S107 and S107G differ only in labeling. Either may be shipped.
    Motor Type: Brushed
    Great for Beginners
    Easy to Fly
    Battery Type: Lithium Polymer (LiPO Battery), batteries for remote control not included


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


  • Monoprice

    Monoprice Sky Shark RC Helicopter with Gyro, 4.5 Channel - Blue

    Personal Computer (Monoprice)
    List Price: $30.99
    Price: $29.72
    You Save: $1.27 (4%)


Helicopters