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Rc Helicopter Four Blade -





Rc Helicopter Four Blade - Bookshelf

Aerodynamic Characteristics of Two Rotorcraft Airfoils Designed for Application to the Inboard Region of a Main Rotor Blade

The two new airfoils, the RC(4)-10 and RC(5)-10, and a baseline airfoil, the VR-7 which is currently in use, were all ... of helicopters via the development of advanced airfoil sections for helicopter main rotor blades, and significant results have ...

Publisher: DIANE Publishing


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

Publisher: DIANE Publishing


Government reports annual index

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Helicopters Directory

Top 10 Best RC Helicopter 2017 Review & Buyer Guide | USA
Looking for RC helicopter? There are comprehensive guide, rating, and features of the best RC helicopter UPDATE list. Top selling device in USA

Blade 450 / 450X RC Helicopter Review
The Blade 450 3D RC helicopter replaced the original 400 and the 450X (flybarless version) has now replaced the 450 3D. Blade continues to strive to become the number ...

E-flite's Blade CX3 - MD520N Coaxial RC Helicopter Review
Well, as a scale RC heli guy, the Blade CX3 is the coaxial RC helicopter I have been waiting a long time for, especially since I like the MD520N so much.

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Cheap 3/4/6 CH RC Helicopters,Discount RC Heli
It is a professional web that offers the different channels helicopters, such as 3CH,4CH and 6CH,RC helicopters include several main brand, including Walkera, WLtoys ...


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Editor's picks


  • Horizon Hobby

    BLADE Pico QX Quadcopter

    Hobby (Horizon Hobby)
    List Price: $55.99

    Compact 8 gram micro quadcopter with internal battery and LED lights
    Engineered with SAFE™ technology
    Execute single- or double flips with the push of a button
    USB charge cables work with any available USB port
    Includes 2.4GHz transmitter with internal battery


  • 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)

    Controler battery: 6*AA Batteries (Excluded)
    Products Function: Up and down, turn left and turn right, forward and backward, Left flying and right flying ,Gyro function with light
    Gyro stabilization system
    Flight distance: About 100 meters
    Helis battery: 7.4/650mAh Li-po battery ( Included)


  • eHappyMaker

    eHappyMaker Rc Helicopter Anti-crash Landing Training Kit Gear for trex 450 500 blade 400 450 esky SYMA JTS

    Toy (eHappyMaker)

    Anti-crash Landing Training Kit
    For: T-Rex 450 500 Blade 400 450 Esky Rc Helicopter
    4 x Ball 4 x Rod 2 x Center Hub 1bag x kits 1 x carton(to protect the unit not to be damaged)


  • Haktoys

    Haktoys HAK809 10" Mini 2.4GHz Single Blade 4 Channel RC Helicopter, Gyroscope, Rechargeable, Ready To Fly

    Toy (Haktoys)

    Monitor speed, LCD screen, trim, battery usage and other features on controller's
    Suggested for hobbyists with beginner-to-intermediate level RC experience and/or analog game controllers
    2.4GHz frequency for better control and simultaneous flights
    Slow-fast adjustable speed modes, indoor/outdoor flight, spare parts are available
    Optimum charge time: 30-45 minutes, flight time: 7-9 minutes, flight range: Up to 300 feet


  • Horizon Hobby (US)

    Blade Micro AH-64 Apache RTF Vehicle

    Hobby (Horizon Hobby (US))

    Rating (12 reviews):
    (3.2/5)
    Horizon Hobby (US)

    Nice scale cp heli, but not for beginners

    This is a hobby-grade, collective pitch scale rc helicopter. If you know RC helicopters well enough to know what that means, skip the next paragraph which talk about that. It's not bad for one of those. If you're not familiar with all those terms, this could be a surprise and a disappointment.Hobby-grade means it is NOT A TOY. It's designed for adult handling and care, not bashing around the back yard. Collective pitch means it's very responsive and not a beginner helicopter. It's a serious step up in difficulty - both flying and setup - from single-rotor helicopters like the popular V911 or 3-axis multirotors. Compared to the MCX line Blade recommends for beginners or a 6-axis multirotor, it's not one but TWO steps up. Scale means that instead of the thin plastic canopy covering the guts, it's got a complete fuselage that looks like a full scale helicopter. This means it's heavier than a pod-and-boom model so It'll have shorter flight times and poor acrobatic performance... 4/5 Mike Meyer (Norman, OK) - See all my reviews, February 9, 2017

    I love the helo

    5/5 NCreloader - See all my reviews Verified Purchase(What's this?) This review is from: Blade Micro AH-64 Apache RTF Vehicle (Toy) I love the helo, but its not a beginners helo,( I am a beginner and many crashes later) I heavily modified it so now it has a 1200 mah battery in a battery box under it and put skids from a 200srx on it as well as cut the top of the canopy out. I now get 15 mins of flying with it., March 27, 2017

    Looks great, flys like an ostrich (badly)

    2/5 mark - See all my reviews Verified Purchase(What's this?) This review is from: Blade Micro AH-64 Apache RTF Vehicle (Toy) Looks wise this is a stellar helicopter. That all changes when it comes to flight. It feels too heavy for the motor it comes with. Short flight time. The helicopter I've had 2 both defective. Tail rotor spins out of control. Barely any room to place the micro sized battery. Looks good. Functions very poorly. Not a good representation of a blade helicopter. Really was disappointed. I've owned over 10 blade and eflite aircraft. Loved them. This is not a good craft whatsoever. Help other customers find the most helpful reviews  Was this review helpful to you? , January 31, 2017



  • Carmel RC -Toys

    CIS Flybarless Helicopter, Large/29", Green

    Hobby (Carmel RC -Toys)
    List Price: $117.50

    Lipo battery for quick charging and powerful output
    Large single blade 4 channel flybarless helicopter
    6 axis gyro for easy control
    Range of 200 feet and run time of 8+ minutes
    Ultra stable for indoors and outdoors with winds up to 20 MPH


  • MJX

    Quadcopter with Camera-X101 FPV Quadcopters 720P HD Wide-Angle Camera Live Video with Headless Mode, 2.4GHz 4 Chanel 6 Axis Gyro RTF RC Drone, Compatible with VR Headset and Additional Spare Parts

    Toy (MJX)

    Rating (31 reviews):
    (4.0/5)
    MJX

    Wanna know how to use the camera?

    First, if you search around on Amazon, you will find this drone sold under several names. They are all pretty much the same from what I can see. I purchased this one because I needed it in 24hrs to get video of my gutters before my builder could tell me there is no debris in them. This is the second low-end drone I have purchased over the last couple of years. The documentation for this class of drone is notoriously bad, although the documentation for this one is better than some. There is a link to a YouTube video in the description of this item. The video is helpful, and if you pause a bunch of times, is better than the booklet that comes with the drone.The assembly is pretty straight forward. The only thing I could see someone doing wrong here would be in putting the props on. There is a hole in the top of each prop that looks like it will take a screw. On this drone they don't. The props have a stem that go over the output shaft of each of the transmissions at the end... 4/5 Amazon Customer - See all my reviews Verified Purchase(What's this?) This review is from: Quadcopter with Camera-X101 FPV Quadcopters 720P HD Wide-Angle Camera Live Video with Headless Mode, 2.4GHz 4 Chanel 6 Axis Gyro RTF RC Drone, Compatible with VR Headset and Additional Spare Parts (Toy) First, if you search around on Amazon, you will find this drone sold under several names. They are all pretty much the same from what I can see. I purchased this one because I needed it in 24hrs to get video of my gutters before my builder could tell me there is no debris in them. This is the second low-end drone I have purchased over the last couple of years. The documentation for this class of drone is notoriously bad, although the documentation for this one is better than some. There is a link to a YouTube video in the description of this item. The video is helpful, and if you pause a bunch of times, is better than the booklet that comes with the drone.The assembly is pretty straight forward. The only thing I could see someone doing wrong here would be in putting the props on. There is a hole in the top of each prop that looks like it will take a screw. On this drone they don't. The props have a stem that go over the output shaft of each of the transmissions at the end... Read more Help other customers find the most helpful reviews  Was this review helpful to you? , March 20, 2017

    Love this drone

    5/5 Camille Hebert - See all my reviews Verified Purchase(What's this?) This review is from: Quadcopter with Camera-X101 FPV Quadcopters 720P HD Wide-Angle Camera Live Video with Headless Mode, 2.4GHz 4 Chanel 6 Axis Gyro RTF RC Drone, Compatible with VR Headset and Additional Spare Parts (Toy) My second quadcopter and this thing is great! I've crashed it numerous times but it always bounces right back up. Controls are very responsive and it is easy to get the hang of. Only one minor down side: the props are little hard to install. Before this I had a UDI discovery, it was more difficult to get good pictures because the camera is fixed, its pointing down, you have no idea what its actually seeing, you have to constantly focus on keeping the drone steady because it blows around in the wind due to it's light weight and the pictures honestly weren't that great anyway. Not to mention those batteries lasted about 5 mins a piece. The x101 comes with 2 batteries each one can last 8-10 mins. Help other customers find the most helpful reviews  Was this review helpful to you? , February 23, 2017

    great for advanced users not really for beginners

    I got this for my husband as he always admired the neighbor across the street running his up and down the road and I have to admit I've seen a lot of videos of these and they do look like a lot of fun this was our first drone and I have to say we really enjoyed it but the lack of assembly instructions for a beginner is quite the put off most of the time putting this together was guess work but at least we got everything pretty much in the right place all but the screws on the propellers we thought the screws needed to go down the top of the propeller but they needed to go through the side which it did not say in any of the paperwork that was included. This was quite a bit bigger than we expected but well worth it after all was assembled and operational.this comes with 2 batteries so you can use one while the other is charging.and does come with spare propeller blades should you break any white crash landing when you first run this. This has different modes to start at beginner mode... 5/5 Krazy T (USA) - See all my reviews, March 27, 2017
    THROTTLE ALTITUDE LIMITER: Adjust how high your drone can fly with the altitude limiter settings on the transmitter according to your preferences. Prevent the drone from flying-away, excellent for beginners.
    X101 Quadcopter with Camera TUTORIAL VIDEO LINK: https://www.youtube.com/watch? v=5bLdbmcZYkg HEADLESS MODE: Include latest radio control technology allowing automatic location identification when played in HEADLESS MODE. Easy to get back your drone even if it fly far away from you.
    HD Camera Drone ONE-KEY RETURN: With built-in positioning system, the quadcopters can auto locate the remote control. You must switch the flying mode to HEADLESS MODE first, then press the one-key return button and the drone will fly back to the remote control's location.
    What You Get: Tokky MJX X101 FPV Drone with Wi-Fi Camera, Transmitter, (2) Li-Po Batteries, (2) Landing Skids,USB Charging Cable, Battery Charger, (4) Protection Frames, User Manual.
    3D FLIP: The latest 6-Axis Gyro flying control system allow majestic aerobatic aerial maneuvers just by pressing a button.Impress your friend even if you are a beginner.



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