Showing posts with label bad. Show all posts
Showing posts with label bad. Show all posts

Tuesday, April 10, 2012

WowWee Bladestar Flame Indoor Flyer Review

WowWee Bladestar Flame Indoor Flyer
Average Reviews:

(More customer reviews)
This is a flying machine unlike anything you've ever seen before. It's not an airplane, it's not a helicopter, it's not an autogyro, it's not an ornithopter with flapping wings. It's a powered maple seed. I'd have never thought of it, and you probably wouldn't have either, but the Wowwee designers did, and they deserve lots of credit for this masterpiece of out-of-the-box thinking.
I read about it in the magazine of an engineering society that I belong to, and the reviewer couldn't figure out what kind of "control equation" allowed an object with no non-rotating reference elements -- everything on the Bladestar spins -- to operate under directed flight. He must have come from the same aeronautical tradition as the ones that proved that a bumblebee can't fly. (We now know that insects use nonlinear "unsteady flows" to gain more lift than traditional aerodynamic equations provide for.)
While the Bladestar employs "AI" according to its advertising, it's not as smart as a bumblebee. But it can successfully avoid light-colored objects under good conditions. In the jargon of AI research this is called situationist autonomous control. If the room you're flying it in has dark walls like my living room, you'll have to guide it away from them yourself. The blades do collect dings if you fly it into hard objects, but the wingtips are covered with heavy foil that you can smooth out and it's nearly as good as new.
It naturally hovers very stably, so you might expect it to respond to the controls like a UFO in a video game, but no, this is a real flying object with gyroscopic effects when it tilts to move sideways. It takes a little bit of practice to learn to anticipate these movements and coordinate the controls appropriately. I was practicing landing on target after about 5 flights.

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Bladestar is a revolutionary indoor flying machine that changes helicopter flight as we know it. This is the first flying toy with a sensor-based navigation that enables it to glide itself through the air as it avoids ceilings and other obstacles. Alternatively you can control it with the three-channel digital IR controller, and with the dogfight accessory attached you can face-off two bladestars to see who will win. When you notice power loss, simply recharge right from the controller. Made from light "high-flex" materials and designed to be crash-resistant, Bladestar is built for indoor flight. Requires 6 "AA" batteries, not included.

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Tuesday, March 20, 2012

RADIO CONTROL HELICOPTER Review

RADIO CONTROL HELICOPTER
Average Reviews:

(More customer reviews)
The helicopter is very durable. It is an item that will bring out all the neighbors for a fun time. The kids and adults all enjoy watching. It is also a little larger than most of the radio contoled helicopters. A larger copter is a big plus when you are flying it outside. Very pleased - Good price !

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Model Number :HX251liIt's time to soar the great blue skies with the HX Dragonfly 251 remote control helicopter.liThis life like helicopter is powered by two electric motors and can fly up to 100 feet high at speeds up to 12 mph.liSoft, gradual control response and stable hovering characteristics also make it one of the easiest R/C helicopters to fly!liThe digital proportional radio system with 2 channel control is easy to learn making it suitable for beginners. liThe fully functional remote features left, right and up, down controls and allow hovering at any altitude. liThe main frame and body of this durable helicopter are constructed using ABS crash resistant plastic.liFeatures: liFull function 2 channel radio control liTwin electric motors liAltitude and rotor speed control liFlight stabilizing system liSuper lightweight airframe liBrake for easy landing liCharges in just minutes liRealistic looks.liLong flight timesliReady to fly liMotor type: 370 liDimensions: 23.5 in. L x 6.5 in. H x 6.25 in. WliMain blades diameter: 19.5 inches liTail rotor diameter: 5.75 inchesliColors may varyliIncludes:liRadio control transmitterliAC chargerliEnglish manualliNimh rechargeable battery

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