Monthly Archives: April 2016

Quadcopter Uav on eBay:

Mini Syma X22W RC HD Wifi Camera Drone FPV Real Time APP Hovering Quadcopter UAV

End Date: Sunday Mar-31-2019 23:49:46 PDT
Buy It Now for only: $37.04
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Syma X8C 2.4Ghz 6-Axis Gyro RC Quadcopter 2MP HD Camera UAV UFO Drone
End Date: Tuesday Apr-16-2019 22:16:38 PDT
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There are many different electric remote control planes to choose from out there, making it a little confusing on which model to get. You have your traditional products, bi-planes, and small aircraft, to large jets, and many in between. RC airplanes come in gas powered models as well, but for the beginner, an electric model makes a better choice. The reason for this is that electric is more reliable, has fewer motor parts, and you don’t have to worry about dealing with combustible gases. While electric isn’t as fast as gas, for those just starting out in this hobby, being the fastest isn’t always the best idea.

Many people ask what they should look for in electric remote control planes? There are not easy answers, because each person’s taste is different. However there are some guidelines to help people find the best RC airplanes for them. One of course is your skill level. Those starting out want to buy planes that have simple radio controls, the more simple the better. It is difficult enough to learn how to fly without being confused by all the different things to have to deal with. Up and down, and directional controls and throttle are really all you need to get started.

When you are looking for Electric remote control planes, most beginners don’t want to have to also put their plane together. There are many different RC airplanes that are ready to run right out of the box. This means that you just open the package, charge up the battery pack, and take it out to fly. This way you are up and running and enjoying your hobby right away. Deal with the models that come in kits and that have to be assembled later when you have some experience under your belt.

Durability is also a major factor for beginners when it comes to Electric remote control planes. You want to find RC airplanes that are made from durable materials, and that can be easily repaired and replaced. New people are going to have to get used to flying first, and because of this are going to experience many crashes along the way. You want a plane that is going to be able to hold up to this and come back strong.

One of the most important things about buying electric remote control planes is price. Here you have to be a little careful about picking the right RC airplanes. You don’t want to buy a plane that is too cheap, because these are considered ‘toys,’ not real models. They won’t last as long. One the other hand, if you are new to this hobby, then you don’t want to buy a plane that is really expensive either. You want to be able to fly them, practice your skills, and get good at flying, rather that worrying about damaging your plane.

One other thing about electric remote control planes is that these planes use NiCad or Lithium Ion battery packs. It may be a good idea to buy an extra pack in order to prolong your flight time, and even a car adapter so you can be recharging one pack while using the other. If there is a choice on batteries, pick the Lithium ones, they have a longer lifespan, charge faster, and hold a charge longer than other battery packs.

Welcome to RC Hobby Speeders, inside you will discover an amazing selection of low priced and excellent quality electric remote control planes.

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Holy Stone X300C FPV RC Quadcopter Drone with Wifi Camera 2.4G 4CH 6-Axis Gyro RTF Headless Mode Includes Goggles and Bonus Battery

Holy Stone X300C FPV RC Quadcopter Drone with Wifi Camera 2.4G 4CH 6-Axis Gyro RTF Headless Mode Includes Goggles and Bonus Battery

  • FPV Real Time Video, First Person View and Record Video/ Photo to your iphone or Android phone.
  • Headless Mode and A Key Back, 3D filps and Throttle limit button
  • Free Switching between Right Hand Throttle and Left Hand Throttle
  • Cool design for easily replacing motor and other Parts
  • Come with Bonus Copter’s Battery and Safety Goggles (Under the inner pack)

– FPV Real-Time Transmission for IOS and Android System, Suit for Most of Cell Phone
– Headless Mode and One Key Return are Available
– Left/right Throttle Control Switch Mode
– Adoption 2.4G Auto Connection Technology, Scores of Quad-copters Can be Play at the Same Time
– Function: 3D Rolls, One-Key Roll, Throttle Limit and So On
– Quad-rotor Design Insure More Stable and Powerful Performance and Make All Kinds of 3D Action More Easier
– Ne

List Price: $ 199.99


WLtoys V686 V686G 5.8G Video FPV Drone RC Quadcopter Helicopter + 720P HD Camera

WLtoys V686 V686G 5.8G Video FPV Drone RC Quadcopter Helicopter + 720P HD Camera

  • HD camera with vibration absorber
  • FPV 5.8G real time image transmission
  • Support missile launcher,water connon,hook&basket and bubble blower
  • Large and lightweight airframe with nice durability
  • Full Scale Remote Control with built-in 6 axis gyro system

Item name: WLtoys V686 RC Quadcopter
Frequency: 2.4G
Channel: 4CH
Gyro: 6 axis
Flight Time: 8 Minutes
Remote Control Distance: 100 Meters
Recharging Time: 1-1.5 Hours
Battery For Quadcopter: 3.7V 730mAh(included)
Battery For Transmiter: 6 x AA Battery (not included)
Function: ascend/descend/forward/backward/side flying/hover/3D/LED/camera/5.8G transmission

Package Included: (As pictures show)
1 x WLtoys V686 RC Quadcopter

List Price: $ 89.99


Drone x pro Dual GPS FPV with 1080P 5MP 5G HD Camera Headless Mode Quadcopter

End Date: Monday Apr-1-2019 8:08:08 PDT
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Foldable WIFI FPV RC Quadcopter Drone with 1080P 5.0MP Camera Selfie Drone BK
End Date: Saturday Apr-13-2019 19:32:30 PDT
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Blade Nano QX FPV x2 Pack 30C 1S 150mAh 3.7V LiPo Drone Battery by Venom

Give your drone the power it craves with this Blade Nano QX FPV x2 Pack 30C 1S 150mAh 3.7V LiPo Drone Battery by Venom. This Venom 30C 1S 150mAh 3.7V DRONE series LiPo Battery is engineered for flight, and is our lightest, best performing battery for your drone or quadcopter. Whether you are flying in your backyard or garage, Venom Drone packs deliver consistent power, flight after flight. Venom has over a decade of lithium-ion battery experience and only uses the best LiPo materials, technology and cells available, Venom DRONE LiPo batteries are 5C fast charge capable, allowing you to charge up to five times faster. Spend your time flying, not charging. This battery utilizes a E-Flite Blade JST-MCX connector and you can purchase with confidence knowing this battery comes with our Limited Lifetime Battery Replacement Plan and U.S. based service and support. Power Your Passion with Venom. Due to recent changes in the regulations governing the shipment of lithium batteries the sale of this item is restricted to the continental US. Furthermore, this item can only be shipped ground. Please note these are Federal Regulations not imposed by Venom/Atomik RC. We apologize for any inconvenience. Venom Limited Lifetime Battery Replacement Plan – We are so certain of the quality of our batteries that we offer a Venom Limited Lifetime Battery Replacement Plan on all of our rechargeable battery packs. Venom will, at its discretion, repair or replace defective batteries free of charge within a period of 1 year from the original date of purchase. Year 2 onward, any Venom battery can be exchanged for a brand new battery of same size and type for 30% off original retail pricing. This is a non-transferable warranty and does not cover commercial use, normal wear and tear, crash or water damage, modifications, batteries where the entire pack voltage has dropped below the safe cutoff point, or any damages arising as a result of improper use. We reserve the right to deny replacement to a

Price: $ 6.99
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UDI U818A WiFi FPV RC Quadcopter Drone with HD Camera – 2.4GHz 4 CH 6 Axis Gyro RTF Includes BONUS BATTERY + Power Bank (Quadruples Flying Time)
Looking to add some adventure to your next outdoor excursion? The latest UDI U818A WiFi FPV drone will allow you to immerse yourse…

Eachine Racer 250 FPV Quadcopter Drone with HD Camera Eachine I6 2.4G 6CH Transmitter 7 Inch 32CH Monitor RTF Mode 2

Racer 250 FPV Drone
Camera: 1000TVL, support for HD night, camera angle is adjustable
Flight controller: CC3D w…

Hubsan X4 Quadcopter with FPV Camera Toy
Lightweight airframe with nice durability Latest 6-axis flight control system with adjustable gyro sensitivity Permits super stabl…

Simplified space frame roof with the half-octahedron highlighted in blue

A space frame or space structure is a truss-like, lightweight rigid structure constructed from interlocking struts in a geometric pattern. Space frames usually utilize a multidirectional span, and are often used to accomplish long spans with few supports. They derive their strength from the inherent rigidity of the triangular frame; flexing loads (bending moments) are transmitted as tension and compression loads along the length of each strut.

Most often their geometry is based on platonic solids. The simplest form is a horizontal slab of interlocking square pyramids built from aluminium or tubular steel struts. In many ways this looks like the horizontal jib of a tower crane repeated many times to make it wider. A stronger purer form is composed of interlocking tetrahedral pyramids in which all the struts have unit length. More technically this is referred to as an isotropic vector matrix or in a single unit width an octet truss. More complex variations change the lengths of the struts to curve the overall structure or may incorporate other geometrical shapes.

Space frames were independently developed by Alexander Graham Bell around 1900 and Buckminster Fuller in the 1950s. Bell’s interest was primarily in using them to make rigid frames for nautical and aeronautical engineering although few if any were realised. Buckminster Fuller’s focus was architectural structures and has had more lasting influence.

Space frames are an increasingly common architectural technique especially for large roof spans in modernist commercial and industrial buildings.

Notable examples of buildings based on space frames are:

Stansted airport in London, by Foster and Partners

I. M. Pei’s Bank of China Tower and the Louvre Pyramid

Rogers Centre by Rod Robbie and Michael Allan

McCormick Place East in Chicago

Eden Project in Cornwall, England

Globen, Sweden – Dome with diameter of 110 m, (1989)

Biosphere 2 in Oracle, Arizona

Big Hangar for Iberia Desarrollo Barcelona in Barcelona’s airport

Larger portable stages and lighting gantries are also frequently built from space frames and octet trusses.

Tubular space frames are also widely used in the production of modern motorcycles and automobiles, but monocoque car bodies have been more common since the 1950s. Most purpose built race cars used in sports car and stock car racing use tube frame chassis. Spaceframes have also been used in the latest incarnations of the unorthodox bicycles designed by Alex Moulton. The first automotive aluminum space frame appeared on the Honda NSX, other examples include the Audi A8, Caterham 7, Ferrari 360, and Lamborghini Gallardo.

In February 1986, Paul C. Kranz walked into the U. S. Department of Transportation office in Fort Worth, Texas, with a model of an octet truss. He showed a staff person there how the octet truss was ideal for holding signs over roads. The idea and model was forwarded to HQ USDT in Washington, D. C. Today, the octet truss is the structure of choice for holding signs above roads in the United States.

External links

Academic Links

University of Surrey – Space Structures Research

Informational Links

(The Real) MERO Structures

Uskon Space Frames


octet truss 3D animation

(English)Aluminum alloy spaceframe

(Italian)Strutture Reticolari in Alluminio


Asteca Estructuras

See also

Platonic solids



Backbone chassis

Categories: Buckminster Fuller | Structural system | Structural engineering

I am China Manufacturers writer, reports some information about lc18 , wima capacitor.

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