The Panter`s webstore
Mail: aquila_grande@yahoo.no
Main page: www.panteraconsulting.com
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The Panter`s webstore
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Mail: aquila_grande@yahoo.no Main page: www.panteraconsulting.com
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RC airplanes and hobby equipment
Welcome to this online store for hobby articles. Buying hobby equipment online, you can get it for a better prize than from your local stores. Often you can also find items or product variants you do not find locally.
By clicking on the banners below, you will enter a specialized online store for each cathegory. There you can learn more about or order each product exhibited on this page, and many other products of the same cathegory.
ONLINE STORES WITH BIG COLLECTIONS OF AIRCRAFT MODELS
Xenon Project - well organized collection of RC models - In this store you will find all kind of RC models and equipment for RC models well organized in cathegories so that it is easy to find exact that model you are looking for, or to get a good idea of what is best to buy. There are models in all prize classes and for all experience levels: Scale models and fantacy vehicles. Helicopters, aircrafts, race cars, boats.
Special store for aiplane models driven by nitro engines - This is a very great collection of nitro driven airplane models with a v rious engine technology: Piston engins, jet turbine engines, nitro ducted fan engines.
A big collection of radio controlled model helicopters -Here you find all types of helicopter models from models simple to fly for evferyone to advanced acrobatic models. You also find any type of accessories for model helicopters.
Some models present in the collection: Yellow 2007 ESKY HoneyBee #4 , P2007 New Esky 6 CH Honey Bee King 2 II CCPM 3D Aerobatic , 2007 Walkera Dragonfly 4-1 Fixed Pitch Electric RC Helicopter Latest Version, Blue Esky 4-Channel Coco Lama V4 Revolution Co-Axial , 6-Channel Predator 400 3D Aerobatic Ready-to-Fly CCPM Brushless Electric RC Helicopter w/ Aluminum Tail & LiPo Setup, Hottest Micro Heli! 5" Micro-Size Zip Zap , New Walkera 7 CH Belt-Driven Dragonfly 35#C Pro 3D Aerobatic , Esky-Hobby ROBINS 22 4ch R/C Mini Electric Helicopter , 4-Channel COLCO APACHE AH-64 Longbow 4CH R/C Helicopter, Black Hawk 500 CCPM ARF Brushless Electric , Yellow Syma DragonFly 2-Channel , 7-Channel 3D Aerobatic Walkera DragonFly , 2007 Eagle 50 3D Aerobatic 6-Channl Radio , 2007 Newest Version ESKY HoneyBee #5 CP2 6-Channel , 2007 Newest Version 6CH Walkera #76A-1 CCPM 3D , White Syma DragonFly 9093 , 2007 4-Channel Falcon 40 , Pocket Helicopter 2CH Indoorr, Walkera 4 CH Dragonfly 53-1 CoAxial.
RC AIRCRAFTS AND OTHER HOBBY PRODUCTS -
Wireless models of aircrafts cars and boats. Models in all size and prize cathegories, and suitable for all ages. Electric driven models that are suitable for indoor and outdoor use, and extreme speedy gas driven models for the advanced modeller. Electronic sets, chemistry kits, magic tricks and kits, computers and a lot more.The collection of electronic components and electronic function modules is very great. In this collection you can find components both for hobby use, for professional laboratory use and for other professional work. The collection of airsoft guns and accessories for airsoft guns is perhaps the greatest you can find. You find airsoft replicas of nearly every existing gun.
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RADIO CONTROLLED AIRCRAFT EXAMPLES You see here some examples of models available from the above collections. By clicking at the buy-buttons, you will also find links to a lot of other models and other hobby items. Micro plane for indoor use
Shapeshifting vehicle - car - boat- aircraft in one vehicle
Crash-proof twin-engined electric RC airplane
Helicopter models
Stelth bomber RC model
Remote control twine-engined electric aircrafts
Advanced but crashproof combined boat-airplane - hydroplane
Advanced ducted fan RC fighter jet
Advanced acrobatic rc electric biplane
REMOTE CONTROLE RACING CARS Model cars from HobbyTron - This is an example of the many hobby cars in this collection. You can find them all by boing throug this product link.
Nitro driven and electric redcats: Nitro driven redcats: Hurricane XP PRO, Monsoon XP, Avalamche XP, Tornado BP, Tsunami, Tsunami ultrawide, Volcano SV SV Pro, Tremor ATV XTB XtG XTK XTR. Electric redcats: Lightning XTK, Tornado EPX, Tsunami EPX, Volcano EPXr.
NitroRC.com - nitro powered RC race cars : This shop has a big stock of nitro motor powered race cars. You also find electricly powered cars and some RC airplane models.
Airsoft guns - AEG, spring and gas driven HobbyTron has a complete collection of airsoft replicas of real life weapons.
Zephyr sport - airsoft and paintball gun collection - This is a special warehouse of airsoft and paintball guns. Here you can find any product within theese categories.
ROBOTS AND ROBOT BUILDING KITS An example of the many hobby robots you kan find by clicking at the link, both simple robotic toys and advanced programable robot kits.
PARTS ANC ACCESSORIES FOR CAR REPAIR AND UPGRADE These are three online stores with affordable parts and equipment for any car. The titles over the banner tell which areas each store is best at, but all stores have equipment of all types. Technical parts for repair and performance
Internal and external equipment and comodities, car electronics and GPS navigation
Comodities to take with you on your journey, car electronics, workshop tools.
Books reading materials and elecronic media about cars and other motor vehicles
Electronics Consumer electronics: Computers, Televisions, DVD Players / Recorders, Home Audio / Video, MP3 Players / iPod Accessories, Satellite Radio, Headphones, Mobile Audio / Video, GPS / Navigation, Home Electronics, Telephones & Fax, Personal Electronics, Electronic Accessories
Through this link you find a very comprehensive collection of electronic modules,electronic components and computing equipment. The collection of electronic parts and components is perhaps one of the greatest you can find.
Electronics Kits, components and
tools
- please click here
SOFTWARE AND ELECTRONIC GAME SGamePass - By membership you get a new FREE game of your choice every month!. Over 550 games to choose from and new releases every week. Get 25% to 75% off on all other games you decide to purchase. You can get advance notises of new releases and events.
Games and software for very good prizes: In this shop you will find electronic games of all chathegories: Action,Adventure, Arcade, Board Games, Cards & Casino, Classics, Collections, Flight Sims, Hunting & Fishing, Kid Games, MahJonng & Tetris, Pinball, Puzzle, Racing, Role Playing, Simulations, Sports, Strategy, Trivia, War Games. This is also a general store for software and computer accessories where you can find any kind of software for good prizes.
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Optical instruments - cameras, telescopes, binoculars microscopes, night vision devices
A great store of optical and audiovisual products:
In this store you can find all kind of optical and audiovisual equipment for hobby, education and proffessional use.
Articles for use by our visitors.
Here is an article about how helicopters work. A complete list of all articles is given here: nnnn
THE WORKING PRINCIPLES OF HELICOPTERS
The advanced hobby helicopters presnted above are operated by the same mechanical and aerodynamilcal prinsiples as a full scale helicopter.
Helicopter lift is obtained by means of one or more power driven horizontal propellers which called Main Rotor. When the main rotor of helicopter is turning it produces lift and reaction torque. Reaction torque tends to make helicopter spin. On most helicopters, a small rotor near the tail which is called tail rotor is counteracting this torque. On twin rotor helicopter the rotors rotate in opposite directions, their reactions cancel each other, the same is through about the four-rotor hobby helicopters depicted above.
Main rotor
The main rotor produces the lifting force and force for all movement. The force depends upon the angle of the rotor blades against the axis and the rotating speed of the main rotor.
Each blade produces an equal share of the lifting force so that the weight of a helicopter is divided evenly between the rotor blades. If the helicopter also accelerates up, the rotor also has to provide for the force needed for acceleration. Furthermore it has to provide the force to overcome air resistence towards the helicopter due to upward motion.
The main rotor also gives force to move foreward, backwards or sidewise by tilting the rotor.
Tail rotor
The spin of the main rotor will make a force on the rest of the helicopter that brings it to spinning in the opposite direction if something does not counteract this spinning. This is called torque reaction. The tail rotor compensates for this torque thus holding the helicopter straight. On twin-rotors helicopter or the four rotor hobby helicopters, the rotors spin in opposite directions, canceling out this reaction. The tail rotor in normally linked to the main rotor via a system of driveshafts and gearboxes , that means if the main rotor makes one turn , the tail rotor is also turn a definite number of times. Most helicopter have the tail rotor turn 3 or 6 times for each turn of the main rotor.
Why does the rotor effect force
It is commonly said that the blades of a helicopter rotor acts like a wing, but it is more like a big propellar actually. When a rotor blade regulated to an angle against the rotating axis moves aroud, it compresses the air at the underside making the pressure at that side increase. Compressing air downwards mens that air is taken away from the upper side so that the air pressure her decreases. The difference of air pressure between the under-side and upper side makes a force that can be used for lifting and horisontal motion. Techically one uses the Bernoulli equation to calculate the pressure and thereby the lift. This use gives right answars, but the logical explanation for using this equation for this application is usually wrong.
Lifting dissymmetry
All rotor is allways experiencing Dissymmetry of Lift in forward flight . As the helicopter gain air speed , the advanceing blade develops greater lift because of the increased airspeed and the retreating blade will produce less lift , causing the helicopter to roll. This has to be compensated for in some way . The compensation is mostly effectuated passively by blade flapping. Increased airspeed and lift on the advancing blade will cause the blade to flap up and decreasing the angle of attack . The decreased lift on the retreating blade will cause the blade to flap down and increasing the angle of attack . This combination equalizes the lift over the two halves of the rotor disc.
Regulating the force of the main or tail rotor.
This is usually done on a real helicopter by regulating the angle of the rotor blades without changing the speed of the rotors, thus giving the rotors more or less power. After start the rotor is accelerated up to the working speed without the blades twisted. Then the blades are twisted to the angle that gives the force one needs at any time.
At the same time the force of the motor must be regulated up or down by adding or decreasing the gas given.
The same principles are used in advanced hobby helicopters.In a simple hobby helicopter the force may be regulated by changeng the speed of the rotors because the mechanical system used here is simpler.
Regulating the flying direction for the helicopter
A helicopter can hover still in the air, fly forewords, backwords or sidewords. This is done by tilting the helicopter main rotor so that a component of the force from the rotor points in the wanted flying direction. The vertical force component of course still is used to make the helicopter hover. The force used by the motor must also be regulated so that it deliveres enough force both for the horisontal component and the vertical component.
The mechanical regulation of the rotor blade angles and tilting.
This is done by the folowing mechanism in a real helicopter.
Swash Plate Assembly : The swash plate assembly consists of two primary elements through which the rotor mast passes, one of which is a disc, linked to the cyclic pitch control. This disc can of tilt in any direction but does not rotate as the rotor rotates. This non-rotating disc is attached by a bearing surface to a second disc, often refered to as the which turns with rotor and linked to the rotor blade pitch horns.
The Collective Control : When pilot raises the collective control or pull collective control up , the collective control will raises the entire swash plate assembly as a unit . This has effect to the blades by changing the angle of all blades simultaneously.This causes to increase angle of attack and give more lift.
The Cyclic Control : The pilot has a so-called cyclic control stick at his disposal. The cyclic control will push one side of the swashplate assembly up or down, so that the rotor will be angled in the desired direction. This causes the helicopter to move left or right, forward or backward.
In a hobby helicopter, the remote control system is usually more authomatic, freeing the pilot from thinking about blade angles or tilting. He only has to decide if he will move up or down, in what direction and at what speed.
