Tamiya Leopard 2 A6 Main Battle Tank - 56019 (Radio Controlled Model Review)

  Released by Tamiya on June 8, 2004, the Leopard 2 A6 Main Battle Tank (#56019) is the Complete Full Option Kit version, with a battery, charger and 4-channel radio system included.

  A front-mounted double gearbox, incorporating three gear type differentials, with two electric motors, operate together or individually to produce forward/reverse running and pivot turning. Metal torsion bars and suspension arms combine with the wide tracks to smoothly absorb bumps and dips in the terrain and provide high manoeuvrability. In addition, realistic engine sounds accompany the tank as it starts up, drives and stops to idle. The main gun can be elevated, depressed and swung to the left and right.

  The Leopard 2A6 tank was produced between 2001 and 2005 and in that time was used by more than 10 European nations. The Leopard 2A5 featured replaceable wedge shaped armor on the turret, improved PERI-R 17 panoramic Commander's sight with thermal vision, spall liner on the turret interior for protection against splinters, all-electric gun control and stabilization system for easy maintenance and reduced noise, GPS navigation system, electro-pneumatic driver's hatch and a CCD camera mounted on the rear of tank for high-speed reversing. The Leopard 2A6 featured improved firepower including a 55 caliber 120mm smoothbore main gun.

  This model comes with metal bushings, that after a short while, when dust and grit get into them, can actually wear into the metal drive shafts that spin in them - we recommend these should be replaced by a full set of steel shielded ball bearings ASAP.

Rating: 4 RCScrapyard

Servos for RC Models

   Servos are found on all kinds of Radio Controlled Models. RC Touring Cars, Buggys, Trucks, Truggys, Monster Trucks, Rock Crawlers, Airplanes, Helicopters, Boats and Ships for Steering, Throttle Control, Rudder Operation and Wing Flaps.

   For complete RC beginners, choosing the right servo can be confusing, so here are a few tips to point you in the right direction.

   The standard, plastic bushed (bearings) type servos are fine to start with but come with plastic/nylon gears that can break easily in collisions. So, to protect your servo gears to some degree, make sure you have a good "servo saver".

Information and Advice

Electronic Speed Controllers

   ESC were originally developed to be used in conjunction with brushed 27T stock and modified motors in the late 1970s, early 1980s. Compared to modern day Controllers, they were Bulky and heavy, constructed using basic resistors, rheostats, capacitors and transistors, crammed together on a simple circuit board, to provide stepped but smooth acceleration when compared to the old mechanical, servo operated sweeper Speed Controllers. An Electronic Switch to change the direction of current flow was used on some of these early ESC to give reverse operation. Although they were a vast improvement on the old mechanical speedos of the time, they were expensive, jerky to control, and prone to burn out if not carefully looked after.

   As new technology became available, improvements were slowly made, and with the introduction of the new FET (Field Effect Transistors) and some basic mass produced silicon chips, ESC were made smaller and their reliability gradually improved.

   By the mid 1990s, "regenerative breaking" was developed. This meant that energy that would have been lost slowing down the car by effectively turning the motor into a generator, was harvested and put back into the battery. This of course was long before F1 had KERS (Kinetic Energy Recovery System) and adjustable anti lock breaking was introduced.