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Characterized by a standard rudder and a stabilizer mounted on the fuselage. Found on the majority of R/C sailplane kits, it's easy to build and works well. A compromise between the conventional and T-tail, the mid-tail has many of the T-tail's benefits and is also easier to build. The stabilizer is mounted at the top of the rudder, where it is less affected by the wake created when air flows over the model's wing. This design can be difficult to build. The stabilizer is bent into an upward V shape, and there is no rudder. A radio with mixing capabilities is usually required.

Sailplane Basics
  Sailplanes can be excellent trainers. Often less complex and expensive than powered models, their stability and slow flight are perfect for beginners. R/C sailplanes can feature several different tail configurations. The conventional tail is recommended for new hobbyists.
Most fall into one of two types:

Thermal Sailplanes & Slope Soarers
Thermal Sailplanes
  Thermal Sailplanes ride on the continuous currents of warm air that rise from the land. They seem to float across the sky. Pilots must be able to detect invisible thermal currents and take advantage of them (rising warm air is often found over such terrain as freshly plowed fields and paved parking areas). With experience, pilots can keep their craft in the air for 15 minutes or even longer.

Slope Soarers
  Slope Soarers get their lift from wind that rises when it meets a hill or upward slope. The lift lasts as long as the wind blows. Because they fly in stronger wind conditions, slope soarers are faster than thermal sailplanes, and the extra speed gives them excellent aerobatic capabilities.

Dynaflite Talon

Hand Launch
The smallest sailplanes in the thermal category feature wings that span up to 59-60 inches and can be launched with a hand-toss. Such small models may require miniature radio equipment, which costs a bit more than standard size. Thus, you might prefer to start your R/C career with a 2-meter model.

Tower Hobbies Vista 2-Meter ARF

Two-Meter
Spanning 72 to 79 inches, these are the most popular type of sailplanes for beginners. The added size gives them greater stability, and they will usually accept standard 2-channel radio equipment. Launching is best done with a hi-start or winch (explained later).

Dynaflite Bird of Time ARF

Open Class
"Open Class" encompasses all sailplanes with wingspans exceeding 100 inches. Because of assembly difficulty and slow control response, they are not recommended for beginners. Like Standard Class models, however, they can carry a lot of additional weight for options - and are absolutely majestic in flight.

Tower Hobbies EP Vista Sailplane ARF

Electric Sailplanes
For easier launching and thermal chasing, some sailplanes are designed to include electric (battery powered) motors and propellers. The motor may be turned on and off during flight to power the sailplane from one thermal current to the next. However, the weight of the motor and battery does inhibit gliding performance.

Dynaflite Hi-Start

Great Planes Power Pod

Launching Equipment
Depending on the sailplane you select, you can launch it in several ways:

• Hand-Launch— If you have a small model or slope soarer, simply stand at the top of a hill or slope and throw it into the lift. No additional equipment—other than a good arm—is needed! Small sailplanes can also be "hand-towed," like a kite, into the air.


• Hi-Start— This is basically a very long slingshot, consisting of 50-100 feet of surgical tubing. One end is staked to the ground...the other is fastened to approximately 200-400 feet of nylon line. A parachute and ring are attached at the farthest end of the nylon line. After hooking your sailplane to the ring, you stretch the surgical tubing tight and release—which quickly sends your model up to altitude. When the tension is gone from the tubing, your model simply flies off the line. Then the parachute opens and gently lays the line out on the ground, downwind.

• Power Pod — A third method of launching uses an electric motor or glow engine, mounted into a pod on the top of the model. The engine carries the sailplane to very high altitudes and then is either shut off or runs out of fuel. Due to the additional weight, gliding performance will suffer.

  First-time pilots should always seek the help of an instructor. And an important part of working with an instructor is making sure that both of you use radios with "trainer system" or "buddy box" capability. The trainer system allows you to connect your radio to your instructor's, using a cable. You'll still be the one controlling your model, so long as your instructor holds down the trainer switch on his transmitter. But if you start having trouble, all the instructor has to do is release the switch to take over full control.

 Most entry-level sailplanes require a radio with only two channels of control, but you're better off buying a 4-channel system—you'll probably pay less for it in the long run.

See the Radio System section for complete information and great sailplane starter radios.Click HERE

  R/C model building adhesives are also required, and differ from the white glue and model airplane cement you may have worked with in the past. Cyanoacrylates are commonly used. These are glues specially formulated for working with wood, which provide a range of curing speeds—giving you as little or as much time as each assembly step requires. "Thick" cyanoacrylates also help to fill slight gaps between parts.

  Modeling Epoxies are two-part adhesives, consisting of a resin and a hardener. At steps where very strong bonds are critical, a plane's manual will often recommend epoxy. The resin and hardener must first be mixed, then applied to the surface—so mixing cups, mixing sticks and inexpensive, disposable epoxy brushes also come in handy.

Accessories
 Relatively few field accessories are needed to fly an R/C sailplane. If your model is a Slope Soarer, you may need nothing more than a few tools for minor repairs and adjustments.

  Thermal Sailplanes will require a few additional items, depending on your choice of launching method. When using a hi-start, nothing beyond the hi-start itself is necessary. If you choose to use a power pod, you will probably also need an engine (most 2-meter sailplanes require a .049 engine), paint or finishing supplies for the pod, plus fuel, a starting battery, wrench and glow head clip.

  Electric-powered sailplanes often include a motor and propeller as part of the kit. The only additional accessories you might need would be a battery and charger. Again, follow the Accessories Required links for the model you choose to see a list of the field accessories needed.