Introduction of Radio Control Model Product FormatRC models are available in a variety of Product Formats to suit your needs. The Product Format and its three letter acronym are a basic designation which tells you two primary things: 1) what amount of assembly is required 2) what is included with the model. The following table provides a brief summary of each Product Format. More detailed descriptions are listed below the table. Items IncludedProduct FormatAssembly RequiredTransmitterReceiverBatteryMotorESCServosPNP - Receiver ReadyBasic / Moderate ✔ ✔ ✔ RTF - Ready to FlyBasic✔ ✔ ✔ ✔ ✔ ✔ RTR - Ready to RunBasic✔ ✔ ✔ ✔ ✔ ✔ Plug N PlayPNP - PNP or Plug N' Play products are near ready-to-fly models requiring typically less than 1-2 hours of build time. PNP models include the ESC, motor, and servos all pre-installed from the factory. Many pilots prefer PNP models because it allows them the flexibility to use any brand of receiver in their aircraft.Requires: receiver, battery, charger, and transmitter.Ready to FlyRTF - RTF stands for "Ready to Fly". Aircraft that are RTF come with everything you need to fly in the box. A transmitter, battery, charger, receiver, and all other required electronics are included and pre-installed from the factory. All you need to do is charge your battery, attach the wings and stabilizers and you're ready for flight. While everything is included and pre-installed, RTF models can require 30 minutes to two hours of assembly.Requires: Nothing.Ready to RunRTR - RTR means "Ready to Run" and is used to describe vehicles and boats that are basically ready to run/use out of the box. Some models may require minor assembly, but everything needed will be included in the box including the radio, receiver, battery, charger and all accessories. Requires: Nothing.