JR radio control info

JR Radio Control Systems Reviewed
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JR radio control

is one of the better-known brand names in R/C. The following list is a brief summary of some of the JR systems, highlighting a few of the JR models and providing some differentiating features of each system. For a more thorough discussion of each model, refer to http://www.jrradios.com.

JR Quattro This is considered the most basic JR radio control. It is designed for beginners to the hobby, and is based around a 4-channel non-computer airplane FM system. The JR Quattro has 4 - 527 standard servos and includes a servo-reversing feature. This feature is controlled with switches that are located away from the main controls as a safety feature. The Quattro boasts a 3 color LED indicator that gives you a quick snapshot of your batterys voltage. Even though this is the baseline JR model, it has the standard adjustable stick length for more individualized control.

JR 421EX This control is also well suited for beginners, and it is the step up into the JR radio control computer models. The 421EX is a 5-channel system designed for airplanes. It has 4 - 537 ball bearing servos, also with a servo-reversing feature programmed into the computer controls. This model is built for easy programming and includes a two-model memory so you dont have to keep reprogramming the system before switching between planes.

JR XF662 The next jump in JR radio control leads to the 6-channel FM computer model XF662. This system is suited for beginners as well as intermediate fliers. With 4 - 537 ball bearing servos, the XF662 is equipped to handle airplanes as well as helicopters that have 4 servos. The computerized radio stores 6 models of each type of craft.

JR XF662 heli This JR radio control is the cousin of the XF662 and includes all of the same features. The difference is that the XF662 heli has 5 - 537 ball bearing servos, giving it more advanced control of helicopter models.

JR X378 Moving up the chain of JR radio control systems, the X378 controls helicopters, airplanes, and sailplanes. It is for intermediate fliers, and includes a 7-channel computerized FM system. The X378 has 4 - 537 ball bearing servos and an 8-model memory.

JR XP8103DT JR advertises this radio control as a 3 in 1 system. The XP8103DT is designed for the more advanced radio control pilot. The 8-channel computerized system has specific software features for airplanes, helicopters, and gliders. This JR radio control is one of the more advanced models, and it is programmed with more trim control features than the others. It has 4 - 811 ball bearing servos.

JR XP8103DT heli This is the XP8103DT with an extra servo for added control, specifically for helicopters. Other than the additional servo, it has all of the same features of the XP8103DT.