Optical Kill Switch

These quality optically isolated electronic kill switches allow you to kill your engine from a spare channel on your radio should your throttle servo malfunction.  What would you do if you started your engine and the throttle servo was at full power instead of idle because the servo malfunctioned?
It just recently happened at our field on a 40% 42 pound engine that produces about 17 horsepower swinging a 32" prop.  - With an E switch it is a simple matter of hitting a switch and killing the engine.  What would you do if this type of failure occurred to you?  Would you have been hurt because your 40% plane ran into you at full power?
Specify Electronic or Magneto.

Charge Receptacle

It is important to keep dirt out of your switch system. When using a switch with no dust cap this  machined charge recepticle by Madison is universal and fits all brands of radios charge harnesses. Keeps dust and dirt out with a twist on cap.

Jomar Battery Backup

Functions with JR, Futaba, and AIR. Wired.

Jomar Glow Driver

Glow drivers are used to provide power to the glow plug below selected throttle settings. This glow heat reduces the likelihood that the engine will die at idle or low power settings.

Jomar Sequencing Gear Doors

Gear servo and door servo travel time individually adjustable from full speed to 10 seconds. Gear doors may remain open ala P-47 or close after lowering gear ala P-51.

McDaniel Glow Driver - Single

Glow drivers are used to provide power to the glow plug below selected throttle settings. This glow heat reduces the likelihood that the engine will die at idle or low power settings.

Jaiccio Regulators & Switches

Jom Odinno - former 35 year columnist for RCM and the O of S&O Proportional radios,  developed this regulator years ago for high performance IMAC-Giant Scale and Pattern  planes. It weighs about 1/2 oz, is set to either 6 volts or 5.1 volts, and is used  on our 42% planes. Input voltage up to 15V and output current up to 5 amps. (A 42% plane with 13 digital servos will draw about 2.8 amps average if the plane is set up correctly.)

Regulator only - 5.1 or 6V.

Regulator & Switch.

Ultra Plug Connectors / Deans Plugs

Ultra Plugs prevent reverse polarity. 2, 3, or 4 pin connectors and Ultra Plug connectors are perfect for soldering your own connections. Male and female connectors available.

JR Heavy Duty Charge Switch

This switch is very popular with modelers who fly IMAC and giant scale planes. This rugged switch has a built in charge port allowing charging and load testing through the switch faceplate. JRPA004.

PC Data Transfer by JR

Key Features:

JR Single Transmitter Case

Don't wait until you break your transmitter and then buy a case. JR's transmitter case comes with foam cutouts for 1 transmitter, space for a glow driver, tachometer, glow-lighter and other small tools.

JR Deluxe Switch Harness

Deluxe Switch Harness, Gold

JR Neck Strap

Don't worry about dropping your expensive radio while flying with this JR neck strap.

JR Small Switch Harness

Small Switch Harness W/ Charge Cord

JR Long Gimbal Sticks

Key Features:

JR Micro Switch Harness

Micro Switch Harness

JR Receiver Battery Packs

Extra receiver batteries provide higher flight times with reduced pack size. Produced from high quality Sanyo cells these double heat shrunk batteries have welded tabs with strain relief and are wired with JR heavy duty wire for the lowest resistance.

4460 - 2400 mAh 4.8V 4-cell Flat

4540 - 3000 mAh 4.8V 4-cell Flat

4550 - 3000 mAh 6V 5-cell Flat

5001 - 2500 mAh 4.8V 4-cell Flat

5004 - 4500 mAh 4.8V 4-cell Flat

5006 - 2500 mAh 6V 4-cell Flat

5008 - 2700 mAh 6V 5-cell Flat

9080 - 800 mAh - 622, 8103, 378

9180 - 800 mAh - PCM10, 10S, 10SX, SXII

954 - 600 mAh MAX 4

965 - 1100 mAh PCM10X

JRPB 5011 - 2500 mAh 9.6V TX pack NiMH

JR Powersafe Batteries

Available in NIMH or LIPO, PowerSafe batteries are wired with 22 guage HD connectors and EC-3 connectors. 2000, 2400, 4000, and 6000 mAh available.

2.4 GHz Conversion Module

Switching your 72 MHz system is as easy as 123. Snap in your new module, install your new antenna, and install your new 2.4 GHz receiver and your 72 MHz radio is part of the 2.4 GHz generation.

Spektrum Flight Log

The flight log plugs into your 2.4 JR or Spektrum receiver or charge port and provides numerous readouts regarding the performance, signal strength, and operating voltage of your system. An invaluable setup tool to insure your system is setup for maximum performance.

Toggle Switch Covers

These toggle switch covers by Madison provide a distinctive feel for your retract, smoke, or flap switch so you don't inadvertently flip the wrong switch.