R4 Electric Outrigger Kit for 4S

Now available!


New R4 Fast Electric Outrigger Kit (4S)

Completely new design for 4S power.

This boat was designed around a 4S pack and 3656 motor.
Aimed squarely at P Limited racing, this is the most competitive hull out there.

The new sponson design by Tom David has tested very well.
So well, that we are converting all of our new and existing outriggers to this state of the art design!

All of our outriggers were originally designed by IMPBA Hall Of Fame member Rod Geraghty. Rod is no longer with us, but his spirit lives on with the entire "R" series.

This hull is the current state of the art for riggers, 
Designed for very low hydrodynamic drag with water shearing and anti capillary features, this hull is fast, and turns are incredible!

 We have reduced the amount of required sanding by 90%, so this kit builds very quickly.
In fact, even if you have no building experience at all, this is an easy kit to build.
Couple the easy building with it's record setting performance, and you have a true winner!

This is considered a full kit, as it includes carbon boom tubes, aluminum boom tube sleeves, boom tube collars, cowling and Pre-Sharpened aluminum turn fin with mounting hardware.

This kit is highly pre-fabricated, and assembly is easy, thanks to the 38 page photo illustrated, step by step assembly manual.


Designed for 4S operation and 5000 mah.

Maximum motor size is 3660 (bigger with cowl mods)

 R4 Specifications:
Length- 30 inches
Beam- 20 inches
Weight- 5.0 to 7.5 pounds
Motor-  36x60mm inrunner
ESC- 150-180 Amp

Radio- 2-3 channel


Full Kit Includes:

Laser cut Birch plywood for the entire kit
CNC machined high density foam sponson cores
.093 Hardened PRE- SHARPENED Aluminum turn fin with mounting hardware
.125 6061 Aluminum Motor Mount

Anodized aluminum sponson sleeves (4)
Carbon Fiber Solid boom tubes (2)
Aluminum boom tube collars (4)
Brass tub inserts for boom tubes (2)
Vacuum formed PETG Stealth Cowling

38 Page Photo Illustrated Building and Setup Manual

 Our R4 Ultimate Hardware Set includes everything you need, except motor, ESC, radio and building/ finishing materials.

 We recommend our aluminum servo mount for this kit (included with the Ultimate Hardware Set).

We also have a pre-bent shaft tube for the R4 (included with the Ultimate Hardware Set).


Here is one example of what we like for 4S operation.
This would qualify for P Limited in most areas:

We really like the SSS 3656/2030kv 6 pole.
Great on 4S, and can be used on 6S as well!

The best value for us is the Flycolor 150.

Look for true 60c or higher.
You can spot imposters by the wire size. If the battery says "130C" and it has 14 gauge wires, look elsewhere.
Good batteries have 10 or 8 gauge wires.

We like THESE

For 4S operation, the efficiency of this boat allows you to use a lot of prop. 
If you use quality components, you can use our 4019 prop for great performance.
Also look at the ABC 1916-17-45 and 1817-17-45.
Note that we are still testing motora and props, and will update the Setups section of the website with any info.

Current Reviews: 1

  • Model: 6515
  • Shipping Weight: 9 lbs
  • 0 Units in Stock

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$149.00 $99.00Save: 34% off

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This product was added to our catalog on Tuesday 03 January, 2023.

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