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PRECISION and HEAVY DUTY ACCESSORIES for exacting, or high load RC aircraft applications using Kimbrough molded couplers for the Rotary Driver System (RDS). 

The Original Rotary Drive System components can be found in the table below. For Generation 2 RDS click here.

 


RDS demo

Pictured above are the Heavy duty RDS components as they would relate to the servo and Kimbrough couplers in a typical wing (flap) installation.


See the website http://www.genie.rchomepage.com for details about the RDS concept of moving hinged surfaces on R/C aircraft. Just down load the PDF file named "File 06 Rotary Drive System".

 

The Kimbrough Products molded couplers servo accessory package (Item #500) and the custom machined IRF accessory parts described below now make RDS installations possible for heavy duty applications.

 

RDS parts

The accessories, as seen above, consist of replacement aluminum coupler tops, hardened drive shafts and matched precision pockets ready to install in your R/C aircraft.


Description of the Precision HD Accessories

TEMPERED ALUMINUM COUPLER TOPS W/ .125 or .0937 BORE : (Used in place of the tiny Kimbrough coupler top). It is cross-drilled and tapped so as many as 4 setscrews (extras provided) may be used.

FLAP DRIVE SHAFTS: These are die-formed from 6" pieces of precision ground steel drill rod, then hardened and tempered. A 90 deg. bend is located to leave 5" of main shaft to trim to the length actually needed (3/32" shafts leave 5-1/4" of main shaft). The main shaft section has a 3" long flat ground into it to seat 2 of the 4 setscrews. Shafts can be shortened to as little as 2-1/2" and still leave the necessary 1/2" of the flat available. (Cutting with cut-off wheel on Dremel reccommended)

AILERON DRIVE SHAFTS: These are similar to the flap shafts, but have different bend angles. A 45 degree bend allows up to 45 degrees deflection. A 32 degree bend limits deflection to 30 degrees but doubles the effective servo torque and resolution.

ASSEMBLED POCKETS: We fabricate these pockets utilizing precision jigs, to the exacting specifications required by the Heavy Duty RDS system. Our pockets are matched to our drive shafts for a "buzz" free fit. The 1/8" pockets measure 3/4"x2-1/4"x7/32"thick with a 1-1/4" opening. The 3/32" pockets are 1/2"x2"x3/16" thick with a 1" opening.


New Features

Builder' Gallery

Check out what other builders are building using RDS.

Articles

Read reviews and technical data about Heavy Duty RDS.


 

 

PRICE LIST AS OF 09/2011 (prices subject to change)

  1/8" for any big power plane or glider. 1/4 scale, pattern ships, and jets.
  TACT18  Tempered Aluminum coupler top for 1/8" driveshafts  4.50 ea. 
  AP18 Assembled precision pocket for 1/8" drive shafts. 6.00 ea.
 ADS1845 1/8"aileron drive shaft. 6.00" long with 45 degree 1.00" bend. Hardened and tempered.  3.00 ea.
 ADS1832 1/8"aileron drive shaft. 6.00" long with 32 degree 1.00" bend. Hardened and tempered.  3.00 ea.
 FDS18 1/8"flap drive shaft. 6.00" long with 90 degree 1.00" bend. Hardened and tempered.  3.00 ea.
 2A2F18

Package deal for 1/8" including 2 -45 degree aileron and 2 -90 degree flap driveshafts, 4 aluminum coupler tops, 4 assembled pockets and 8 setscrews.

Note: You also need 2 pair of #500 Kimbrough Couplers to complete your installation. See below to order them also.

50.00
 NEW   3/32" for 2-3 meter sailplanes, up to .40 sized power planes and slopers.  
 TACT332  Tempered Aluminum coupler top for 3/32" driveshafts  4.50 ea.
 AP332  Assembled precision pocket for 3/32" driveshafts.  6.00 ea.
ADS33245  3/32"aileron driveshaft. 6.00" long with 45 degree 3/4" bend. Hardened and tempered with setscrew flat.  3.00 ea.
ADS33232 3/32"aileron driveshaft. 6.00" long with 32 degree 3/4" bend. Hardened and tempered with setscrew flat.  3.00 ea.
FDS33232  3/32"flap driveshaft. 6.00" long with 90 degree 3/4" bend. Hardened and tempered with setscrew flat.  3.00 ea.
 2A2F332

Package deal for 3/32" including 2 -45 degree aileron and 2 -90 degree flap driveshafts, 4 aluminum coupler tops, 4 assembled pockets and 8 setscrews.

Note: You also need 2 pair of #500 Kimbrough Couplers to complete your installation. See below to order them also.

50.00
  NEW   1/16" for competition handlaunch gliders, small electrics and parkfliers.  
 ADS11645 1/16"aileron driveshaft. 6.00" long with 45 degree 5/8" bend. Hardened and tempered. Modeler to use with Kimbrough coupler top and make own pockets. Modeler to grind setscrew flat as needed.  2.75 ea.
 FDS116 1/16" flap driveshaft. 6.00" long with 90 degree 5/8" bend. Hardened and tempered. Modeler to use with Kmbrough coupler top and make own pockets. Modeler to grind setscrew flat as needed.  2.75 ea.
   Kimbrough molded coupler parts (servo adapters)  
 #500

 1-Pair Kimbrough molded coupler parts. These are needed to mate the aluminum coupler tops with your servos. (universal servo adapters included) This package includes one pair of parts. One part set needed for each surface you are equiping with RDS.

Note:If you are ordering the "Package Deal" you need two pair of these also.

 7.00 pr.


Shipping is additonal and via Priority Mail (3day),

Typical shipping cost to lower fortyeight US states is

$6.00 for most orders (one or two sets).

Typical international shipping is $15, and takes 4-7 days (email for a quote).


RDS Ordering Info

There are two ways to order. You can either mail a check or money order for the amount of the items you would like plus shipping and handling in US $. Make the check payable to either Walt Dimick or I.R.F.Machine Works, Inc. Send your order to:

I.R.F. Machine Works, Inc.

P.O. Box 22024

Milwaukie, Oregon 97269 USA

vox (503) 421-1808 email: wdimick@aol.com

Please include the address you would like the shipment to go to, with your check.

Or

You can pay for your purchases by Paypal. Paypal allows you to pay by credit card. You need to sign up with Paypal inorder to use their service. Just follow the link below to sign up. If you are already a user of Paypal, go to their web site (follow the link below) and send your payment to wdimick@aol.com . Use the "message" box to indicate what you are ordering. Or just email your order detail to me, and I will send you a Paypal invoice, which you can then just click to pay through Paypal. 

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irf logo

Also manufactures the Little BIG Winch

for launching R/C sailplanes.

Check out the Little Big Winch web site