Overall length 3.8". Drilled for control radius of 1.737" (44.13mm), 1.5" (38mm) and 1.25" (36.75mm). Threaded for 3mm fasteners. Your ball joints made for 3mm or 4-40 bolts through the balls can be installed on this servo arm with 3mm fasteners. Horn fits on splines then clamps with tightening of two fasteners requiring a 2mm socket head wrench. No horn to spline slop is possible with this horn. SKU Number: RRCAA3.5FJ
Overall length 2". Drilled for control radius of 1.5" (44.13mm), 1.5" (38mm) and 1.25" (36.75mm). Threaded for 3mm fasteners. Your ball joints made for 3mm or 4-40 bolts through the balls can be installed on this servo arm with 3mm fasteners. Horn fits on splines then clamps with tightening of two fasteners requiring a 2mm socket head wrench. No horn to spline slop is possible with this horn. SKU Number: RRCLS3.5JR
Overall length 2". Drilled for control radius of 1.5" (38.1mm). Threaded for 3mm fasteners. Your ball joints made for 3mm or 4-40 bolts through the balls can be installed on this servo arm with 3mm fasteners. Horn fits on splines then clamps with tightening of two fasteners requiring a 2mm socket head wrench. No horn to spline slop is possible with this horn. SKU Number: RRCLS3.5FJ
Designed for use in aircraft, car, boat, & helicopter models. Unlike conventional servo arms, they are made of long fiber composites for added strength. Longer versions have increased throw allowing for greater movement in controls. 8 Horns black in color. SKU Number: DUB670
Designed for use in aircraft, car, boat, & helicopter models. Unlike conventional servo arms, they are made of long fiber composites for added strength. Longer versions have increased throw allowing for greater movement in controls. 8 Horns gray in color. SKU Number: DUB671
Designed for use in aircraft, car, boat, & helicopter models. Unlike conventional servo arms, they are made of long fiber composites for added strength. Longer versions have increased throw allowing for greater movement in controls. 8 Horns white in color. Fits Hitec, Tower Hobbies and Hobbico Command servos. SKU Number: DUB672
Designed for use in aircraft, car, boat, & helicopter models. Unlike conventional servo arms, they are made of long fiber composites for added strength. Longer versions have increased throw allowing for greater movement in controls. 8 Horns tan in color.
Designed for use in aircraft, car, boat, & helicopter models. Unlike conventional servo arms, they are made of long fiber composites for added strength. Longer versions have increased throw allowing for greater movement in controls. 8 Horns black in color. SKU Number: DUB673
Designed for use in aircraft, car, boat, & helicopter models. Unlike conventional servo arms, they are made of long fiber composites for added strength. Longer versions have increased throw allowing for greater movement in controls. 8 Horns gray in color. SKU Number: DUB674
Designed for use in aircraft, car, boat, & helicopter models. Unlike conventional servo arms, they are made of long fiber composites for added strength. Longer versions have increased throw allowing for greater movement in controls. 8 Horns white in color. Fits Hitec, Tower Hobbies and Hobbico Command servos. SKU Number: DUB675
 "Aluminum Large Double Servo Arm for Futaba Servos")
 "Aluminum Large Single Servo Arm for JR Servos")
 "Aluminum Large Single Servo Arm for Futaba Servos")
 "Du-Bro Futaba Super Strength Long Horn Set")
 "Du-Bro JR Super Strength Long Horn Set")
 "Du-Bro Hitec Super Strength Long Horn Set")
 "Du-Bro Airtronics Super Strength Long Horn Set")
 "Du-Bro Futaba Super Strength Standard Size Horn Set")
 "Du-Bro JR Super Strength Standard Size Horn Set")
 "Du-Bro Hitec Super Strength Standard Size Horn Set")
 "MPI Aluminum Single Servo Arm - 2\"")
