XT MAIN ROTOR HEAD SYSTEM
FOR ALIGN TREX 550/600 SERIES HELICOPTERS

Item Number: AT550/600-XTS
Installation Diagram: CLICK HERE

Price: $116.95
Material: Aluminum 6061-T6
Models: all ALIGN TREX 550E (V1/V2), 600E/ESP, and 600E PRO series. Also compatible with the Outrage Fusion 50 Electric and Velocity 50/N2 Nitro series with 10.0mm O.D. main drive shafts (see Design Notice below for additional required components).

Need Replacement or Extra Heavy-Duty Ball Links? CLICK HERE (AT550/600-XTSRK)

Note: the new KDE Direct 550/600 Series XT Main Rotor Head System provides the most innovative and highly-engineered control mechanics to install confidence in any flying style. Every detail was scrutinized and continually reviewed to provide the ultimate system for Flybarless flight control. To address the common fears of current direct-control Flybarless systems:
(1) Bolt Shear – the XT system uses a custom-machined, Class 12.9, M3 socket head collar cap screw to attach the Main Rotor Grip Control Links to the Main Rotor Holder Arms, significantly increasing the strength and durability of this critical junction for safe Flybarless control.
(2) Component Vibration and Loosening – the XT system is fully Nylon-Insert Locknut captured at all critical components to prevent any chance of vibration and high-usage related loosening of both the Flybarless control junction and the ball link adapters
(3) Flybarless Resolution – the XT system has extended Main Rotor Holder Arms from the centerline of the main shaft, providing an increased servo travel and resultant Flybarless control resolution for all 3-axis systems, including the highly-popular Mikado™ VBAR® and BeastX® units.
(4) Versatile Connections – the XT system provides a versatile and robust method for proper ball-link alignment, without worry of slop developing from repeat use and cyclic loading. Simply adjust to your liking with the Class 12.9 M3 set screw system and when perfect, lock the position down with the included M3 Nylon-Insert Locknut.

Design Notice: to achieve the best possible setup and perfect alignment of the flight mechanics, it is recommended to use the following new ALIGN flybarless components with the new design:

Main Shaft: H60243 or H60247, TREX 550/600PRO or 600ESP DFC Main Shaft
Dampers: H60244, TREX 550/600DFC Head Damper
Flybarless Grips: H60204, TREX 550/600 Metal Main Rotor Holder
Feathering Shaft: H60006, TREX 550/600 Feathering Shaft
Feathering Shaft Sleeve: HN6061, TREX 550/600 Feathering Shaft Sleeve

Click HERE to view the Design Presentation.

Includes:
– One (1) TREX 550/600 Series Aluminum XT Main Rotor Head System

– Two (2) TREX 550/600 Series Aluminum Main Rotor Grip Control Links, XT Version
– Four (4) Radial Ball Bearings 3 x 7 x 3 mm
– Two (2) Bearing Collars 3 x 4.75 x 5 mm (Stainless Steel 304)
– Two (2) KDE Direct 550/600 Series Ball Links, Heavy-Duty 4.95mm
– Two (2) M3 x 0.5 x 20 mm Socket Head Set Screws (Class 12.9 BP Alloy Steel)
– Two (2) M3 x 0.5 Nylon-Insert Locknuts (Zinc-Plated Class 8 Alloy Steel)
– Two (2) TREX 550/600 Series Aluminum Main Rotor Holder Arms V2, XT Version
– Two (2) Custom M3 x 0.5 x 26.5 mm Socket Head Collar Cap Screws (Class 12.9 BP Alloy Steel)
– Four (4) M3 x 0.5 x 6 mm Socket Head Cap Screws (Class 12.9 BP Alloy Steel)
– Two (2) M3 x 0.5 Nylon-Insert Locknuts (Zinc-Plated Class 8 Alloy Steel)
– One (1) TREX 550/600 Series Aluminum Flybarless Main Rotor Housing, XT Version
– Two (2) M3 x 0.5 x 14 mm Socket Head Cap Screws (Class 12.9 BP Alloy Steel)

Finish:
Clear anodize, mirror-polish CNC gloss

Line Break - Medium Blue

For those pilots wishing to upgrade specific component instead of the whole head system, KDE Direct offers the following separately as an upgrade replacement for the stock Align DFC component:

FLYBARLESS MAIN ROTOR HOUSING, XT VERSION
FOR ALIGN TREX 550/600 SERIES HELICOPTERS

Item Number: AT550/600-MRHFB-XT
Installation Diagram: CLICK HERE

Price: $55.95
Material: Aluminum 6061-T6
Models: all ALIGN TREX 550E (V1/V2), 600E/ESP, and 600E PRO. Also compatible with the Outrage Fusion 50 Electric and Velocity 50/N2 Nitro series.

Note: the Flybarless Main Rotor Housing, XT Version upgrade is used in the KDE Direct TREX 550/600 Series XT Main Rotor Head System and provides a FEA-optimized design for unprecedented strength and light-weight characteristics; with the incorporation of the innovative clamping mechanism for accurate and crisp feel for all flying styles. Please review the full system for more details.

The Flybarless Main Rotor Housing, XT Version is also compatible with the stock ALIGN DFC Main Rotor Head Upgrade Set (#H60239A) as an upgraded replacement.

Includes:
– One (1) TREX 550/600 Series Aluminum Flybarless Main Rotor Housing, XT Version

– Two (2) M3 x 0.5 x 14 mm Socket Head Cap Screws (Class 12.9 BP Alloy Steel)

Finish:
Clear anodize, mirror-polish CNC gloss

Weight:
37 g (design is FEA optimized for maximum strength and minimum weight)

Line Break - Medium Red

MAIN ROTOR HOLDER ARMS V2, XT VERSION
FOR ALIGN TREX 550/600 ELECTRIC SERIES HELICOPTERS

Item Number: AT550/600-MRHA-XT-V2

Price: $29.95
Material: Aluminum 6061-T6
Models: all ALIGN TREX 550E (V1/V2), 600E/ESP, and 600E PRO. Also compatible with the Outrage Fusion 50 Electric and Velocity 50/N2 Nitro series.

Note: the Main Rotor Holder Arms V2, XT Version, are used in the KDE Direct TREX 550/600 Series XT Main Rotor Head System and provide a series of enhancements for optimal servo resolution, robust strength, and improved flight mechanics. Please review the full system for more details.

The Main Rotor Holder Arms V2, XT Version are also compatible with the stock ALIGN DFC Main Rotor Head Upgrade Set (#H60239A) as an upgraded replacement.

Includes:
– Two (2) TREX 550/600 Aluminum Main Rotor Holder Arms V2, XT Version

– Two (2) Custom M3 x 0.5 x 26.5 mm Socket Head Collar Cap Screws (Class 12.9 BP Alloy Steel)
– Four (4) M3 x 0.5 x 6 mm Socket Head Cap Screws (Class 12.9 BP Alloy Steel)
– Two (2) M3 x 0.5 Nylon-Insert Locknuts (Zinc-Plated Class 8 Alloy Steel)

Finish:
Clear anodize, mirror-polish CNC gloss

Weight:
7 g ea. (design is FEA optimized for maximum strength and minimum weight)

Line Break - Medium Red

MAIN ROTOR GRIP CONTROL LINKS, XT VERSION
FOR ALIGN TREX 550/600 SERIES HELICOPTERS

Item Number: AT550/600-MRGCL-XT

Price: $36.95
Material: Aluminum 6061-T6
Models: all ALIGN TREX 550E (V1/V2), 600E/ESP, and 600E PRO. Also compatible with the Outrage Fusion 50 Electric and Velocity 50/N2 Nitro series.

Need Replacement or Extra Heavy-Duty Ball Links? CLICK HERE (AT550/600-XTSRK)

Note: the Main Rotor Grip Control Links, XT Version, are used in the KDE Direct TREX 550/600 Series XT Main Rotor Head System and provide an FEA-optimized design for unprecedented strength and light-weight characteristics for accurate pitch control. Please review the full system for more details.

The Main Rotor Grip Control Links, XT Version are also compatible with the stock ALIGN DFC Main Rotor Head Upgrade Set (#H60239A) as an upgraded replacement.

Includes:
– Two (2) TREX 550/600 Series Aluminum Main Rotor Grip Control Links, XT Version

– Four (4) Radial Ball Bearings 3 x 7 x 3 mm
– Two (2) Bearing Collars 3 x 4.75 x 5 mm (Stainless Steel 304)
– Two (2) KDE Direct 550/600 Series Ball Links, Heavy-Duty 4.95mm
– Two (2) M3 x 0.5 x 20 mm Socket Head Set Screws (Class 12.9 BP Alloy Steel)
– Two (2) M3 x 0.5 Nylon-Insert Locknuts (Zinc-Plated Class 8 Alloy Steel)

Finish:
Clear anodize, mirror-polish CNC gloss

Weight:
4 g ea. (design is FEA optimized for maximum strength and minimum weight)

Line Break - Medium Red

Also, the updated KDE Direct V4.0 website has been released! Much easier navigation to your favorite upgrades and tons of room for future expansion. Have a look around.

Source: KDE Direct

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