Item Number: KDE450XF-3500

Price: $108.95
Material: Neodymium N45SH, 3500Kv
Models: 450-class helicopters (compatible with M3 x 19mm and M2.5 x 16mm mounting profiles) and
ф3.5mm exit shaft.  For the ALIGN 450L Dominator series, check out the Installation Notes online in the
HeliFreak KDE Direct Upgrades and Accessories Forum:

Design Geometry Dimensions Specification Sheet (PDF)

Motors include 200°C, 16AWG silicone-wire leads and ф4.0mm 24k Bullet Connectors (pre-soldered to
the motor leads and ESC bullets in the box).

Note: the new KDE Direct 450XF-3500 High-Performance Brushless Motor is an extremely efficient and powerful motor for
any 450-class Electronic helicopter, and was designed as a powerhouse for the ALIGN TREX 450 and GAUI X3 series
helicopters.  In collaboration with Castle Creations, the motor is custom designed for KDE Direct and used the latest
Computer-Aided Magnetic Field Analysis software to design the most efficient and optimized design for high-level, 3D-
competition flight.  The motor is designed to handle extreme-power setups and has been optimized for governor-control
algorithms of the Castle Creations ESC product line; making this motor the most capable offering in the RC helicopter

* Equivalent Stator Winding: TBD

Clear anodize, mirror-polish CNC gloss endbells
Black electro-plate, CNC gloss central core (flux ring)

Product designed and quality-inspected in the United States and manufactured in China.

Receive FREE USPS Priority Domestic or USPS First Class International Shipping with total
purchase of $149USD or over!  
Need it faster?  Select an alternate method after Checkout or e-mail us
for an alternate carrier and rates at

To Purchase: Click the Add to Cart link located above (it will direct you automatically to PayPal).

Payment Methods:  We currently accept all payments through PayPal, Money Orders, or Personal
Check.  Please note
credit cards are accepted through PayPal by clicking the Add to Cart link located
on this page and paying after Checkout.  If you would prefer sending Money Order* or Personal Check*,
please contact our sales team at the e-mail above for details.

*Your check or money order will need to clear before products are shipped.
XF Brushless HP Motor Series
Gearing Recommendations

Performance Setups for
more detailed information.
3,500 RPM/V
Maximum Current
108+ A (2 sec)
Maximum Power
1,200+ W (2 sec)
Continuous Current
66+ A
Continuous Power
725+ W
Maximum Efficiency
Voltage Range
11.1 V (3S) - 14.8 V (4S)
Io (@10V)
2.8 A
Rm (Wind Resistance)
0.009 Ω
Magnetic Poles
8 (12S8P)
Quad, 604ZZ/MR74ZZ
Mount Pattern
M3 x ф19 mm, M2.5 x ф16 mm
Stator Class
2618, 2T, D
Stator Windings*
Shaft Diameter
ф3.5 mm (4 mm Internal)
Shaft Length
18.5 mm
Motor Dimension
ф33 mm x 36 mm
Motor Weight
100 g (115 g with Wire Leads)
Motor Leads
16 AWG, 200°C
Cooling System
High-Volume Centrifugal Fan
Motor Timing
5° - 15°
8 - 16 kHz
For more information on the XF
Brushless Motor series, a design
presentation (PDF) and YouTube
video have been provided.

In addition, full specifications are
listed in the tables below.