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AXi 4120/18

412018
  • AXi 4120/18
  • AXi 4120/18 image #2
  • AXi 4120/18 image #3
  • AXi 4120 with optional radial mount fitted
Click to enlarge image

The AXi 4120/18 Gold Line brushless motor is suitable for large sailplanes weighing up to 4500g (158.7 oz) and sports aerobatic models up to 3500g (123.5 oz).

This particular motor is suitable for vintage, slow flying and trainer type model aircraft up to 3800g (134 oz) but would also suit a senior Telemaster on a 5s LiPo battery. The advantage of being an outrunner provides the ability to spin a large propeller without a gearbox, making this motor particularly suitable for flying scale models.

These brushless motors with neodymium magnets and a rotating case are manufactured using the latest technology from the finest quality materials. The hardened steel shaft supported by three ball bearings, and overall robust yet lightweight construction, ensure a long service life.

AXi motors are designed such that the propeller is mounted on the shaft, but a radial mount set is available as an option, to allow the motor to be mounted directly onto the firewall. This optional radial mount set includes: mounting flange, propeller adaptor, a securing collar and screws and is usually the preferred route for glow conversions.

Box Contents: -

  • AXi 4120/18 Brushless Motor
  • Specification sheet and manual
  • Transparent mounting template
  • "AXi Inside" decal

Not included with the AXi 4120/18: -

  • Prop adaptor (PH6 recommended) – not required if using radial mount set
  • Radial mount set (RMS41 recommended)
  • Connectors

Please retain the box and manual with your motor in the unlikely event of a warranty claim.

All items are shipped from the UK. To see shipping/delivery charges, simply add items to your basket and see the shipping options beneath your items. You can pay with PayPal or Google Wallet – you do not need a PayPal account to pay with your credit/debit card.

Other AXi motors in this series: AXi 4120/14AXi 4120/20AXi 4120/20 Short-Shaft

Recommended setups for AXi 4120/18
Type Model Weight Cells Max. Current Jeti ESC Propeller
Trainer 3800g (134.0oz) 5s 55.0A/60s Jeti Advance 70 Pro Opto 14" x 9" propeller search
Aerobatic 3500g (123.5oz) 5s 55.0A/60s Jeti Spin Pro 80 14" x 8" propeller search
3D 2600g (91.7oz) 5s 55.0A/60s Jeti Advance 70 Pro Opto 15" x 8" propeller search
3D 2300g (81.1oz) 4s 55.0A/60s Jeti Advance 70 Pro Opto 17" x 8" propeller search
3D 2900g (102.3oz) 6s 55.0A/60s Jeti Spin Pro 80 14" x 7" propeller search
Sailplane 4300g (151.7oz) 4s 55.0A/60s Jeti Advance 70 Pro Opto 17" x 9" propeller search
Sailplane 4500g (158.7oz) 5s 55.0A/60s Jeti Advance 70 Pro Opto 15" x 9.50" propeller search

Do not exceed the recommended propeller sizes.

Technical Details for AXi 4120/18

No. of cells (LiPo)  5-7
RPM/V  515 Kv
Max. Efficiency  82%
No load current  1.5A
Maximum Load  55.0A
Internal Resistance  0.070Ω
Diameter  49.00mm (1.93")
Length  55.00mm (2.17")
Shaft Diameter  6.00mm (0.24")
Max. Efficiency Current  
Glow Equivalent  .46-60
Weight  320.0g (11.3oz.)

Reviews of AXi 4120/18

very versatile - By paul
5/5 stars
I am using the AXI 4120/18 to power a World Models 1/5th scale clipped wing piper cub.

My setup is:
- 4120/18
- 5s lipo
- JETI SPIN 66
- 14x7 APC Thin Electric

I could add an extra cell or go up slightly in prop diameter, but the level of power is just right on this setup. Not vertical, but enough power spare to help in those bad spots!

Write your own review of this item.

$137.75 exc. VAT
$165.29 inc. VAT
Based on base price of £108.50 inc. VAT

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