FMS 1811-Kv3900 Motor – Easy Trainer/Fox

The FMS 1811-Kv3900 Motor (part number FMSPRKVX3900-1) is a genuine FMS spare, ideal for maintaining performance on select 800mm-class FMS aircraft. It provides a straightforward like-for-like swap when servicing a well-used model or repairing damage, keeping your airframe running with manufacturer-supplied hardware.

Based on the product naming, the following models are noted as suggested compatibility. This helps identify where the FMS 1811-Kv3900 designation is typically used.

Suggested Compatibility

• FMS 800mm Easy Trainer
• FMS 800mm Fox

At a Glance

• Genuine FMS motor
• 1811-Kv3900 designation
• Part number: FMSPRKVX3900-1