UM 3115 Motor
The UM3115 is an endurance-focused motor offering high efficiency, thermal stability, and predictable performance under sustained load. It delivers consistent torque and thermal margin for extended flight profiles and payload-carrying platforms.
Available with direct-solder leads (three 20 cm 16 AWG silicone wires) or solder-free with a factory-terminated MR30 connector at 254 mm. Select KV and connector above.
Key Features
- Optimized for endurance and efficiency
- 12N14P stator and rotor configuration
- High thermal tolerance for sustained operation
- Precision EZO bearings for smooth, reliable rotation
- Built in the USA and NDAA compliant
- Designed for enterprise and professional UAV platforms
Specifications
| Stator / poles | 12N14P |
| Bearings | EZO 695ZZA |
| Weight | 113.1 g (119.2 g with solder leads) |
| Overall length | 49.4 mm |
| Body length | 31.4 mm |
| Diameter | 39.9 mm |
| Shaft diameter | 5 mm |
| Mounting | 4 × M3 on Ø19 mm PCD |
| Max rotor temperature | 100 °C |
| Lead options | Direct solder (3 × 20 cm 16 AWG) or solder-free MR30 connector (254 mm) |
KV rating, voltage range, maximum current, winding configuration, and motor parameters (no-load current, winding resistance, line inductance) vary by KV — see the data sheet for the selected KV.
Sold individually. For volume and enterprise pricing, contact enterprise@unusualmachines.com.
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Product Specifications
Product Specifications
What's Included
What's Included
Shipping & Returns
Shipping & Returns
Shipping: Orders are processed within 1–2 business days. Standard delivery takes 3–7 business days depending on your location.
Returns: We are happy to accept returns at Rotor Riot. As long as your item qualifies based on the guidelines below, you can print out a return form, fill out the requested information, and send the items back to us with the return form included. Once we have the package we will verify that the below guidelines are met, and then issue your refund.
Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.
Discover more in our FAQ
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How long does it take to process an order?
How long does it take to process an order?
Orders are typically processed within 1–2 business days. You will receive a confirmation email with tracking details once your order has been shipped. Please note that processing times may be slightly longer during high-demand periods or sales events.
Do you ship internationally?
Do you ship internationally?
Yes, we offer international shipping to most countries. Shipping rates and delivery times vary depending on the destination. Any applicable customs duties or taxes will be the responsibility of the recipient.
What is your return policy?
What is your return policy?
We are happy to accept returns at Rotor Riot. As long as your item qualifies based on the guidelines below, you can print out a return form, fill out the requested information, and send the items back to us with the return form included. Once we have the package we will verify that the below guidelines are met, and then issue your refund. If you received an incorrect item, or if your item is defective it is not a return, and you will need to contact customer support to open a ticket. If you have any further questions about how this process is handled please contact customer support for details.
- An item is eligible for return if it is new and unopened. This means that all of the original manufacturer’s packaging is still intact.
- Returns need to be shipped back to us within 15 days of receiving the items for a full refund. After this time you will only be eligible for store credit. (All DJI Avata Bundles must be returned within 7 days)
- Refunds are only issued after the item has been received and processed by our staff. This can take up to 3 business days after we receive the package.
- Once a refund is approved you will be notified by email. Please allow up to three days for this to be processed by your banking institution.
- Built-to-order drones that are returned are subject to a 25% restocking fee. If an order is returned to us due to customs or import fees not being paid the items are subject to a 25% restocking fee.
- Returns will always go back into the account that was used at checkout.

