Overview
VCI SPARK 1505 is a brushless motor for FPV multirotor drones, offered in 2350KV, 2900KV, 3750KV, and 4300KV options. It uses a 1505 stator (Dia. 15 mm x L5 mm) in a compact 19 mm-class motor size, suitable for lightweight DIY drone builds where motor selection and prop matching are critical.
Key Features
- KV options: 2350KV / 2900KV / 3750KV / 4300KV
- 12S14P configuration with N52SH arc magnets
- Compact motor dimensions: Dia. 19 mm x L17.4 mm
- 1.5 mm shaft diameter, 3 mm shaft length
- 24AWG silicone wire, 100 mm length
- Mounting: 4x M2 equally spaced, mounting circle Dia. 12 mm
Specifications
| Series / Model | VCI SPARK 1505 |
| KV options | 2350KV / 2900KV / 3750KV / 4300KV |
| Configuration | 12S14P |
| Magnets | N52SH arc |
| Stator size | Dia. 15 mm x L5 mm |
| Motor dimensions | Dia. 19 mm x L17.4 mm |
| Shaft diameter | Dia. 1.5 mm |
| Shaft length | 3 mm |
| Wire | 24AWG silicone wire, 100 mm |
| Mounting | 4x M2 equally spaced; mounting circle Dia. 12 mm |
Electrical (by KV option)
| KV | Rated voltage | Internal resistance | Idle current (10V) | Peak current | Max instantaneous power | Weight (incl. cable) |
|---|---|---|---|---|---|---|
| 2350KV | 6S (24V) | 320 mOhm | 0.3A | 9.98A | 239.52W | 12 g |
| 2900KV | 6S (24V) | 205 mOhm | 0.5A | 13.36A | 320.64W | 12.2 g |
| 3750KV | 4S (16V) | 150 mOhm | 0.7A | 15.73A | 251.68W | 12.1 g |
| 4300KV | 4S (16V) | 120 mOhm | 0.7A | 18.2A | 291.2W | 12.2 g |
Test Data (Static Reference)
- SPARK 1505 2350KV @ 24V with GF D63-5: max thrust 423 g, 9.98A, 239.52W, 1.77 g/W
- SPARK 1505 2900KV @ 24V with GF 3016-3: max thrust 548 g, 12.89A, 309.36W, 1.77 g/W
- SPARK 1505 3750KV @ 16V with GF D63-5: max thrust 420 g, 15.73A, 251.68W, 1.67 g/W
- SPARK 1505 4300KV @ 16V with GF 3016-3: max thrust 491 g, 16.78A, 268.48W, 1.83 g/W
If help is needed choosing the right KV option for a specific frame/prop/battery setup, contact support at https://rcdrone.top/ or email [email protected].
Details

Compact 19 mm-class motor layout with a Ø12 mm, 4×M2 mounting circle for lightweight FPV builds.

Reference specs and bench test results for the 2350KV option to help match props and battery voltage.

2900KV performance table for quick comparison of thrust and efficiency across throttle positions.

3750KV data targets 4S setups, with measured thrust and efficiency over throttle for prop selection.

4300KV test table provides a baseline for high-KV 4S tuning with common micro prop options.

Overlay chart makes it easier to compare thrust and efficiency trends between propellers at different throttle levels.
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