• VCI SPARK 1503 brushless motor side view with SPARK logo, 1503 2900KV label and shaft
  • Angled top view of VCI SPARK 1503 brushless motor showing orange spokes, copper windings and wire leads
  • Top-down close-up of SPARK 1503 motor bell showing orange frame cutouts and copper windings
  • Bottom view showing 3-hole motor mount pattern, bearing, stator windings and attached wires
  • Included hardware: SPARK 1503 motor with set of mounting screws laid out beside it
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VCI SPARK 1503 Brushless Motor for FPV Multirotors - 2900KV/3950KV/4600KV/5450KV Options

VCI SPARK 1503 Brushless Motor for FPV Multirotors - 2900KV/3950KV/4600KV/5450KV Options

VCI

$22.55 USD
$22.55 USD
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Overview

VCI SPARK 1503 is a compact brushless motor series for FPV multirotors and lightweight RC aerial builds, offered in multiple KV options (2900KV / 3950KV / 4600KV / 5450KV). All variants share a 1503 stator format and Ø19 × L15.4 mm motor dimensions for consistent fitment across builds.

Key Features

  • Multiple KV selections: 2900KV, 3950KV, 4600KV, 5450KV
  • 12S14P configuration
  • N52SH arc magnets
  • 24AWG silicone wire, 100 mm
  • M2 mounting holes (4x, equally spaced)

Specifications

Common Mechanical

Stator size Ø15*L3 mm
Motor dimensions Ø19*L15.4 mm
Shaft diameter Ø1.5 mm
Shaft length 3 mm
Mounting 4-M2 (equally spaced), bolt circle Ø12 mm
Magnets N52SH arc
Configuration 12S14P
Silicone wire 24AWG 100 mm

Electrical (by KV Option)

KV option Rated voltage Internal resistance Idle current (10V) Peak current Max instantaneous power Weight (incl. cable)
2900KV 4S (16V) 410mΩ 0.7A 8.52A 136.32W 9.2g
3950KV 4S (16V) 250mΩ 0.7A 11.53A 168.48W 9.2g
4600KV 3S (12V) 183mΩ 0.5A 10.75A 129W 9.1g
5450KV 3S (12V) 150mΩ 0.7A 14.06A 168.72W 9.3g

Test Data (Reference)

  • SPARK 1503 2900KV @ 16V with GF 3052-3: max thrust 240 g, max current 8.52 A, max power 136.32 W, temperature 68 C
  • SPARK 1503 3950KV @ 16V with GF 3028-3: max thrust 343 g, max current 10.53 A, max power 168.48 W, temperature 76 C
  • SPARK 1503 4600KV @ 12V with GF 3028-3: max thrust 299 g, max current 10.75 A, max power 129.00 W, temperature 57 C
  • SPARK 1503 5450KV @ 12V with GF 3016-3: max thrust 337 g, max current 14.06 A, max power 168.72 W, temperature 56 C

Support

For motor selection guidance (KV choice, voltage matching, and build fitment), contact [email protected] or visit https://rcdrone.top/.

Details

VCI SPARK 1503 brushless motor dimension drawing with Ø19×15.4 mm size, Ø12 bolt circle, 4×M2 mounts

Compact 1503 footprint keeps fitment consistent across builds, with a Ø12 mm bolt circle and 4×M2 mounting pattern.

SPARK 1503 2900KV and 3950KV specifications and test tables with thrust, current, efficiency and temperature charts

Reference test data for the 2900KV and 3950KV options helps match prop choice and battery voltage to your target thrust and current draw.

SPARK 1503 4600KV specification sheet and GF 3028-3 test results table with thrust and efficiency curves

The 4600KV variant includes a full spec summary and static test results for quick comparison against other KV options.

SPARK 1503 5450KV test table with GF 3016-3 prop, listing thrust (g), current (A), power (W) and temperature (°C)

5450KV performance data is provided with throttle-to-thrust and efficiency trends for lightweight FPV multirotor tuning.

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