How to match an electric motor to an RC aircraft
A practical guide to motor KV, voltage, current, thrust, aircraft weight and flight style so the power system matches the model.
A40-10L V4 kv500 is a professional A40 item from Hacker Motor GmbH, prepared for the RC-MODEL catalog with customer-facing information, official product imagery, structured specifications and no storefront supplier pricing.
This product is relevant for RC builders and pilots looking for a40, replacement parts, upgrades or setup components. Use it when planning a new model build, maintaining an existing aircraft, boat or radio system, or comparing compatible electronic and power-system parts.
Confirm the physical dimensions, weight, voltage, current rating, connector style, shaft size, cell count, propeller range and installation space against your model. RC-MODEL can help verify compatibility when you provide the model name and part number.
A40-10L V4 kv500/h3> Product description and features Our range of A40 outrunner motors includes both an 8-pole and a 14-pole version. The A40 motors have been specially developed for use in medium-sized motor and glider models up to 4 kg, such as motor planes, dogfighters, fun and aerobatic planes. In combination with our proven 6.7:1 planetary gearbox, there are also three versions for larger electric gliders up to approx. 10 kg take-off weight. This weight-optimised high-end motor with a weig
Reference SKU/model: 33726614. Mention this reference when contacting RC-MODEL for availability or fitment support.
These guides explain the setup, safety checks and accessory choices that usually matter for this product type.
A practical guide to motor KV, voltage, current, thrust, aircraft weight and flight style so the power system matches the model.
Diameter, pitch, motor load, current measurement and how propeller choice changes thrust, speed, efficiency and heat.
ESC selection by maximum current, voltage, BEC, safety margin, cooling, connector choice and the real load from motor and propeller.
A step-by-step safety guide for measuring amps, watts and voltage sag so customers avoid overheating motors, ESCs and LiPo batteries.
A safety and performance guide to propeller balance, spinner fit, bent shafts, motor mounts, firewall checks and protecting electronics from vibration.
| Technical Specifications | |
| Manufacturer | Hacker Motor GmbH |
| Product Type | A40 |
| SKU | 33726614 |
| EAN | 4250320249382 |
| Availability | In stock |
| Weight [g] | 246 |
| Poles | 14 |
| Idle current (I0) at 8.4V [A] | 1,24 |
| Internal resistance (Ri) [Ohm] | 0,030 |
| Recommended timing [°] | 20- 25 |
| Switching Frequency [kHz] | 8 |
| Controller recommendation [A] (depending on setup) | 55 - 70 |
| Length [mm]/[in] | 52 |
| Outer diameter [mm]/[in] | 41,7 |
| Shaft diameter [mm]/[in] | 5 |
| Prop Adapter | Ja |
| Gold plug mm (recommended) | 4 |
| Backmount mountable | Ja |
| Front mountable | Ja |
| max. power range [W] (max.15 sec.) | 1100 |
| Mounting cross | Ja |
| Idle speed per volt (kv) | 500 |
Tags: Hacker Motor GmbH, A40-10L V4 kv500, Engines & Power, Electric Motors, Hacker Outrunner, Hacker A40, A40
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