Almost every brushless DC (BLDC) motor you can buy is a generator hiding in plain sight. Spin the shaft, and it produces AC voltage on its three phase wires — no modification, no special hardware. This is why “can I use a brushless motor as a generator?” has become one…
How to Spec a Brushless Motor for Heavy-Lift Multirotors: Thrust Budget, Voltage, and Thermal Margin
Multirotors are growing up. This month alone, the trade press has buzzed with 800 kg-class airframes, 100 kg payloads, hydrogen-electric hybrids, and high-voltage direct-drive propulsion systems moving from lab bench to real deployment. Logistics, agriculture, inspection, and emergency response are all pushing rotorcraft past the point where “buy the biggest…
You’ve flown your drone hard all summer. Same batteries, same props, same pilot. But something changed — the punch isn’t there anymore. Flights feel soft off the line, the quad sags under hard throttle, and it lands hotter than it used to. You swap a fresh pack and the problem…
On August 4, 2026, DJI’s EV50 made history — the first eVTOL aircraft to reach 8,861 meters on Mount Everest. The engineering headlines focused on wings-as-cooling-ducts and inrunner motor selection. But for anyone who actually builds or flies drones at altitude, the real question is simpler: what happens to your…
How to Choose Motor KV by Battery Voltage: 6S vs 8S vs 12S for FPV and Heavy-Lift Drones KV (RPM per volt) must match your battery voltage — higher voltage needs lower KV. A 6S (22.2V) build pairs with 900–2550 KV motors; 8S (29.6V) drops to 350–900 KV; and 12S…
1. What Does KV Rating Mean, and Which KV Should I Choose? KV stands for RPM per volt — the theoretical speed a motor spins when 1V is applied with zero load. A higher KV means more RPM at the same voltage, but lower torque. A lower KV means more…
XTO-3115 vs T-Motor V3115: Two Legitimate 10-Inch FPV Powerplants The X-TEAM XTO-3115 (900KV/1100KV) and the T-Motor V3115 are both 3115-stator brushless motors built for 9–11 inch long-range and cinelifter FPV drones on 6S LiPo. The XTO-3115 delivers 1943W peak power and up to 4.8kg of thrust on a 10-inch tri-blade…
Introduction If you’re building or upgrading a micro FPV drone in the 2 to 2.5-inch class, you’ve almost certainly encountered the 1106 brushless motor. It’s one of the most popular stator sizes for ultralight builds under 100 grams — and for good reason. The 1106 hits a sweet spot between…
Introduction The electric motor landscape is undergoing a quiet revolution. While traditional brushed DC motors have served industry for over a century, the emergence of coreless brushless DC motors (coreless BLDC) represents a paradigm shift in how engineers approach motion control. By eliminating the iron core from the rotor—a design…
Choosing between the XTO-3115 and XTO-2807 comes down to one question: what do you need your drone to carry? The XTO-2807 is a lightweight long-range specialist. The XTO-3115 is a heavy-lift workhorse. Both are excellent motors — but for completely different missions. Quick Comparison Spec XTO-3115 XTO-2807 Weight 130g (1100KV)…