SKU: 46760985967

Flycolor Raptor Slim 40A 2-4s BLHeli_S ESC

Sale price$9.11 Regular price$10.12
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Description

Flycolor Raptor Slim 40A 2-4s BLHeli_S ESCIn the adrenaline pumping world of drone racing, every gram and millimeter counts. That's why the Raptor Slim, an ultra narrow single Electronic Speed Controller (ESC), is turning heads and propellers alike in the drone community. Weighing in at a featherlight 9g and sporting a slender 10mm width, this ESC is the dream come true for racing drones with slim arm designs. Let's dive into the nitty gritty of what makes the Raptor Slim a must have for any

In the adrenaline-pumping world of drone racing, every gram and millimeter counts. That's why the Raptor Slim, an ultra-narrow single Electronic Speed Controller (ESC), is turning heads and propellers alike in the drone community. Weighing in at a featherlight 9g and sporting a slender 10mm width, this ESC is the dream come true for racing drones with slim arm designs. Let's dive into the nitty-gritty of what makes the Raptor Slim a must-have for any serious drone racer.

Features That Make Your Drone Zoom

Powerhouse Performance in a Slim Package

The Raptor Slim isn't just about its sleek dimensions. It's packed with features that ensure your drone flies like a champion:

  • EFM8BB21F16G MCU: At the heart of the Raptor Slim lies the EFM8BB21F16G microcontroller unit (MCU), based on the pipelined 8-bit C8051 core, buzzing at a maximum frequency of 50MHz. This little powerhouse ensures that your drone responds swiftly and efficiently, making those tight turns and high-speed maneuvers with ease.
  • Silky Smooth Startups: Thanks to its dedicated high-frequency driver, your drone gets a smoother start, eliminating jitters and providing a seamless takeoff experience. Plus, with a max speed of 500k eRPM, your drone will be zipping through the course with the grace of a gazelle on a caffeine buzz.
  • BLHeli_S Firmware: Designed specifically for the high demands of multirotors, the BLHeli_S firmware brings to the table hardware-generated motor PWM. This means smoother throttle response and quieter operation, letting you sneak up on your competition like a ninja in the night.
  • Damped Light & Regenerative Braking: The Raptor Slim isn't just fast; it's smart. With damped light technology, it offers regenerative braking, providing rapid motor retardation and active freewheeling. This feature is like having ABS for your drone, ensuring you maintain control when decelerating from breakneck speeds.
  • Signal Support & Detection: Whether you're a fan of traditional PWM, Oneshot, or Multishot, the Raptor Slim has got you covered. It automatically detects the input signal upon power-up, making setup a breeze. Plus, with support for Dshot150, Dshot300, and Dshot600, you get a robust digital signal with excellent anti-interference capabilities.
  • Enhanced Throttle Cable: The throttle signal cable comes with a silicone twisted-pair design, enhancing its durability and reducing crosstalk. This means more stable flights and a reduced chance of your drone throwing a tantrum mid-air.

Specifications:

  • Power Input: 2-4S Lipo
  • Continuous Current: 40A
  • Instantaneous Current: 50A
  • BEC: Nope, none here.
  • MCU: EFM8BB21F16G
  • Operating Frequency: Up to a whopping 50MHz
  • Firmware: BLHeli_S C-H-40
  • Dimensions: 35x10x7mm - Yes, it's that slim!
  • Weight: 9.1g - Lighter than a packet of crisps!

Includes

  • 1x Raptor Slim 40A ESC
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 46760985967

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Charlie J
Alexandria, US
★★★★★ 4
Good quality
Size: 10 sqft
I wish it was a little better but it definitely works great and look good for how cheap it is
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Reviewed in the United States on January 23, 2026
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R. Selberg
Charlottesville, US
★★★★★ 5
Works well
Size: 10 sqft
Worked great at a budget price. I used it to damp a fiberglass loudspeaker horn. Easy to work with too.
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Reviewed in the United States on May 8, 2026
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Devan
Lexington, US
★★★★★ 5
Good material but bites back
Size: 20 sqft
Very good product for my rear trunk and backseat on my mustang. I would recommend some type of gloves due to the foil itself when placing down will cut up your hands and fingers. Overall good product for its price.
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Reviewed in the United States on May 23, 2026
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Harold Rondon
Alexandria, US
★★★★★ 5
amazing product
Model: 36 Sqft
actually surprised how great the product is and way better priced then other companies. its sticky and also has thickness enough to cover metal parts on cars. i would recommend 100% just ordered another 18ft for the rear deck and to have some extra! does not smell. easy to install and helps stop vibration.
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Reviewed in the United States on March 10, 2026
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Amazon Customer
Louisville, US
★★★★★ 5
No more scrolling. Best price, abundant, does its job.
Model: 36 Sqft, Model: 36 Sqft
I have it under the closed cell foam. It’s great. Just as great as Killmat and all the other butyl rubber products. Let me ask you to do something: look at the people who rated it 1 and 2 stars. No reviews. No pictures. Why? They don’t want to see the most budget friendly product getting sold. That’s some weak business. Rest assured you’ll be happy with this. Why did I buy both types? Butyl rubber helps the car not be a tin can. It keeps the outside road vibrations out. Closed cell phone keeps your music in. They work best together., Kumbaya, we have unity! We can get along, even in this age in time. The closed cell foam is cheap. You’ll get it to replace the nasty cloth under your carpet. Do the knock test. It won’t help. You need this too. And truth be told, I prefer that it has no name on it. I’m not paying money so you can brand yourself on my car. Ps: these products go on and don’t come off. Don’t mess up. It’s the same for the competitors and the closed cell foam. One shot. Do it right the first time. I’m writing this review after I used up my first box and am getting more. Happy returning customer.
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Reviewed in the United States on May 17, 2026

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