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Ships within 48 hours · Estimated delivery Aug 4 - Aug 9
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Description
DualSky Ultra 40A ESCDualskys' high end 40A 2 6S brushless speed controller. For Airplanes and Helicopters. Features: Super strong 5A UBEC Failsafe BEC switch Supports S. BUS Adjustable Governor Mode (Heli's) Fully programmable 32 bit ARM Processor Dimensions 63x34x15. 8mm Weight w o wire 52g Number of Cells 2 6s Lipo Continuous Current 40A Burst Current 60A Input Signal PWM SBUS BEC Adjustable 5 7. 4V @ 5A Receiver Filter Yes Fail Safe Yes Programming Method Throttle or
Dualskys' high-end 40A 2-6S brushless speed controller.
For Airplanes and Helicopters.
Features:
- Super strong 5A UBEC
- Failsafe BEC switch
- Supports S.BUS
- Adjustable Governor Mode (Heli's)
- Fully programmable
- 32-bit ARM Processor
| Dimensions | 63x34x15.8mm |
| Weight w/o wire | 52g |
| Number of Cells | 2-6s Lipo |
| Continuous Current | 40A |
| Burst Current | 60A |
| Input Signal | PWM / SBUS |
| BEC | Adjustable 5 - 7.4V @ 5A |
| Receiver Filter | Yes |
| Fail Safe | Yes |
| Programming Method | Throttle or Programming Card V3 |
| High Response System | Yes |
| Governor Mode | Yes |
| Brake | 5 step |
| Timing | Adjustable |
| Soft Start | 3 Steps |
| Acceleration | 5 Steps |
| Low Voltage Cutoff | Yes |
| Arming Sequence | Yes |
| Overheating Protection | Yes |
| Water and Dust Proof | Yes |
| Finned Heat Sink | Yes |
| Protective Housing | Yes |
| LED Indicator | Yes |
| Input Wires | 14AWG 150mm long |
| Output Wires | 16AWG 75mm long |
| Signal Wire | JR Style Connector 300mm long |
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- 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
4.4 ★★★★★
Based on 24 reviews
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Product Reviews
★★★★★ 5
Perfect OEM fit
Fixed my impeller on my Mercury Salt Water 115. Best done as a two man job. Lots of videos available online .
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Reviewed in the United States on April 14, 2026
★★★★★ 4
Fits 2001 Bayliner
This product was definitely different than the original I have a 2001 Bayliner with a 3.0 MerCruiser and an alpha one second GEN drive The kit worked but the bottom gasket had a weird cut different than the original I added a gasket maker just in case (Yamaha Lube) Brand! All in all kit was fine, One thing to note is the directions that come with the kit at least for my version we’re not for the same alpha one second GEN 4 stroke kit that I got they were for a two-stroke in the pictures didn’t look the same as the parts that I had got which is fine but it’s miss leading when you send a 4 stroke kit but 2 stroke 90hp to 200hp alpha one directions! If it craps out this review will change
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Reviewed in the United States on June 30, 2020
★★★★★ 5
Super great product. Has the power and functionality to get you repairing fast!
Super great product. Has the power and functionality to get you repairing fast! Fully recommend this and it has worked great since I've owned it. Still going strong in the durability and design looks like it will keep it going strong for many years. Highly highly recommend buying this. Will work in Kuwait, Iraq, UAE, and Saudi. Good for Camps around the CENTCOM area!
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Reviewed in the United States on October 6, 2025
★★★★★ 5
Solid Product
worked well, easy to install.
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Reviewed in the United States on November 3, 2025
★★★★★ 5
Excellent wire!
Size: 2 Colors each 10FT, Style: 10AWG
This wire is very soft and flexible. Many strands and tinned nicely. A perfect upgrade for my power wheel wires that keep melting. These have been running for months in exterior environment without any issues.
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Reviewed in the United States on October 31, 2025