how many volts does this run on at top speed?

Thank you very much for your feedback and reminders. the voltage should reach 12.6V and the current should reach 38A if it run on at top speed.

I'm having trouble programming the skywalker 40a esc that comes with this edf kit using beeps. do you recommend a particular led programming card?

Thank you for your question. Almost no programming cards are seen on the market, This can only be done with a remote control. We don't do control programs, so there is no better suggestion for this problem. I am really sorry that I have not helped you with the question.

the picture shows and the heaed states 4300kv 4s but the choice are 3900kv 4s or 4900kv 3s? so is it 4300 or 3900 for the 4s?

Thank you very much for your feedback and reminders. This is the size of：Powerfun 50mm EDF with 4300KV 4S Motor +ESC40A(2~4S). This is a very favorable EDF package and high-qulity products. I am very sorry for the inconvenience caused by our mistakes. I wish you a happy life.

what connector does it have when i straight of buy it, an xt60?, xt30?

Thank you for your trust and support , this is 40A(2~4S)ESC，The default plug is T plug. If you need XT60 plug, please send us an email to let us know and we will order it for you. Thank you!

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Description

🛩️ Elevate your RC jet game with power and precision that commands the skies!

UNMATCHED THRUST POWER - Delivers a robust 950g thrust for agile, high-speed maneuvers.
LIGHTWEIGHT YET DURABLE - Total weight of just 77g combining strength and performance for your RC jet.
PLUG PLAY CONVENIENCE - Pre-soldered banana plug ensures hassle-free, reliable electrical connections.
OPTIMIZED FOR 4 S BATTERIES - Designed to maximize efficiency with 4S 1800mAh 25C battery and 40A ESC.
PRECISION BLADE ENGINEERING - 11 blades crafted from durable PA66+GF for optimal airflow and quiet operation.

The Powerfun EDF 50mm 11 Blades Ducted Fan pairs a high-performance 4300KV brushless motor with precision-engineered blades, delivering up to 670W and 950g thrust. Balanced for smooth operation and built from durable PA66+GF material, this lightweight 77g unit is optimized for 4S 1800mAh batteries, making it the ultimate upgrade for serious RC jet enthusiasts seeking power, reliability, and realistic flight dynamics.

Specifications

ASIN	B0756DZJZT
Best Sellers Rank	#161,162 in Toys ( See Top 100 in Toys ) #211 in Remote- & App-Controlled Airplanes
Brand Name	Powerfun
Customer Reviews	4.4 4.4 out of 5 stars (183)
Horsepower	670 Watts
Item Dimensions W x H	6.3W x 7.6H centimeters
Item Weight	0.18 Pounds
Manufacturer	Powerfun
Material Type	PP
Model	3s /4900kv
Model Name	50mm 11 blade
UPC	661273154731
Voltage	16.8 Volts

Reviews

E**S

EXCELLENT QUALITY EDF! EASY TO MOUNT AND HOOK UP! I AM USING IT ON MY FOAM JET , WINGSPAN 40" AND IT HAS PLENTY OF POWER TO DO ANY MANEUVER THAT I WANT! NOT NOISY LIKE A LESSER BLADE EDF , BUT SOUND IS MORE REALISTIC, WOULD RECOMMEND THIS EDF FOR YOUR JET !

31.12.2019

J**B

Very good motor and esc- still waiting on my receiver to test it out but looks very good. Also got a very nice hand written note as well. Very happy with the product and seller. Would recommend

15.11.2018

K**N

初めてのブラシレス。パワフルなのにビックリです。コントロールもたのしい。

16.11.2023

D**Y

Used 2 of these setups in a 3d printed C-17. And it had plenty of power with a 4s 2600 battery

8.02.2025

H**Y

Good quality! Especially the ESC.

16.08.2020

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The MOLLE sheath is of exceptional quality. Very happy with my purchase.