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Dr. Mad Thrust 70mm 11-Blade Alloy EDF 3900kv Motor - 1300watt (4S) Counter rotating

Dr. Mad Thrust 70mm 11-Blade Alloy EDF 3900kv Motor - 1300watt (4S) Counter rotating

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$65.09

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1 year warranty

SKU:

9107000280-0

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YEP 80A (2~6S) SBEC Brushless Speed Controller

SKU: 9351000017

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YEP 80A (2~6S) SBEC Brushless Speed Controller

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Product Description

Introducing our Dr. Mad Thrust high performance EDF series. The Dr. has been hard at work to bring you MAD power EDF systems with excellent quality and high performance at a price that will leave some cash in your pocket.

The Dr. Mad Thrust EDF series are pre-assembled and dynamically balanced making them easy to fit, with no unit assembly required. As well as high power, these fans have excellent cooling and run so smoothly, the sound is amazing. There is also no housing distortion unlike plastic fans. This high quality, powerful fan is a great way to upgrade your 68mm EDF jet to a speeding missile in around an hour!

Dr. Mad Thrust EDF series - just the right prescription for your model!

Features:
• Pre-assembled
• Factory dynamically balanced
• High power with superior cooling
• High quality construction
• Fully serviceable
• Fast to fit
• No housing distortion

Specs:
EDF Inner Diameter: 70mm
Outer Diameter: 72mm
Construction: Alloy
Weight: 190g
Max RPM: 62000
Motor Type: B2839 3900kv Counter rotating
Max Power: 1300W
Continuous Power: 1200W
Max Voltage: 14.8V (4S)
Max Amps: 79A
Max Thrust: 1.6kg

Product Specifications

Kv(rpm/v) 3900.00
Max Current (Motor) (A) 76.00
Resistance (mh) 0.03
Max Voltage (V) 22.00
Power (W) 1300.00
Shaft A(mm) 4.00
Length B (mm) 14.00
Can Diameter C(mm) 29.00
Can Length D(mm) 60.00
Total Length E(mm) 33.00

Dimension Diagram Guide

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Awesome | Verified Buyer

Overall
Quality
Value

Awesome

Jun 04, 2021

Awesome

Phil | Verified Buyer

Overall
Quality
Value

Fan was as described

Mar 21, 2021

Excellent Service great product will shop there again they are the top parts and materials supplier to the hobbyists

Jaime | Verified Buyer

Overall
Quality
Value

Not like the old ones

Jan 03, 2021

I have two other mad thrust EDF that i purchased 4 years ago. They came with a very quiet in-runner and deliver a very realistic turbine sound; very little noise coming from the motor. The also included a motor housing that may also helped with quieting the motor sound. This version comes with an outrunner that howls like a banshee and also has the wires interfering with the air flow. Very sad to see that in order to save a few pennies they killed a wonderful product. "The thrill is gone". :(

Adalbert | Verified Buyer

Overall
Quality
Value

Impeller

May 18, 2020

Antrieb nicht zu empfehlen, ist nach 22 sek. abgeraucht.
Wurde mit 4S 3800 mAh und 80er Regler betrieben.
Der Antrieb war schlecht gewuchtet.
Allerdings war die Rauchfahne im Flug beeidruckend.

Terry | Verified Buyer

Overall
Quality
Value

Wanted to purchase a good quality fan unit for a scale Saab Viggen that I had just completed.

Oct 21, 2019

I Had 3 flights I was getting half my normal flight time with no extra speed or performance.On the fourth flight the motor quit.On examination the coils had burned out.I am now in the process of dismantling a model that took a long time to build to get this faulty unit out.

Josef | Verified Buyer

Overall
Quality
Value

Falsch konfiguriert

Oct 06, 2019

Bei 4s3300 nimmt der Motor 120A auf. Außerdem ist er schlecht gewuchtet. Vibriert sehr stark. Keine Empfehlung!

Kein1954 | Verified Buyer

Overall
Quality
Value

Schrott⁸

Sep 29, 2019

Dieses Teil ist das Geld nicht Wert, nach einem Probelauf ist der Motor durchgebrannt

SoS-Software | Verified Buyer

Overall
Quality
Value

bad luck

Sep 20, 2019

Had very bad luck : mine died when setting up the ESC on 4 cells, did not say it was'not my fault but sad it burns so fast.

Angel | Verified Buyer

Overall
Quality
Value

too much energy

Mar 04, 2017

This consumes too much energy from the 4 cells. Yo and used lipo 4 turnigy cells of 65c 1400mha. Only this consumes it in 1 minute with half throtle ..
Why is this happening? I then use a lipo 4 cells of 16000mha. This yielded approx. 8 min. Why does it consume too much energy?

relistic | Verified Buyer

Overall
Quality
Value

Efficiency is so so.

Nov 26, 2016

Is there a typo.
Two 570W EDF would produce 3.97Kg of thrust! That is 1.975KG per 570W! 3.4g/W!
For this 12 blades 3900kv EDF 4 cells, 570W at around 35A might produce 1Kg at the best which is 1.75gram per watt. I brought three of this edf, each would give me 270g at 100W which is the best already. At 700W it give me only 960g, all measure with thrust meter.