Let's talk about EDF's Electric Ducted Fans!

Hi DemonDriver here & I wanted to talk to you about EDF Electric Ducted fans, types, sizes and EDF saftey, If you have any questions please ask.

[@blackops84321]

i never have been told about standing at an angle when testing, thank you for a great tip. i never thought about it before. thanks for sharing this video.

[@F3HDemonDriver1]

+blackops84321 EDF's do explode from time to time, Its rare but it does happen.

[@bbuildingmarch7060]

+F3HDemonDriver what do you mean. how does it explode and why?

[@DerkDerglass]

Great vid. The safety message at the end is a great point.

[@rckeith]

Good advice on the safety of EDF's chris, I've bench tested EDF's and never thought of standing at an angle. Will always do that now thanks. Keith

[@Surferjoee]

Excellent! You are a super pilot! I have seen very few R/C pilots fly and land as well as you did. Bravo!!! Very nice Aircraft and super engine!

[@LinkinPark2135]

That was a very well put and well educated video fantastic job! I am just getting into building RC planes from scratch. For my first project, I plan on making a scaled version of a Southwest 737-300 with winglets. Those 127MM fans look beast and for the low price am planning to use them since I plan to make the model large. Great video, it was exactley what I was looking for you answered alot of my questions

[@lawrencewilliams1477]

AMAZING STUFF TOP PRESENTATION ENJOYED THIS

[@F3HDemonDriver1]

Thanks I LOVE the SUD Caravelle! I will build a few later this year!

[@808FlyBy]

glad you brought the safety thing up. ive seen people powering up a damaged plane with a damaged prop.!! insane.

[@F3HDemonDriver1]

There is a set screw in the front of the fan blade unit unscrew that then take the blades off then you can get to the motor-fan firewall to unscrew its fairly strait forward.

[@ebasicrcbuilder]

hello dd excellent video, maybe you can do a part two to this video explaining how everything is connected especially if you have more than one engine, thanks again

[@F3HDemonDriver1]

@MissileMist Hi Missile, I bolt them into place, with stell bolts & screws, thankyou!

[@Justwantahover]

What if you set a hundred of those babies into a strengthened surfboard? A hover board that would carry your weight (and the batteries last about ten seconds). lol

[@puttockh]

ye lol, i have run the calculations and i think about 10kg of thrust would do it. which is 22lbs. this should give me an initial acceleration of about 1m/s/s which isnt bad. the question is cost...... i know it will be expensive and i was wondering how much these 125mm cost ? also how many cells do they run on ?

[@erkanen]

obrahim: USE EDF electric jet motors AND buy a Tesla Power Wall battery. In fact, Buy 5 batteries and used approx 170 EDF electric motors mounted in formation with necessary space in-between. 170 should give you 100 Kg of extra lift, i.e. rideable. //Erik S

[@JSprayaEntertainment]

How do i replace my bad blades/fan but keep my brushless motor ... How do they come apart ???

[@All2Meme]

On the subject of testing EDFs, would it be a good idea to build a miniature version of the test cells the large engine companies use for engine testing on the bench? That way, if the fan were to disintegrate it would hit the test cell wall or the observation window(s) instead of the tester.

[@justinwood2]

8:30 "This is a Gas EDF" Next up tethered RC cars! EDF means "Electric Ducted Fan"

[@yangexue6596]

justin wood so... GDF?

[@bvzby72]

it is like a skate board, but with off road tyres. any idea on the power required? also, are Leopard Ducted fans any good? Thanks again.

[@F3HDemonDriver1]

Its really all about the kilavolts of the motor. In your 70mm fan but I would say a 11 to 14 volt lipo.

[@bvzby72]

great vid! I was wandering what you would recomend if i was gonna put a ducted fan on a dirt board? Thanks!

[@devanshnigam4262]

HET Typhoon is a motor, and the product described in hobby king and webmotech are ducted fans with the motor inbuilt i guess so which one is better for me to purchase

[@F3HDemonDriver1]

That would be a VERY expensive way to move a bike! lol The most thrust I've ever heard of is 16lbs out of a 125mm edf, its possible but you would need atleast 2 of them Sir.

[@KingLeonidas05]

hi there i been looking on some ducted fan for a bit.....i been looking on doing a project , but i can find a ducted fan that the blades spin clockwise...i know all the fans are counter clockwise but i need one thats clockwise..... please help me

[@F3HDemonDriver1]

YES THAT TOO! THANKYOU!

[@Milesobrian]

Thoughts on building a ultralight with these?

[@curlywood]

Hello. I like to control 5 of these for a hover craft build two back throttle two right hand stick steering fans and a cushion fan can this be possible with a drone power distribution board two steering need to be in idle speed until I move the right stick for steering and can one battery be connected to each fan

[@F3HDemonDriver1]

@TheRcAirlineraddict That's what she said-> LMAO! just kidding . . . . . .yeah those Haoye's are big EDF's thanks for the comment!

[@MarkLoves2Fly]

So how likely is it that one of these EDFs will blow? What type of duty cycle can I expect reliably?

[@omkarkulkarni5918]

hey can u tell me in which direction the edf blades should move(clockwise or anticlockwise) if i am looking the edf blades from front view

[@F3HDemonDriver1]

Ohh Sorry Mate, I would use 2 5" Inch edfs each one will put out 12-14 pounds of thrust, that might be enough to get you & your board moving.

[@JSprayaEntertainment]

lipo battery for 70mm ducted fan ? ( think it has a 60a ESC )

[@captainsledge7554]

So which is better for longer flight time, gas or electric df.

[@fuhrerc18]

Im looking at building a medium to large scale a4 and i wasn't wanting to go to a turbine, what kind of thrust do the highest end of edf have?

[@JSprayaEntertainment]

its 3000kv brushless motor would a 5000mah 30c 7.4v lipo suck ?

[@akkudakkupl]

Sorry but when you got to part about that guy, I had to do it. You'd think we are responsible adults with hobbys, but so many prove it wrong. Hope the guy is alright.

[@alpha001ful]

Can you send me the link ? Where did you buy those ?

[@F3HDemonDriver1]

You could I have a design with two internal fans. . .but the problem is you need a more poerfull motor to rotate the multiple fans. . .. but it's worth trying.

[@devanshnigam4262]

also the tricopter i am making is small so a Edf with 10 blades or 12 blades is not required i think that one 70mm with 4 blades is the best but still i am unable to find it

[@F3HDemonDriver1]

+devansh Nigam. Sir the 70mm HET fan unit is the best 4 blade EDF on the market Sir, my 707, 767, BAC-111, DC-9 all use that uni.

[@cloudsplitter24]

Thanks! Great info as usual.

[@F3HDemonDriver1]

@bongose. Hi Bongose. . . .what is it more like 90 Euros?

[@F3HDemonDriver1]

Thanks! What do you mean by "dirt Board" Sir?

[@gautam456]

Great Video asusual , thanks for posting.

[@pranaygurram7344]

Hello I just want to know how much thrust does the 127 mm EDF generates for a certain height You said it generates around 12 pounds of thrust but upto what height if I use it vertically? Please do reply if you can help me???

[@danielkeirsteadsr6939]

What about EDF in a bush planes wings..Could it set you down like a butterfly ?

[@F3HDemonDriver1]

Nice idea Daniel!

[@F3HDemonDriver1]

@RcLento True big props are like ginsu knives flying around at 5,000 RMP i've seen fingers lost!

[@F3HDemonDriver1]

Yes indeed SIr, some people do that, I simply move away from the EDF when testing it.

[@sonudhingra2795]

Hii sir I want to know about that rc duct fans are available in clockwise and anticlockwise system ...bcz I want to use this in my quadcopter Plz reply sir

[@puttockh]

hi im taking Design and Technology for one of my A-levels and i was wondering if you could help me out ? basically id like to take some edf's and attach them to a road bike to give me some serious thrust. now i was wondering if you could tell me about costings ? i have done abit of resurch into it already and i think maybe two of the 127mm edfs you had would be perfect. i live in england so i would have to buy the stuff here. but ye what were they called and how much did they cost ? thanks

[@skippickens1843]

how do you figure the engine that will work on an air plane, for example the plane weighs about 20 pounds, what EDF Electric Ducted fan would you use, what BA ?

[@F3HDemonDriver1]

The way I determine the right EDF unit is this, the thrust the EDF puts out and the weight on the EDF + Brushless motor, then take into account the weight of your plane, so a 20 Pound RC Plane I would go with two 100mm or two 125mm EDF units. you want at-least 9lbs of thrust from each EDF.

[@skippickens1843]

Thank you so much, very big help. I enjoy your videos

[@F3HDemonDriver1]

Thankyou Skip!

[@angelofmusic477]

From experiment smaller diameter EDF are more efficient than the bigger diameter edf. I particular like the 55mm diamer. Two of the 55mm could produce over 500grams of combine thrust at 10.8V x25 to 28amps. Its very difficult to get over 500gram of thrust with 10.8V x 25amps of power from a single EDF...my 2 cents.

[@F3HDemonDriver1]

I totally Agree Angel-of-M, but you need to remember I made this video 8 years ago and EDF's have changed allot since then and I've learned allot more about them.

[@F3HDemonDriver1]

I will my freind . . . thanks for the suggestion.

[@ufoengines]

Cool! Any plans to make a Dr. Lippisch Aerodyne? Or even better a Lippisch Aerodyne Sedan!

[@F3HDemonDriver1]

Cool Idea Indeed Sir!

[@mohkhatatbeh4685]

Which Type of lipo battery 3s-4s & ECs can use it ? and how to select type of ducted based on the weight of my RC Jet Airplane ?

[@F3HDemonDriver1]

What is the size and weight of your RC Jet?

[@boeing747lover_08]

I love these suckers!!

[@VJBILL1]

I was wondering. I am planning to build a aircraft of my own with foam and I am trying to decide on an electric ducted fan motor. Is there a way in which I can make the ducted propel the aircraft at +80mph while also prolonging its flight duration to 10+ min?

[@maelyorn1840]

Thats the whole riddle of Flying cars hahah

[@jeremyescalante12]

what type of battery would you recommend for a 90mm edf, curruently iam doing a project were i put an edf enginein a rc car .

[@F3HDemonDriver1]

Hi Sir, It all depends on the Motor and what the manufacturer recommends but 90mm EDF's Usually use 18 to 22 Volts of power and 5 to 6 Cell Lipos

[@prasadtadiparty3948]

Hi, iam making an airliner with dual edfs on either side of the wing. so do I need two 11.1v lipo batteries for good efficiency. for how many minutes we can take the plane in skies? with 2 batteries

[@F3HDemonDriver1]

2 Lipo batteries for two EDF's is what I would do, although so people use one larger lipo to power both EDF units.

[@F3HDemonDriver1]

For that kind of speed you want to look at WeMotek, HET, SchuberFan, or any of the new 90mm 10+ blade EDF's that are now on the market. and 10 minutes plus flying duration all centers around your battery and amperage draw of the battery, I would say a 3000Mah+ battery will give you the flight times you desire. remember this video was made almost two years ago and ALLOT has changed in EDF technology since then.

[@F3HDemonDriver1]

@khowlette Thanks Keith! yeah I've seen these things fail at 40 thousand RPM . . . .scary Stuff!

[@RcLento]

Edf is always more safe than big props !

[@F3HDemonDriver1]

Thanks!

[@F3HDemonDriver1]

That's true But The cost of a 10+ inch EDF and Motor & 300Amp+ speed controller will cost 3-4 Thousand & up, Not a bad Idea though.

[@devanshnigam4262]

hello sir I am trying to make a tricopter and want to use ducted fans in it in this video u have suggested the 70mm 4 blade edf to be one of the best as it is ready to use out of the box can u tell me from which site have u purchased it or can u let me know about some site where I can get those.

[@F3HDemonDriver1]

+devansh Nigam Try HET Typoon Edfs Or WeMoTech Fans Or even Dr Mad thrust fans on Hobbyking.

[@F3HDemonDriver1]

+devansh Nigam sorry for the Late reply Devansh

[@F3HDemonDriver1]

Thanks . . . .I think people only learn when they get hurt.

[@hooch330]

Hi i have a glow engine 25 os with tuned pipe and the fan i have in at the minute i feeel is not powerfull enough to get my jet in the air as its taking to much runway.could you tell me the max fan blade size i could use on my 25 glow engine please? much appreciated for any info and thanks in advance

[@F3HDemonDriver1]

David Reeves if your using a 25 O.S. glow engine the I would say its only suitable to be used in a 70mm fan nothing bigger.

[@ibrahimghawanmeh8066]

We're trying to build a flying wing airplane with a ducted fan located in the middle of each wing. For a span of 2.2 and taper ratio of 0.5 and mass up to 4 kg how big is the ducted fan that will fly this thing?

[@F3HDemonDriver1]

ibrahim ghawanmeh Nice sounds great! But 2,2 what? meters?, yards?

[@ibrahimghawanmeh8066]

2.2 meters. Sorry about that

[@sonudhingra2795]

Sir is it possible to purchase clockwise and anticlockwise edf...if possible then plz tell me from where I can buy this

[@F3HDemonDriver1]

Yes they do sell counterclockwise spinning edfs, there are a few retailers out there Like EDF-DOT-COM and a few more.

[@sonudhingra2795]

Sir I want to use these duct fans for a drone project...I visit the edf.com not get proper info can you plz send a link of clockwise and anticlockwise edf

[@F3HDemonDriver1]

You might also try EJF-DOT-COM or FANJETSUSA-DOT-COM

[@F3HDemonDriver1]

I have indeed Sir, someday I hope to.

[@earlyhemibill]

What motor and voltage would I need to drive a 90mm fan at 50,000RPM?

[@yangexue6596]

Try a 1450KV motor. For the battery just multiply the voltage by the KV to get the rpm. Oh and get a bit more RPM than you need because the motor might slow down under load.

[@JSprayaEntertainment]

i think its the more Volts the heavier because more volts means more cells ... 4s like Two times bigger than a 2s... mah my hobby store said is your capacity or run time...but my 5000 mah came in the mail its small its only 2 cells thick , but im worried i wont have enough volts going to my 60A ESC to make the car move lol

[@F3HDemonDriver1]

@gautam456. Thankyou Gautam!

[@jackmetcalf2092]

So its been a while since the video.. I bet the EPF hobbies unit has failed by now.. Also don't confuse people.. the rotor is balanced on the HET to a degree.. Once you install it.. its close but not dynamic balanced .. Dynamic balanced means that the unit is all balanced together which means its assembled and spooled up.. THE HET has not bullet connectors so the rotor is balanced but once assembled its not in balance. HET is awesome but a pain to balance perfectly.. If you have any rub marks in your fan its not blade stretch its a balance issue! good video...

[@F3HDemonDriver1]

Hi Jack . . Yeah this video was made 3 years ago right before the new multi 10+ blade edf units came on the market. . . . I need to do a newer follow up video.

[@rcaddict72]

blade stretch only occurs at very high rpm. for nylon 6/6 its at about the 70k rpm mark where serious deformation occurs, and way over 120k for yield. no fans are dynamically balanced, because as you say, once installed it needs rebalancing.

[@salvor1]

can't find any Byron fan (where to get) info -there is no 'Untied Hobby' anywhere -??

[@F3HDemonDriver1]

+salvor1 Byron Fan's are No longer manufactured sadly, I own a few 5" Byrons and you can find private sellers you sell them.

[@techdiyer5290]

13:45 I like ur video, but you should probably warn ppl before you start talking about the edfs....

[@F3HDemonDriver1]

@rcturbines You know your right I have both EDF's that is a Turbomax, I also have a byron fan I got them mixed up->LMAO! thanks for the info Boss!

[@F3HDemonDriver1]

@LinkinPark2135 I glad this video helped thanks!

[@F3HDemonDriver1]

thankyou Sir Very kind of you . . .but I'm an average RC pilot . . . .even though I have been flying on and off since I was 9. Lol

[@diegoandalexcockatiel7540]

What electric engine should i use for a 100kg 4-motored plane that is cheap

[@F3HDemonDriver1]

220 Pounds? Wow you might want to try an actual RC Kerosene Turbine engine for that, you'd need something like that to power a plane that size Diego.

[@diegoandalexcockatiel7540]

@@F3HDemonDriver1 haha makes sense or i might get about 50 edf s to power it

[@F3HDemonDriver1]

What type of Aircraft is it?

[@diegoandalexcockatiel7540]

@@F3HDemonDriver1 aluminam 747-8

[@F3HDemonDriver1]

Wow-Nice, You have any Videos Of it? or are you still building it?

[@F3HDemonDriver1]

@poppopscarvinshop. Thankyou kindly!

[@powerfun1523]

Let's talk about EDF's Electric Ducted Fans!

[@F3HDemonDriver1]

LOL, Yes indeed!

[@F3HDemonDriver1]

Maybee a 11 volt lipo at 2200 to 3000 mah. . . .remember the more mah the bigger & heavier the battery

[@socshooter]

F3HDemon @ 8:21 you stated that the fan is a Byron, you are incorrect. That 5 inch fan is a Turbax fan, a Byron fan is 6 inches... FYI

[@F3HDemonDriver1]

Turbax fan indeed Sir . . I stand corrected!

[@shoyur]

Does anyone please know what is the requirement of an EDF, i want to use a cheap ebay 30mm 13,000kv EDF, without ESC, just directly, to make a miniature cyclonic vacuum, i have an AC drive, but it doesnt go past 500Hz.., thank you !

[@F3HDemonDriver1]

Not a bad idea Mike! Your gonna need some kind of electrical fuse or circuit to control the motor. . . . You might be able to pull the guts out of a hair dryer.

[@keenansmithvlogs]

that thing is HUGE!!!!!!!!!

[@rebelyell22]

He means dirtboard...like a mountain board. ie: offroad skateboard lol. When is the starship coming?

[@juhaheikkila]

helicopters, planes they all share that same threat with spinning force on their blades.

[@anshtripathi7913]

can you tell me where you get these fans from?

[@F3HDemonDriver1]

Try UnitedHobbies or RCLander.

[@chvfrk]

what edf puts out 1000cfm+ , 15lbs+ thrust /boost

[@F3HDemonDriver1]

chvfrk That's One Powerfull EDF Sir!

[@chvfrk]

F3HDemonDriver is there a ducted fan that produces that or would a pair work

[@MonacoBlast]

Ever thought about holding some workshops?

[@F3HDemonDriver1]

@cloudsplitter24. Thanks Cloud! You've gotta silver linning!

[@AbdulSamad-rl5yu]

which type of ducted fan suitable for gas turbine hybrid engine project

[@F3HDemonDriver1]

A Byron-fan which come from the 1970's To 1980's & are had to find Sir.

[@AbdulSamad-rl5yu]

RC DemonDriver sir can u suggest me about hybrid gas turbine engine as a project

[@F3HDemonDriver1]

That's something that I haven't tried myself so I wouldn't be the right person to ask Sir, sorry.

[@lordherculesyt6048]

Which type of edfs is used to fly a man.

[@footyeverything516]

please where did you get engine

[@F3HDemonDriver1]

All Over Ahmad, Ebay, Tower Bobbies, EJF Hobbies, United Hobbies.

[@boeing747lover_08]

The big daddy 5inch is the best

[@F3HDemonDriver1]

I do that sometimes. . . .lol

[@ohmannhey]

You've got things back to front: 55 $ -> 43 € ;-)

[@EDFjetRC]

Hello. Great job. please check our latest EDF hexa copter project. you will be amazed by the power and the flight control. Electric Jet Multicopter I6 EDF 20140306 - 2nd flight - 8minutes - 3.5kg hexa, WKM

[@einherz]

i looking pc fan, this is good enough

[@F3HDemonDriver1]

@bongose. 25 Euros?

[@davidorth4906]

I think China is angry, but in a good way for R/C guys.

[@bongose]

@F3HDemonDriver :) at today's rate it's 40.6€! The USD is getting stronger again. (Finally :D)