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Byron fan unit to electric conversion

Old 09-07-2020, 02:01 PM
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1/2 time show
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Default Byron fan unit to electric conversion

I picked up this very old F-4 phantom unstarted kit it is 98 inches long 63 inch wing span. It is set up for Byron ducted fan units I have 2 byron fan units that I would like to convert to electric. Any help I can get to make this happen would be much appreciated I do not have much experience in electric




stuff
Old 09-07-2020, 02:59 PM
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Awesome looking kit, build nice and light, couple of 100-120 mm units on 10-12S will run it nicely. Your wallet is the choice, there is so much to select from these days. I would go for known brands and reliability. Nice.
Old 09-07-2020, 06:01 PM
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bob ruff, here and on rcg, can help with the byron conversion stuff. he has done more that a few.
Old 09-08-2020, 03:08 AM
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It sounds like from your opening post you are looking at using an electric motor on the Byron fan unit instead of an engine.. While getting a comparable motor size is easy enough you might have problems matching the RPM. Certainly more info on the fan unit is needed.

Of course I could be reading it wrong and the other guys may have it right. Changing to a complete EDF unit would be simpler. But, then, you still have those two Byron fan units.
Old 09-08-2020, 08:15 PM
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I have converted a number or Byron's to EDF using the stock fan. No problem getting the RPM's. I have converted the following Byron jets: Mig 15, F-16, F-86H and Sterner P-80. Working on a Byron BD-5J and Saab Draken (Byron fan) now. Would love to find an Byron F-18 to convert.
Bob
Old 09-09-2020, 11:53 AM
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Hello Bob Did you receive my email? I need to find out what motors and esc's to buy...
Old 09-09-2020, 11:54 AM
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yeah and the Byron fan units will bolt right in
Old 09-13-2020, 09:25 PM
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Aren't modern fans (a lot) more effective, and much easier on the ears?

Vriendelijke groeten en wees voorzichtig, Ron
• Without a watt-meter you´re in the dark ... until something starts to glow •
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Old 11-24-2020, 07:34 AM
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Originally Posted by bruff View Post
I have converted a number or Byron's to EDF using the stock fan. No problem getting the RPM's. I have converted the following Byron jets: Mig 15, F-16, F-86H and Sterner P-80. Working on a Byron BD-5J and Saab Draken (Byron fan) now. Would love to find an Byron F-18 to convert.
Bob
Bob, I have a Byron fan unit I'm interested in converting to electric. Do you by change have a thread or something that shows the steps/parts needed to do the conversion?
Thanks in advance,
-Jorden
Old 11-25-2020, 08:53 PM
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Hey guys,

Good new for those looking for a Byron Electric Conversion Kit. I'm working on it right now and hope to have something available in the near future. I'll put up some pictures of what I have so far and expect for the conversion kit to be available early next year as long as we are not in a civil war.

I already have a proven conversion kit for the Dynamax. Take a look at my website: www.edfdynamax.com for more info. I plan to do something similar for the Byron fan and will aim to keep the cost between $50-100 for each conversion kit (not including the motor).

Last edited by Pubhi; 11-25-2020 at 08:57 PM.
Old 02-06-2021, 06:36 AM
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Why?

Outside of the fact you already have the ByroJet "pusher" fans and $ invested...the net return from this investment is not going to yield the power to weight to meet your expectations. There is a reason those two large cheater holes are in the bottom of the fuselage just ahead of the fans. A pair of 110mm JetFan or Hacker on 12s generate 40+ pounds of thrust or 30+ on 10s. Not to come off sounding negative...there is a "huge" blade pitch differential / performance diff.

Last edited by Flite-Metal; 02-06-2021 at 06:40 AM.
Old 02-08-2021, 01:08 PM
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Originally Posted by Flite-Metal View Post
Why?

Outside of the fact you already have the ByroJet "pusher" fans and $ invested...the net return from this investment is not going to yield the power to weight to meet your expectations. There is a reason those two large cheater holes are in the bottom of the fuselage just ahead of the fans. A pair of 110mm JetFan or Hacker on 12s generate 40+ pounds of thrust or 30+ on 10s. Not to come off sounding negative...there is a "huge" blade pitch differential / performance diff.

+1

There’s also the Jetfan 120Eco if you like it cheaper.
Old 02-08-2021, 01:27 PM
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eJets is (Renier's JetFan) direct sales. Hacker has a US sale office in K.C. ECO 120's are no longer available.
Further more the 110's on 12s will save 20% of the AUW...while drawing less amps & cooler running ​​​​​​​with Hacker
​​​​​​​motor.
.

12S Voltage under load: 44.4V Current: 160A Watts: 7,100
Thrust in grams: 9,200 Thrust in pounds: 20.25 lbs
.
110's are less expensive than the 120's. Yes, there may be some 120 ECO still in Europe...this plus cost of shipping.
I am guessing it is still going to be more expensive than the 20+ pounds of thrust from each 110. There is nothing to
be gained from use of 120ECO other than weight. The 110 FSA will be closer to that of each inlet on the F4.

Just a thought...

Last edited by Flite-Metal; 02-08-2021 at 01:42 PM.
Old 03-04-2021, 09:15 PM
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The Byron fan is unique. Very easy to convert to electric. $45.00 adapter. I'm getting more made as we speak. I found that installing a modern fan in a Byron jet, including the new inlet duct and sealing the cheater hole does not gain that much. Would I put a Byron fan in a new jet, no of course not. I use the Streamfan 110 in a number of my jets. All though in a Byron design jet. I like the simple approach, stock fan, no inlet duct , plenty of static thrust (no dynamic thrust to speak of). They fly great and very relaxing. My lastest is a Sab Draken (mold were used for the movie "Firebirds"). Work great with the original design Byron fan installed. One is flying with the Jetfan 110, another one is near completion as a turbine. The stock Byron fan as an EDF put out more RPM then the OS 91 did by about 2000 RPM.
Bob
Old 06-02-2021, 05:58 PM
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The EDF adapter for Byrom 6" fan is listed on Ebay in the toys and Hobby section. Just search under Byron.
Bob
Old 12-17-2021, 10:35 AM
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Default Byron F-18 Electric Conversion

Bob,

i have a Byron F-18 I will be converting to electric on the Byron fan. Do you think with your adapter and HET 800-73-590 motor it will work?

adam
Old 01-13-2022, 07:51 PM
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Hi Bob,

I have a Bob Parkinson Regal Eagle with a Byron fan unit converted to electric. I have to repair the landing gear mounts because I hit a large hole and tore them out on a landing. It is not a speed ship but flies like a Regal Eagle did with a Byron fan an a O.S..91 DF engine. The last time I ran this fan unit and downloaded the specs from the Castle 160A speed control, the RPM's were 23, 400. I am using 2 6 cell 5.0 AH batteries. Flight times are about 5 to 8 minuets depending on how fast I fly it. Total weight with batteries, 16 lbs. good luck...

Larry
Old 04-15-2022, 06:42 PM
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Originally Posted by rexmexx View Post
+1

There’s also the Jetfan 120Eco if you like it cheaper.
I flew the Byron fan in the late 80's with a Rossi .90 DF engine. The static thrust at that time was 12 to 13 lbs. With the Byron fan converted to electric, you can get almost 14 to 16 lbs of thrust. With that much gain, I think you could get rid of the cheater holes and use a inlet liner.
Would be interesting to see how much performance was gained.

Larry
Old 04-29-2022, 05:47 PM
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I get now 10+ kilos thrust on full burst of power with my 127mm Ramtec, at 240 A current draw, compare to an old IC/OS'91 screamer, peaking at 6kg max. it comes very handy in some nasty tail heavy landing scenarios that happened to me few days ago while landing it tail heavy.

Tail heavy landing with 10+Kw 127mm EDF Giant.

Last edited by Joseph Frost; 04-29-2022 at 05:51 PM.

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