I am interested in building an edf f-35 but i looked for edf prices but their like 80bucks for a 64mm why are edfs expensive?
could you tell me where can i buy that cheap an edf???? how good is the performance?I just built an EDF plane on the cheap. It’s made from home insulation foam - total cost about £5. The EDF is a 64mm by QX-Motor, which I ordered direct from China. Cost was just under £30 including taxes and shipping. I got a cheap ESC from my local hobby store for £30, and servos were generic 9g cheapos. It flies great off my existing 3s 2200 batteries, and if I decide to spend a bit more it can cope with 4s with no modifications. So - as long as you can wait for slow shipping from China you can do it cheaper - it’s still more than a prop plane but it doesn’t have to cost hundreds.
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Thanks!This is what I’m using - looks to be about 30 bucks shipped to USA. Performance is very good - on a par with FMS I’d say from what I’ve seen (I have an FMS but that one is a 50mm). In my simple scratch build depron jet it will knife edge on 3s so pretty happ with that!
Link is here - Cheap EDF
I’m using the 3800kv on both 3s and 4s, with a 60a esc from the local hobby store.
And some flight footage of my simple “Easyjet“ here.
I got something for you i think it's a good deal.I am interested in building an edf f-35 but i looked for edf prices but their like 80bucks for a 64mm why are edfs expensive?
I've got two 50mm and one 70mm (all 4s versions) from Value Hobby and they work great! Certainly a lot of bang (whoosh?) for the buck.I found a guy on discord that send me a 64mm edf for 25 but it was just 3s one with 5 blades but it also had the esc so you could look at used stuff too. i recently learned about value hobby and their edfs look cheap.
That is awsome where can i find the plans?The 50mm fan from Value Hobby combined with a bit of DTFB makes for a lot of fun! I designed and built a delta based on the FT Simple Delta plans, with my own fuselage and fin. It flies amazingly well on a 4S 1350 pack, and has more than a 1:1 thrust to weight ratio. Total investment less than $100. Here's a bit of video.
I was thinking of getting a 50mm and experimenting with it. then going on to 64mm. any suggestions on a 50mm plane?Looking at EDF prices, it essentially goes that the larger the size, the much more expensive it is. And by exponential dollars in terms of motor and fan, escapes, and batteries.
Yet, it is possible to have fun with cheap 64mm 5 bladed 3s EDF's and don't break the bank. The only negative factor is don't go looking for high speeds with this setup.
As long as you build light and use a 1300mm battery, you can get a 3-5 min flight and have fun with EDF's.
You can build even a 2 engine transport, SR-71, A-10 Warthog and a flying wing and don't break the bank and each flies nicely. Here is an 64 EDF with a 1300 mah battery that flies nicely in the gusty winds due to a 20 degree dihedral.
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Thanks! There real aren’t any plans, I made it up as I went. There’s more info in this thread: https://www.rcgroups.com/forums/showthread.php?3903353-50mm-DTFB-DeltaThat is awsome where can i find the plans?
Thanks for tthe informationf-35lover
In theory each with the appropriate kv motor there is no difference in the performance between identical 3 & 4s EDFs. The Watts will be the same but the 3s will take more amps to do it.
In practise it is normal to use the extra voltage of 4s to give it a more power but it is likely to need a bit more battery capacity and thus weight to give the same flight time.
Be aware that using 4s on a 3s EDF will likely cause it to burn out. The motors are different.