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Old 09-24-2018, 09:11 AM   #12706
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Old 09-24-2018, 09:12 AM   #12707
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Duuuuuude, you're getting deep in the edf game. You must have a bungee launch now?
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Old 09-24-2018, 09:20 AM   #12708
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I would smash that thing into 153,817 pieces the first time I tried to fly it.
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Old 09-24-2018, 09:23 AM   #12709
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Stall speed only slightly lower than an actual airplane.
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Old 09-24-2018, 09:41 AM   #12710
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Duuuuuude, you're getting deep in the edf game. You must have a bungee launch now?
Electric Ducted Fan? Is that a thing now?

I imagine that is a handful to fly.

edit, yeah not a trainer....


youtu.be/O0Yae7YU-Z4
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Old 09-24-2018, 09:49 AM   #12711
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They were just starting to get a little bit popular when I was doing rc stuff maybeeeee 15 years ago. Etec 1200's were just coming out. Can't believe where ducted fans are at now.
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Old 09-24-2018, 09:50 AM   #12712
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Old 09-24-2018, 09:54 AM   #12713
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They were just starting to get a little bit popular when I was doing rc stuff maybeeeee 15 years ago. Etec 1200's were just coming out. Can't believe where ducted fans are at now.
Crazy. My grandpa was a nitro, balsa wood scratch builder for 40 years. Some of his stuff was beautiful. The hobby was all but dead when he was most active. Glad to see the electrics and pre-builts getting young people into it.

How much thrust can those lil screamer EDF's make?
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Old 09-24-2018, 09:57 AM   #12714
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Generally that's not their strong point, they're all about rpm, like turbines.
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Old 09-24-2018, 10:14 AM   #12715
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Generally that's not their strong point, they're all about rpm, like turbines.
But don't you need da thrust to move the plane? The lil jet I posted was hauling ass. Had to have some push behind it right?
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Old 09-24-2018, 10:29 AM   #12716
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A little, but nothing like a regular brushless setup, even an inrunner. I only played with smaller stuff, but launching an edf by hand was always a challenge to see if it'd get on step before it dropped into the grass. Even on a runway they take a minute, though the one in the video looked decent. The best was a good bungee launch, otherwise it's like trying to take off from a light in third.
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Old 09-24-2018, 10:54 AM   #12717
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A little, but nothing like a regular brushless setup, even an inrunner. I only played with smaller stuff, but launching an edf by hand was always a challenge to see if it'd get on step before it dropped into the grass. Even on a runway they take a minute, though the one in the video looked decent. The best was a good bungee launch, otherwise it's like trying to take off from a light in third.
I have a bungee launcher that I use for my fiberglass spear. The rest I take off using a runway. Some take longer than others to get off the ground. The major adjustments on EDFs versus a prop plane is the landing speed is generally higher and you need to be moving to control it. The second part might be confusing to some, but prop planes get a lot of their low speed handling help from the wind generated by the prop over the control surfaces when things are slow. EDFs have no such help so in low to no airspeed moments you turn into a glider or brick. Also, tip stalls on warplanes are quite commonplace without adequate airspeed. Some of my EDFs are better than others in that regard.

I have really started to gravitate to EDFs lately. I find them more enjoyable to fly, although I do far less aerobatic stuff with them.
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Old 09-24-2018, 10:59 AM   #12718
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f15 Flying

These are pretty scale looking in the air.
This is mine last week.
Need to zoom in a little
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Old 09-24-2018, 11:36 AM   #12719
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Old 09-24-2018, 01:07 PM   #12720
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How much thrust can those lil screamer EDF's make?
As much as you are willing to pay for. As some point, electrics and batteries start to get close to turbines and then you might as well go for the real thing.

My 70mm edfs on 6s power easily put out 5+ pounds of thrust. I have not measured the thrust on the twin 80mm on the F14, but expect it to be in excess of 12-13 pounds. I doubt that model stock will have unlimited vertical (it is a heavy plane).
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