Nanospot Sport Jet Wing....109mph+ on 4s...New 3s video post #192 - Page 12 - RC Groups
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Dec 23, 2012, 04:27 PM
Lee Liddle
Knife Liddle's Avatar

Successful Speed Session

I just got back from flying with Darren and his buddy George. Darren had a rough day with both of his fast prop jets having tech issues, but he hung out and helped me get some good video of the Nano S.

I flew it 5 times, 3 on 3s and 2 times on 4s. The 4s flights are on Darren`s phone, so he`ll post those when he gets time, but here`s one of the 3s flights. I`ve just checked it with RC Speedo and can only get a reading on a few of the final passes of the flight, when the batts were getting low. Even so, I`m getting 87mph upwind at 2:03 and 113mph downwind at 2:14, for an average of 100mph

If that`s the case, I`m pretty sure that some of the earlier passes would average even higher for the first official sub 40mm edf to break the 100mph barrier. I`ll be pretty happy if that is verified by Doppler. BTW the temp at the time (aprox 1:30 pm in Farmers Branch, Texas) was 63F.

But then I decided to go for broke and try this 6 turn motor on 4s. I wasn`t sure that it would hold up, but I got in two 4s flights and the motor still runs, although the windings are pretty dark.

On the first 4s flight one of the cells seemed to be weak, because it was faster, but not as fast as I had expected. On the final flight of the day, everything came together for some very fast passes, and yes, the motor still runs .

My seat of the pants guess is that it is in the 110mph range, maybe just a little more. It will be interesting to see how the results shake out.

There are still a few things that I can do to clean up the airframe and get a little more speed, and of course it needs an efflux tube. So maybe I can crowd that 120mph mark before it maxes out.

Nanospot on 3s (2 min 37 sec)
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Dec 23, 2012, 07:27 PM
Lee Liddle
Knife Liddle's Avatar

4s Flight....Average speed 109mph!!

Thanks Darren for posting the video and doing the Doppler so quickly. It was fun flying with you and George today. Thanks again.

Well everyone, here`s video proof of the first sub 40mm edf to do 100mph+. Darren did Doppler on it and gets 109mph and change for the average of up and down wind speeds. With better lipos and a few more refinements to the airframe, I think I can push it up above 115. Stay tuned!!

Lee's Nano Spot second 4S flight (2 min 36 sec)
Dec 24, 2012, 03:08 AM
corsair nut's Avatar
wow! kudos man!
Dec 24, 2012, 06:16 AM
Fear me, I'm a space-duck.
hanzie's Avatar
I feel like making one now. Maybe once I'm done with my current project.
Dec 24, 2012, 08:02 AM
For Sale-everything over 250 g
That thing is smokin! Great job! "incendiary round" lol.
Dec 24, 2012, 10:15 AM
Lee Liddle
Knife Liddle's Avatar
Thanks Guys! Yep I`m very excited by the results yesterday. This little jet as exceeded my expectations. It`s easy to build, the fan and esc can be easily serviced, and once it`s dialed in, it`s very easy to fly at high speeds.

It`s also a very flexible design. Here is a short list of it`s development stages....

1) First it started as a foam 1oz profile pusher jet on 1s and about 10w. Also flew it on 2s at about 2oz weight and maybe 70w. On 1s it would have been nice indoor performance, on 2s it was great in winds up to about 10mph and had unlimited vertical

2) Then I built a full bodied foam 2s edf with the stock Sky Angle fan/motor/ 6a esc.

3) The above airframe was beefed up and fitted with 3s 360mah 25c lipos and a 12a esc.
This one was clocked ay 79mph

4) This same airframe was pushed to the limit (I think) with a few runs on 4s 360mah cells. The speed increased to about 88mph, but the motor failed after about 4 flights.

5) Then I decided push for 100mph with 4s power, an 18a esc and a rewound motor
capable of over 200w. To fit the power system, I enlarged the airframe slightly and used balsa to build it.
I felt that balsa was needed for it`s extra strength and stiffness. This is the setup that just did 109mph.

I guess the point is that the basic design is very flexible and anyone interested in building one can tailor the building material and power system to match their desired performance level.
Last edited by Knife Liddle; Dec 24, 2012 at 12:24 PM. Reason: Corrected and added some info
Dec 24, 2012, 04:39 PM
Lee Liddle
Knife Liddle's Avatar
You've seen the Nspot go fast, so I wanted to get a video of how maneuverable it is. Camera is still too low, but it's better and shows more of the flight envelope. This flight ends in a flat spin. Excuse the French. But the damage was just a few minor cracks in the fuse, 5min repair. When I get a better video I'll post it.

ON the spin.... This airframe, when put into a hard stall with power off, will go into a flat spin. If you have power available, simply go to high power and point the nose down a little and it will quickly recover. The problem was that I hit LVC at the top of a straight vertical climb. I tried to restart the motor, but there wasn`t enough power to recover. Since it hit on an incline with the nose going away from the hill, there was almost no damage. Note to self....set the timer....and go by it.

Aerobatic Video of Nanospot (3 min 2 sec)
Last edited by Knife Liddle; Dec 24, 2012 at 05:00 PM.
Dec 24, 2012, 07:34 PM
Team30 Micro EDF
NitroCharged's Avatar
Last edited by NitroCharged; Dec 24, 2012 at 07:52 PM.
Dec 24, 2012, 09:03 PM
Lee Liddle
Knife Liddle's Avatar
What happened to your post Dave? Let me know if you get a chance to check the Doppler.
Dec 25, 2012, 08:27 AM
Registered User
D_FAST's Avatar
Wow +1
How can you even see that!

very nicely done
Dec 25, 2012, 12:16 PM
Need 4 Speed!
pdawg's Avatar
Congrat Lee for being member #3 of the micro edf 100 mph club
Latest blog entry: original Y/A F-18 Kit
Dec 25, 2012, 12:39 PM
Lee Liddle
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Thanks Bret!
Dec 25, 2012, 03:20 PM
Registered User
Congradulations!!! You 100+ mpher's are my HEROES.

Dec 26, 2012, 12:24 PM
Lee Liddle
Knife Liddle's Avatar
Originally Posted by pdawg
Congrat Lee for being member #3 of the micro edf 100 mph club
So I guess the members are you, Brent and me, right? Maybe I should change my name to Brad or something, so I'm a better member.
Dec 26, 2012, 12:26 PM
Lee Liddle
Knife Liddle's Avatar
Originally Posted by ksqm
Congradulations!!! You 100+ mpher's are my HEROES.

Thanks Ks. As you can hear in the video, it was fun for sure.

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