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« Reply #200 on: March 13, 2016, 09:05:14 PM »
Tanmay.mathur
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Glide it up



Solder them or check for ' rca female ' pin at local shops.
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Regards,
Tanmay mathur
 

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« Reply #201 on: March 14, 2016, 01:02:51 PM »
prabal276
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Have you tried rc hyper?
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SIMULATOR: MS FSX steam; PMDG 777; PMDG 737; IFLY 747-400!
RC FLEET: Junior 100, H.S 83, VT ALLROUNDER, WINDY.
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« Reply #202 on: March 14, 2016, 01:07:30 PM »
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http://www.rchyper.com/4mm-easy-solder-gold-connectors-10-pairs.html

just .5 mm extra BUT the Shop is really good and so are its owners.
One of the best in india
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TO BE BUILT: Pc-6 Porter (51"); BN-2 Islander (61"); BT-70
 

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« Reply #203 on: March 15, 2016, 11:05:29 PM »
Karthick Ashwath
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@admin

Sir, will you please change the title of this thread from "Selection of motor for tern" to "Building a solar plane"

Thanks in advance,
Karthick Ashwath.
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« Reply #204 on: March 16, 2017, 07:37:32 PM »
Karthick Ashwath
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Here is the video of my solar cell test(6"x6" polycrystalline)

Test results:
The setup is just the solar cell wired to a multimeter.
The voltage reading is fine. - open voltage is 0.6V
Short circuit current = 12A

All this meets the manufacturer's data.

So the actual power with a proper load will almost certainly be 4W.

More updates coming soon!
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« Reply #205 on: March 16, 2017, 07:40:13 PM »
Karthick Ashwath
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I have decided to change course and build a stock FT flyer with my electronics(DT750,2200mah 3s lipo,60A esc)
I will use depron instead of the super heavy foam I used before.
It is highly realistic and the expected AUW is 550g
I will be posting more updates soon.
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« Reply #206 on: March 16, 2017, 07:44:51 PM »
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Friend, it's not feasible.
A 2200 is heavy, dt750 is a overkill.
Go for a ft explorer.
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« Reply #207 on: March 16, 2017, 07:46:45 PM »
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I am going for the simplest plane. Wing loading is under 16oz/sq.ft.
Its running a 8x6 APC SF prop.
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« Reply #208 on: March 16, 2017, 07:48:37 PM »
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My avispad has a loading of 13 oz /sq.ft.
It will be a brick, friend.
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RC FLEET: Junior 100, H.S 83, VT ALLROUNDER, WINDY.
TO BE BUILT: Pc-6 Porter (51"); BN-2 Islander (61"); BT-70
 

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« Reply #209 on: March 16, 2017, 07:49:36 PM »
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Aerobatic planes have a loading of above 15 oz/sq.ft.
Why don't you go for maxeon panels?
Light, cheap and efficient.
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« Reply #210 on: March 17, 2017, 01:51:27 PM »
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Just tested the maxeon cells I received.
Volts- 0.624
Temperature- 320
Amps- 0.6??
At first place, thought something wrong with my multimeter. Checked with various power sources, the amp reading is accurate.
The cells which should produce around 5-6 amps are producing just 600mA.
Looks like a defective batch. Has anyone worked with these before. Head Scratching

20170317_101859.jpg
Re: Selection of motor for tern
* 20170317_101859.jpg (67.23 KB, 800x450 - viewed 72 times.)
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« Reply #211 on: March 17, 2017, 01:54:27 PM »
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I have,
They work just as specified.
I used them on my solar plane.
It flew magnificently.
My batch was quite okay....
Further, I see that you have not connected the three sub-cells of the single panel in parallel together.
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« Reply #212 on: March 17, 2017, 01:55:52 PM »
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When I measured one, it was low.
Wire up all of them together, you will get 6 amps.
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« Reply #213 on: March 17, 2017, 02:05:38 PM »
kiran rc
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When I measured one, it was low.
Wire up all of them together, you will get 6 amps.
Did you connect them in series?
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« Reply #214 on: March 17, 2017, 02:09:32 PM »
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I see that you have not connected the three sub-cells of the single panel in parallel together.
The three tabs of the cell are internally connected. I checked them with a continuity tester.
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« Reply #215 on: March 17, 2017, 02:11:34 PM »
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Just connect them even though that.
It just works that way. Don't ask me how.
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« Reply #216 on: March 17, 2017, 02:24:21 PM »
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Ok. I'll check it again ,connecting them.
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« Reply #217 on: March 17, 2017, 04:04:15 PM »
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Ok. Connecting the tabs together did not play any role in increasing the current. However after connecting 2 cells in series the output was around 1.6A. Maybe, this is happening due to the internal impedence of the multimeter. Looks like the meter is not able to calculate the current for a small voltage.
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« Reply #218 on: March 17, 2017, 07:53:00 PM »
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I connected 8 together.
Then was I able to get enough current
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« Reply #219 on: March 17, 2017, 09:44:02 PM »
Karthick Ashwath
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Yes I am planning to use maxeon cells I just wanted to test my own cell that I had.
Thanks for your data kiran sir.
« Last Edit: March 17, 2017, 09:55:02 PM by Karthick Ashwath » Logged
 

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« Reply #220 on: March 17, 2017, 09:54:23 PM »
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How did you avispad fly?What happened to your solar project?What wing loading are you recommending?
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« Reply #221 on: March 17, 2017, 10:04:32 PM »
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Avispad (VT-SHR) is finished.
Two planes; a Pilatus pc6 turbo Porter and Stevenson's windy are being constructed.
My solar plane was completed ages ago. Won the second prize.
Wing loading is recommended to be below 11 oz/ sq.ft.
I am not so confident with my Pilatus. The wing loading is coming out 15 oz/sq.ft. That scares me.
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« Reply #222 on: March 29, 2017, 07:32:18 PM »
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Hai .... friend's any one tell me the difference between pull and thrust rating in brusless motor
..it make me confused
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« Reply #223 on: March 29, 2017, 09:02:51 PM »
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@prabal276,
Prabal, this is Karthick's thread.
Where is your own? Bump it.
Want to know fate of your Pilatus. Will post a pic of mine  Grin
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